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Prof. Kevin M. Ryan

Biography

Professor Kevin M. Ryan obtained his PhD in Chemistry from University College Cork in 2002 . Following his PhD, he worked as an Enterprise Ireland postdoctoral fellow at UCC before taking up a 2 year Marie Curie Industrial host fellowship at Merck Chemicals Ltd. Southampton in their Nanotechnologies New Business division in 2003. He subsequently carried out a Marie Curie Outgoing fellowship at the University of California, Berkeley in 2005/2006 working on semiconductor nanorod synthesis and superlattice assembly. Currently his lab and group are based at the Bernal Institute, University of Limerick. www.ifnano.com for full group description

Research Interests

Keywords: Colloidal Nanocrystals, Nanorods, Nanowires, Silicon, Germanium, Cadmium Sulphide, Cadmium Selenide, Copper Indium Gallium Sulphide/selenide (CIGS), Dicopper-zinc-tin-tetrasulphide (CZTS), Nanorod Assembly, Electrophoretic Assembly, Charge based Assembly, Thin-films, Photoabsorbers, Lithium ion batteries.

The group research interests are in: [1] Colloidal Nanocrystals with particular emphasis on Semiconductor Nanorods and their device scale assembly by directed (Electric fields ) or non-directed for scaleable applications in photovoltaics. The group has pioneered routes whereby the nanorods can be assembled from solution such that each rod is Vertically Aligned and Close packed (-allowing the formation of a forest of nanoscale photo absorbers directly from solution). As the semiconductors are pot synthesized and processed from solution (-similar to an ink) they offer a low cost protocol to thin-film devices. The group has recently extended the nanorod synthesis and assembly protocols to copper indium gallium sulfide/selenide (CIGS) and dicopper-zinc-tin-tetrasulphide (CZTS). These materials are attractive for their high efficiencies in thin-film devices and CZTS in particular is viewed as an attractive long term solution for low cost photovoltaics as all the elements are in high natural abundance. Funding for this work is through a Science Foundation Ireland Principal Investigator Award and through the SFI Strategic Research Cluster in Solar Energy Conversion.

Home

[2] Low cost solution synthesis of silicon and germanium nanowires by seeded and non-seeded strategies particularly targeted towards generating wires in high yield. We have developed a novel synthetic protocol that allows the growth of group 14 nanowires in the vapor phase of high boiling point solvents in glass ware based apparatus allowing high purity nanowires to be formed either with or without catalysts . Recently we have used indium and tin catalysts for form high density arrays of silicon and germanium wires on substrates and have extended the syntheses to metal silicide structures. Control over nanowire length for the formation of nanorods was achieved by a modification of this synthesis protocol. Investigation of nanowires of germanium as anodes for Lithium ion batteries is funded through the European Union GREENLION project with a consortium of 14 partners including large car manufactures such as SEAT and Volkswagen. The investigation of non-seeded nanowires for ICT is funded through an SFI Principal Investigator grant with industry support from Intel Ireland. For additional information see featured posts and full publication listings.Home

Teaching Interests


Modules


4 modules taught annually, CH4252 (Inorganic Chemistry 1B), CH4253 ( Inorganic Chemistry 2B), CH4305 ( Analytical Chemistry 3/Crystallography) and CH4017 (Chemical Nanotechnology). Approximately 300 students annually all with labs

14 FYPs in past 5 years


Programme management/admin


Course Director Pharmaceutical and Industrial Chemistry since June 12, Accreditation of course through RSC achieved in December 12. Part of UL team that succesfully attained funding for a Graduate School in Nanoscience and Nanotechnology now in its second year. This structured PhD programme now forms the basis of all PhDs


New Modules


CH4017, Chemical Nanotechnology, final year Elective for 4th year PIC students.

Professional Activities

Patent

  • 2012 US8138067 - Method and System for Synthesis of Semiconductor Nanowires
  • 2002 US6699797 - Method of Fabrication of Low Dielectric Constant Porous Metal Silicate Film

Award

  • 2011 - MSSI Researcher Award
  • 2001 - Institute of Chemistry of Ireland Golden Jubilee Award

Employment

  • 2006 University of California Berkeley - Marie Curie Research Fellow
  • 2003 Merck Chemicals Ltd. - Marie Curie Fellow
  • 2002 University College Cork - Enterprise Ireland Research Fellow

Association

  • 2003 Association of Reserchers who have receive a Marie Curie Award, Marie Curie Fellowship Association
  • 2001 Member, Royal Society of Chemistry

Education

  • 2003 University College Cork - Ph.D.
  • 1999 University College Cork - B.Sc.

Publications

Book Chapters

2003

Macroporous Materials as Templates for Semiconductor Nanowire Assembly
Holmes, JD; Morris, MA; Ryan, KM
(2003) Macroporous Materials as Templates for Semiconductor Nanowire Assembly
In Self Assembly; pp. 175-183

Peer Reviewed Journals

2020

Influence of Carbonate-Based Additives on the Electrochemical Performance of Si NW Anodes Cycled in an Ionic Liquid Electrolyte.
Stokes K;Kennedy T;Kim GT;Geaney H;Storan D;Laffir F;Appetecchi GB;Passerini S;Ryan KM;
(2020) Influence of Carbonate-Based Additives on the Electrochemical Performance of Si NW Anodes Cycled in an Ionic Liquid Electrolyte.
In Nano Letters;
DOI: 10.1021/acs.nanolett.0c01774
[ULIR]

2020

Pharmaceutical Nanoparticle Isolation Using CO2-Assisted Dynamic Bed Coating.
Verma V;Ryan KM;Padrela L;
(2020) Pharmaceutical Nanoparticle Isolation Using CO2-Assisted Dynamic Bed Coating.
In International journal of pharmaceutics;
DOI: 10.1016/j.ijpharm.2020.120032

2020

Direct visualization of phase-matched efficient second harmonic and broadband sum frequency generation in hybrid plasmonic nanostructures.
Li Z;Corbett B;Gocalinska A;Pelucchi E;Chen W;Ryan KM;Khan P;Silien C;Xu H;Liu N;
(2020) Direct visualization of phase-matched efficient second harmonic and broadband sum frequency generation in hybrid plasmonic nanostructures.
In Light-Science & Applications;
DOI: 10.1038/s41377-020-00414-4

2017

Direct Synthesis of Alloyed Si1-xGex Nanowires for Performance-Tunable Lithium Ion Battery Anodes
Stokes, K,Geaney, H,Flynn, G,Sheehan, M,Kennedy, T,Ryan, KM
(2017) Direct Synthesis of Alloyed Si1-xGex Nanowires for Performance-Tunable Lithium Ion Battery Anodes
In Acs Nano; pp. 10088-10096
DOI: 10.1021/acsnano.7b04523

2017

Behavior of Germanium and Silicon Nanowire Anodes with Ionic Liquid Electrolytes
Kim, GT,Kennedy, T,Brandon, M,Geaney, H,Ryan, KM,Passerini, S,Appetecchi, GB
(2017) Behavior of Germanium and Silicon Nanowire Anodes with Ionic Liquid Electrolytes
In Acs Nano; pp. 5933-5943
DOI: 10.1021/acsnano.7b01705

2017

Assembling Ordered Nanorod Superstructures and Their Application as Microcavity Lasers
Liu, P,Singh, S,Guo, YN,Wang, JJ,Xu, HX,Silien, C,Liu, N,Ryan, KM
(2017) Assembling Ordered Nanorod Superstructures and Their Application as Microcavity Lasers
In Scientific Reports;
DOI: 10.1038/srep43884
[ULIR]

2017

Temperature controlled shape evolution of iron oxide nanostructures in HMTA media
Zhao, B,Ryan, KM,O'Reilly, E,McCarthy, C
(2017) Temperature controlled shape evolution of iron oxide nanostructures in HMTA media
In Rsc Advances; pp. 26328-26334
DOI: 10.1039/c7ra03603e
[ULIR]

2017

Insight into the Role of Additives in Controlling Polymorphic Outcome: A CO2-Antisolvent Crystallization Process of Carbamazepine
Padrela, L,Zeglinski, J,Ryan, KM
(2017) Insight into the Role of Additives in Controlling Polymorphic Outcome: A CO2-Antisolvent Crystallization Process of Carbamazepine
In Crystal Growth & Design; pp. 4544-4553
DOI: 10.1021/acs.cgd.7b00163
[ULIR]

2017

Understanding the influence of electrolyte additives on the electrochemical performance and morphology evolution of silicon nanowire based lithium-ion battery anodes
Kennedy, T,Brandon, M,Laffir, F,Ryan, KM
(2017) Understanding the influence of electrolyte additives on the electrochemical performance and morphology evolution of silicon nanowire based lithium-ion battery anodes
In Journal Of Power Sources; pp. 601-610
DOI: 10.1016/j.jpowsour.2017.05.093

2017

The selective synthesis of nickel germanide nanowires and nickel germanide seeded germanium nanowires within a solvent vapour growth system
Sheehan, M,Guo, YN,Flynn, G,Geaney, H,Ryan, KM
(2017) The selective synthesis of nickel germanide nanowires and nickel germanide seeded germanium nanowires within a solvent vapour growth system
In Crystengcomm; pp. 2072-2078
DOI: 10.1039/c7ce00268h

2017

Solution synthesis of lead seeded germanium nanowires and branched nanowire networks and their application as Li-ion battery anodes
Flynn, G,Palaniappan, K,Sheehan, M,Kennedy, T,Ryan, KM
(2017) Solution synthesis of lead seeded germanium nanowires and branched nanowire networks and their application as Li-ion battery anodes
In Nanotechnology;
DOI: 10.1088/1361-6528/aa72c7
[ULIR]

2016

Complete assembly of Cu2ZnSnS4 (CZTS) nanorods at substrate interfaces using a combination of self and directed organisation
Liu, P,Singh, S,Bree, G,Ryan, KM
(2016) Complete assembly of Cu2ZnSnS4 (CZTS) nanorods at substrate interfaces using a combination of self and directed organisation
In Chemical Communications; pp. 11587-11590
DOI: 10.1039/c6cc06417e

2016

Formation of reworkable nanocomposite adhesives by dielectric heating of epoxy resin embedded Fe3O4 hollow spheres
Zhao, B,Hardiman, M,Ryan, KM,O'Reilly, E,McCarthy, C
(2016) Formation of reworkable nanocomposite adhesives by dielectric heating of epoxy resin embedded Fe3O4 hollow spheres
In Crystengcomm; pp. 6096-6101
DOI: 10.1039/c6ce01359g
[ULIR]

2016

Colloidal synthesis of Cu2SnSe3 nanocrystals with structure induced shape evolution
Wang, JJ,Ryan, KM
(2016) Colloidal synthesis of Cu2SnSe3 nanocrystals with structure induced shape evolution
In Crystengcomm; pp. 3161-3169
DOI: 10.1039/c6ce00251j

2016

Solvent Vapor Growth of Axial Heterostructure Nanowires with Multiple Alternating Segments of Silicon and Germanium
Flynn, G,Ramasse, QM,Ryan, KM
(2016) Solvent Vapor Growth of Axial Heterostructure Nanowires with Multiple Alternating Segments of Silicon and Germanium
In Nano Letters; pp. 374-380
DOI: 10.1021/acs.nanolett.5b03950
[ULIR]

2016

Selective Phase Transformation of Wurtzite Cu2ZnSn(SSe)(4) (CZTSSe) Nanocrystals into Zinc-Blende and Kesterite Phases by Solution and Solid State Transformations
Singh, S,Brandon, M,Liu, P,Laffir, F,Redington, W,Ryan, KM
(2016) Selective Phase Transformation of Wurtzite Cu2ZnSn(SSe)(4) (CZTSSe) Nanocrystals into Zinc-Blende and Kesterite Phases by Solution and Solid State Transformations
In Chemistry Of Materials; pp. 5055-5062
DOI: 10.1021/acs.chemmater.6b01845

2016

Heteroaggregation assisted wet synthesis of core-shell silver-silica-cadmium selenide nanowires
Pita, IA,Singh, S,Silien, C,Ryan, KM,Liu, N
(2016) Heteroaggregation assisted wet synthesis of core-shell silver-silica-cadmium selenide nanowires
In Nanoscale; pp. 1200-1209
DOI: 10.1039/c5nr06615h

2016

Advances in the Application of Silicon and Germanium Nanowires for High-Performance Lithium-Ion Batteries
Kennedy, T,Brandon, M,Ryan, KM
(2016) Advances in the Application of Silicon and Germanium Nanowires for High-Performance Lithium-Ion Batteries
In Advanced Materials; pp. 5696-5704
DOI: 10.1002/adma.201503978

2015

Pd Clusters Supported on Amorphous, Low-Porosity Carbon Spheres for Hydrogen Production from Formic Acid
Bulushev, DA,Bulusheva, LG,Beloshapkin, S,O'Connor, T,Okotrub, AV,Ryan, KM
(2015) Pd Clusters Supported on Amorphous, Low-Porosity Carbon Spheres for Hydrogen Production from Formic Acid
In ACS Applied Materials & Interfaces; pp. 8719-8726
DOI: 10.1021/acsami.5b00983

2015

A facile phosphine-free colloidal synthesis of Cu2SnS3 and Cu2ZnSnS4 nanorods with a controllable aspect ratio
Wang, JJ,Liu, P,Ryan, KM
(2015) A facile phosphine-free colloidal synthesis of Cu2SnS3 and Cu2ZnSnS4 nanorods with a controllable aspect ratio
In Chemical Communications; pp. 13810-13813
DOI: 10.1039/c5cc04979b

2015

Complete study of the composition and shape evolution in the synthesis of Cu2ZnSnS4 (CZTS) semiconductor nanocrystals
Coughlan, C,Ryan, KM
(2015) Complete study of the composition and shape evolution in the synthesis of Cu2ZnSnS4 (CZTS) semiconductor nanocrystals
In Crystengcomm; pp. 6914-6922
DOI: 10.1039/c5ce00497g
[ULIR]

2015

Nanowire Heterostructures Comprising Germanium Stems and Silicon Branches as High-Capacity Li-Ion Anodes with Tunable Rate Capability
Kennedy, T,Bezuidenhout, M,Palaniappan, K,Stokes, K,Brandon, M,Ryan, KM
(2015) Nanowire Heterostructures Comprising Germanium Stems and Silicon Branches as High-Capacity Li-Ion Anodes with Tunable Rate Capability
In Acs Nano; pp. 7456-7465
DOI: 10.1021/acsnano.5b02528

2015

Synthesis of silicon-germanium axial nanowire heterostructures in a solvent vapor growth system using indium and tin catalysts
Mullane, E,Geaney, H,Ryan, KM
(2015) Synthesis of silicon-germanium axial nanowire heterostructures in a solvent vapor growth system using indium and tin catalysts
In Physical chemistry chemical physics : PCCP; pp. 6919-6924
DOI: 10.1039/c4cp04450a
[ULIR]

2015

Colloidal Cu2ZnSn(SSe)(4) (CZTSSe) Nanocrystals: Shape and Crystal Phase Control to Form Dots, Arrows, Ellipsoids, and Rods
Singh, S,Liu, P,Singh, A,Coughlan, C,Wang, JJ,Lusi, M,Ryan, KM
(2015) Colloidal Cu2ZnSn(SSe)(4) (CZTSSe) Nanocrystals: Shape and Crystal Phase Control to Form Dots, Arrows, Ellipsoids, and Rods
In Chemistry Of Materials; pp. 4742-4748
DOI: 10.1021/acs.chemmater.5b01399

2015

Insights into the Electrophoretic Deposition of Colloidal II-VI Nanorods: Optimization for Vertically and Horizontally Aligned Assemblies
Gill, E,Liu, P,Ryan, KM
(2015) Insights into the Electrophoretic Deposition of Colloidal II-VI Nanorods: Optimization for Vertically and Horizontally Aligned Assemblies
In Journal Of The Electrochemical Society; pp. 3019-3024
DOI: 10.1149/2.0131511jes

2015

Solution Synthesis and Assembly of Wurtzite-Derived Cu-In-Zn-S Nanorods with Tunable Composition and Band Gap
Singh, A,Coughlan, C,Milliron, DJ,Ryan, KM
(2015) Solution Synthesis and Assembly of Wurtzite-Derived Cu-In-Zn-S Nanorods with Tunable Composition and Band Gap
In Chemistry Of Materials; pp. 1517-1523
DOI: 10.1021/cm5035613

2015

Occurrence of Polytypism in Compound Colloidal Metal Chalcogenide Nanocrystals, Opportunities, and Challenges
Singh, S,Ryan, KM
(2015) Occurrence of Polytypism in Compound Colloidal Metal Chalcogenide Nanocrystals, Opportunities, and Challenges
In Journal Of Physical Chemistry Letters; pp. 3141-3148
DOI: 10.1021/acs.jpclett.5b01311

2015

High density and patternable growth of silicon, germanium and alloyed SiGe nanowires by a rapid anneal protocol
Bezuidenhout, M,Kennedy, T,Belochapkine, S,Guo, Y,Mullane, E,Kiely, PA,Ryan, KM
(2015) High density and patternable growth of silicon, germanium and alloyed SiGe nanowires by a rapid anneal protocol
In Journal Of Materials Chemistry C; pp. 7455-7462
DOI: 10.1039/c5tc01389e

2014

High-Performance Germanium Nanowire-Based Lithium-Ion Battery Anodes Extending over 1000 Cycles Through in Situ Formation of a Continuous Porous Network
Kennedy, T,Mullane, E,Geaney, H,Osiak, M,O'Dwyer, C,Ryan, KM
(2014) High-Performance Germanium Nanowire-Based Lithium-Ion Battery Anodes Extending over 1000 Cycles Through in Situ Formation of a Continuous Porous Network
In Nano Letters; pp. 716-723
DOI: 10.1021/nl403979s
[ULIR]

2014

Promoting cell proliferation using water dispersible germanium nanowires.
Bezuidenhout M, Liu P, Singh S, Kiely M, Ryan KM, Kiely PA
(2014) Promoting cell proliferation using water dispersible germanium nanowires.
In Plos One;
DOI: 10.1371/journal.pone.0108006
[ULIR]

2014

Assembly of binary, ternary and quaternary compound semiconductor nanorods: From local to device scale ordering influenced by surface charge
Ryan, KM,Singh, S,Liu, P,Singh, A
(2014) Assembly of binary, ternary and quaternary compound semiconductor nanorods: From local to device scale ordering influenced by surface charge
In Crystengcomm; pp. 9446-9454
DOI: 10.1039/c4ce00679h
[ULIR]

2014

A Rapid, Solvent-Free Protocol for the Synthesis of Germanium Nanowire Lithium-Ion Anodes with a Long Cycle Life and High Rate Capability
Mullane, E,Kennedy, T,Geaney, H,Ryan, KM
(2014) A Rapid, Solvent-Free Protocol for the Synthesis of Germanium Nanowire Lithium-Ion Anodes with a Long Cycle Life and High Rate Capability
In ACS Applied Materials & Interfaces; pp. 18800-18807
DOI: 10.1021/am5045168

2014

Complete Colloidal Synthesis of Cu2SnSe3 Nanocrystals with Crystal Phase and Shape Control
Wang, JJ,Liu, P,Seaton, CC,Ryan, KM
(2014) Complete Colloidal Synthesis of Cu2SnSe3 Nanocrystals with Crystal Phase and Shape Control
In Journal of the American Chemical Society; pp. 7954-7960
DOI: 10.1021/ja501591n

2014

Phase-transition-driven growth of compound semiconductor crystals from ordered metastable nanorods
Mainz, R,Singh, A,Levcenko, S,Klaus, M,Genzel, C,Ryan, KM,Unold, T
(2014) Phase-transition-driven growth of compound semiconductor crystals from ordered metastable nanorods
In Nature Communications;
DOI: 10.1038/ncomms4133
[ULIR]

2013

Epitaxial growth of visible to infra-red transparent conducting In2O3 nanodot dispersions and reversible charge storage as a Li-ion battery anode
Osiak, M,Khunsin, W,Armstrong, E,Kennedy, T,Torres, CMS,Ryan, KM,O'Dwyer, C
(2013) Epitaxial growth of visible to infra-red transparent conducting In2O3 nanodot dispersions and reversible charge storage as a Li-ion battery anode
In Nanotechnology;
DOI: 10.1088/0957-4484/24/6/065401
[ULIR]

2013

Crystallization of Semiconductor Nanorods into Perfectly Faceted Hexagonal Superstructures
Singh, A,Ryan, KM
(2013) Crystallization of Semiconductor Nanorods into Perfectly Faceted Hexagonal Superstructures
In Particle & Particle Systems Characterization; pp. 624-629
DOI: 10.1002/ppsc.201300008

2013

Compositionally Tunable Photoluminescence Emission in Cu2ZnSn(S1-xSex)(4) Nanocrystals
Singh, A,Singh, S,Levcenko, S,Unold, T,Laffir, F,Ryan, KM
(2013) Compositionally Tunable Photoluminescence Emission in Cu2ZnSn(S1-xSex)(4) Nanocrystals
In Angewandte Chemie-International Edition; pp. 9120-9124
DOI: 10.1002/anie.201302867

2013

Synthesis of Tin Catalyzed Silicon and Germanium Nanowires in a Solvent-Vapor System and Optimization of the Seed/Nanowire Interface for Dual Lithium Cycling
Mullane, E,Kennedy, T,Geaney, H,Dickinson, C,Ryan, KM
(2013) Synthesis of Tin Catalyzed Silicon and Germanium Nanowires in a Solvent-Vapor System and Optimization of the Seed/Nanowire Interface for Dual Lithium Cycling
In Chemistry Of Materials; pp. 1816-1822
DOI: 10.1021/cm400367v

2013

Highly Ordered Nanorod Assemblies Extending over Device Scale Areas and in Controlled Multilayers by Electrophoretic Deposition
Singh, A,English, NJ,Ryan, KM
(2013) Highly Ordered Nanorod Assemblies Extending over Device Scale Areas and in Controlled Multilayers by Electrophoretic Deposition
In Journal Of Physical Chemistry B; pp. 1608-1615
DOI: 10.1021/jp305184n

2013

Solution phase synthesis of silicon and germanium nanowires
Geaney, H,Mullane, E,Ryan, KM
(2013) Solution phase synthesis of silicon and germanium nanowires
In Journal Of Materials Chemistry C; pp. 4996-5007
DOI: 10.1039/c3tc31123f

2013

Atomically Abrupt Silicon-Germanium Axial Heterostructure Nanowires Synthesized in a Solvent Vapor Growth System
Geaney, H,Mullane, E,Ramasse, QM,Ryan, KM
(2013) Atomically Abrupt Silicon-Germanium Axial Heterostructure Nanowires Synthesized in a Solvent Vapor Growth System
In Nano Letters; pp. 1675-1680
DOI: 10.1021/nl400146u

2013

Fabrication of Noble metal-semiconductor hybrid nanostructures using phase transfer
Bala, T,Singh, A,Sanyal, A,O'Sullivan, C,Laffir, F,Coughlan, C,Ryan, KM
(2013) Fabrication of Noble metal-semiconductor hybrid nanostructures using phase transfer
In Nano Research; pp. 121-130
DOI: 10.1007/s12274-013-0287-9

2013

Colloidal synthesis of homogeneously alloyed CdSexS1-x nanorods with compositionally tunable photoluminescence
Singh, S,Singh, A,Palaniappan, K,Ryan, KM
(2013) Colloidal synthesis of homogeneously alloyed CdSexS1-x nanorods with compositionally tunable photoluminescence
In Chemical Communications; pp. 10293-10295
DOI: 10.1039/c3cc45497e

2013

Core-Shell Tin Oxide, Indium Oxide, and Indium Tin Oxide Nanoparticles on Silicon with Tunable Dispersion: Electrochemical and Structural Characteristics as a Hybrid Li-Ion Battery Anode
Osiak, MJ,Armstrong, E,Kennedy, T,Torres, CMS,Ryan, KM,O'Dwyer, C
(2013) Core-Shell Tin Oxide, Indium Oxide, and Indium Tin Oxide Nanoparticles on Silicon with Tunable Dispersion: Electrochemical and Structural Characteristics as a Hybrid Li-Ion Battery Anode
In ACS Applied Materials & Interfaces; pp. 8195-8202
DOI: 10.1021/am4023169

2013

Colloidal Synthesis of Cu2SnSe3 Tetrapod Nanocrystals
Wang, JJ,Singh, A,Liu, P,Singh, S,Coughlan, C,Guo, YN,Ryan, KM
(2013) Colloidal Synthesis of Cu2SnSe3 Tetrapod Nanocrystals
In Journal Of The American Chemical Society; pp. 7835-7838
DOI: 10.1021/ja403083p

2013

Systematic Study into the Synthesis and Shape Development in Colloidal CuInxGa1-xS2 Nanocrystals
Coughlan, C,Singh, A,Ryan, KM
(2013) Systematic Study into the Synthesis and Shape Development in Colloidal CuInxGa1-xS2 Nanocrystals
In Chemistry Of Materials; pp. 653-661
DOI: 10.1021/cm302597x

2012

Colloidal Synthesis of Wurtzite Cu2ZnSnS4 Nanorods and Their Perpendicular Assembly
Singh, A,Geaney, H,Laffir, F,Ryan, KM
(2012) Colloidal Synthesis of Wurtzite Cu2ZnSnS4 Nanorods and Their Perpendicular Assembly
In Journal Of The American Chemical Society; pp. 2910-2913
DOI: 10.1021/ja2112146
[ULIR]

2012

Growth of Crystalline Copper Silicide Nanowires in High Yield within a High Boiling Point Solvent System
Geaney, H,Dickinson, C,O'Dwyer, C,Mullane, E,Singh, A,Ryan, KM
(2012) Growth of Crystalline Copper Silicide Nanowires in High Yield within a High Boiling Point Solvent System
In Chemistry Of Materials; pp. 4319-4325
DOI: 10.1021/cm302066n
[ULIR]

2012

Size controlled growth of germanium nanorods and nanowires by solution pyrolysis directly on a substrate
Mullane, E,Geaney, H,Ryan, KM
(2012) Size controlled growth of germanium nanorods and nanowires by solution pyrolysis directly on a substrate
In Chemical Communications; pp. 5446-5448
DOI: 10.1039/c2cc31219k

2012

High Density Growth of Indium seeded Silicon Nanowires in the Vapor phase of a High Boiling Point Solvent
Geaney, H,Kennedy, T,Dickinson, C,Mullane, E,Singh, A,Laffir, F,Ryan, KM
(2012) High Density Growth of Indium seeded Silicon Nanowires in the Vapor phase of a High Boiling Point Solvent
In Chemistry Of Materials; pp. 2204-2210
DOI: 10.1021/cm301023j

2012

Assembly of CuIn1-xGaxS2 Nanorods into Highly Ordered 2D and 3D Superstructures
Singh, A,Coughlan, C,Laffir, F,Ryan, KM
(2012) Assembly of CuIn1-xGaxS2 Nanorods into Highly Ordered 2D and 3D Superstructures
In Acs Nano; pp. 6977-6983
DOI: 10.1021/nn301999b

2012

Insight into the 3D Architecture and Quasicrystal Symmetry of Multilayer Nanorod Assemblies from Moire Interference Patterns
Singh, A,Dickinson, C,Ryan, KM
(2012) Insight into the 3D Architecture and Quasicrystal Symmetry of Multilayer Nanorod Assemblies from Moire Interference Patterns
In Acs Nano; pp. 3339-3345
DOI: 10.1021/nn300331x

2012

Controlled semiconductor nanorod assembly from solution: influence of concentration, charge and solvent nature
Singh, A; Gunning, RD; Ahmed, S; Barrett, CA; English, NJ; Garate, JA; Ryan, KM
(2012) Controlled semiconductor nanorod assembly from solution: influence of concentration, charge and solvent nature
In Journal Of Materials Chemistry; pp. 1562-1569
DOI: 10.1039/c1jm14382d
[ULIR]

2011

Perpendicular growth of catalyst-free germanium nanowire arrays
Barrett, CA; Geaney, H; Gunning, RD; Laffir, FR; Ryan, KM
(2011) Perpendicular growth of catalyst-free germanium nanowire arrays
In Chemical Communications; pp. 3843-3845
DOI: 10.1039/c0cc05202g

2011

A facile spin-cast route for cation exchange of multilayer perpendicularly-aligned nanorod assemblies
Kelly, D; Singh, A; Barrett, CA; O'Sullivan, C; Coughlan, C; Laffir, FR; O'Dwyer, C; Ryan, KM
(2011) A facile spin-cast route for cation exchange of multilayer perpendicularly-aligned nanorod assemblies
In Nanoscale; pp. 4580-4583
DOI: 10.1039/c1nr11031d

2011

Silver tip formation on colloidal CdSe nanorods by a facile phase transfer protocol
Bala, T; Sanyal, A; Singh, A; Kelly, D; O'Sullivan, C; Laffir, F; Ryan, KM
(2011) Silver tip formation on colloidal CdSe nanorods by a facile phase transfer protocol
In Journal Of Materials Chemistry; pp. 6815-6820
DOI: 10.1039/c0jm04324a

2011

High Density Germanium Nanowire Growth Directly from Copper Foil by Self-Induced Solid Seeding
Geaney, H; Dickinson, C; Barrett, CA; Ryan, KM
(2011) High Density Germanium Nanowire Growth Directly from Copper Foil by Self-Induced Solid Seeding
In Chemistry Of Materials; pp. 4838-4843
DOI: 10.1021/cm202276m

2011

Protein immobilisation on perpendicularly aligned gold tipped nanorod assemblies
O'Sullivan, C; Crilly, S; Laffir, FR; Singh, A; Magner, E; Ryan, KM
(2011) Protein immobilisation on perpendicularly aligned gold tipped nanorod assemblies
In Chemical Communications; pp. 2655-2657
DOI: 10.1039/c0cc05182a

2011

Role of Defects and Growth Directions in the Formation of Periodically Twinned and Kinked Unseeded Germanium Nanowires
Geaney, H; Dickinson, C; Weng, WH; Kiely, CJ; Barrett, CA; Gunning, RD; Ryan, KM
(2011) Role of Defects and Growth Directions in the Formation of Periodically Twinned and Kinked Unseeded Germanium Nanowires
In Crystal Growth & Design; pp. 3266-3272
DOI: 10.1021/cg200510y

2011

Electrophoretic Deposition of Poly(3-decylthiophene) onto Gold-Mounted Cadmium Selenide Nanorods
Garate, JA; English, NJ; Singh, A; Ryan, KM; Mooney, DA; MacElroy, JMD
(2011) Electrophoretic Deposition of Poly(3-decylthiophene) onto Gold-Mounted Cadmium Selenide Nanorods
In Langmuir; pp. 13506-13513
DOI: 10.1021/la203227k

2011

An ac susceptibility study in capped Ni/Ni(OH)(2) core-shell nanoassemblies: dual peak observations
Godsell, JF; Bala, T; Ryan, KM; Roy, S
(2011) An ac susceptibility study in capped Ni/Ni(OH)(2) core-shell nanoassemblies: dual peak observations
In Journal Of Physics D-Applied Physics;
DOI: 10.1088/0022-3727/44/32/325004
[ULIR]

2011

Complete Synthesis of Germanium Nanocrystal Encrusted Carbon Colloids in Supercritical CO2 and their Superhydrophobic Properties
Barrett, CA; Singh, A; Murphy, JA; O'Sullivan, C; Buckley, DN; Ryan, KM
(2011) Complete Synthesis of Germanium Nanocrystal Encrusted Carbon Colloids in Supercritical CO2 and their Superhydrophobic Properties
In Langmuir; pp. 11166-11173
DOI: 10.1021/la2020868

2010

Directing semiconductor nanorod assembly into 1D or 2D supercrystals by altering the surface charge
Singh, A; Gunning, RD; Sanyal, A; Ryan, KM
(2010) Directing semiconductor nanorod assembly into 1D or 2D supercrystals by altering the surface charge
In Chemical Communications; pp. 7193-7195
DOI: 10.1039/c0cc01455a

2010

The Role of Texturing and Densification on Optical Transmittance of Hydroxyapatite Ceramics
Gandhi, AA; Gunning, RD; Ryan, KM; Tofail, SAM
(2010) The Role of Texturing and Densification on Optical Transmittance of Hydroxyapatite Ceramics
In Journal Of The American Ceramic Society; pp. 3773-3777
DOI: 10.1111/j.1551-2916.2010.03925.x

2010

Size controlled gold tip growth onto II-VI nanorods
O'Sullivan, C; Gunning, RD; Barrett, CA; Singh, A; Ryan, KM
(2010) Size controlled gold tip growth onto II-VI nanorods
In Journal Of Materials Chemistry; pp. 7875-7880
DOI: 10.1039/c0jm01689f

2010

A multi-rate kinetic model for spontaneous oriented attachment of CdS nanorods
Gunning, RD; O'Sullivan, C; Ryan, KM
(2010) A multi-rate kinetic model for spontaneous oriented attachment of CdS nanorods
In Physical Chemistry Chemical Physics; pp. 12430-12435
DOI: 10.1039/c0cp00196a

2010

Metal surface nucleated supercritical fluid-solid-solid growth of Si and Ge/SiO(x) core-shell nanowires
Barrett, CA; Gunning, RD; Hantschel, T; Arstila, K; O'Sullivan, C; Geaney, H; Ryan, KM
(2010) Metal surface nucleated supercritical fluid-solid-solid growth of Si and Ge/SiO(x) core-shell nanowires
In Journal Of Materials Chemistry; pp. 135-144
DOI: 10.1039/b914950c

2009

Water dispersible semiconductor nanorod assemblies via a facile phase transfer and their application as fluorescent biomarkers
Sanyal, A; Bala, T; Ahmed, S; Singh, A; Piterina, AV; McGloughlin, TM; Laffir, FR; Ryan, KM
(2009) Water dispersible semiconductor nanorod assemblies via a facile phase transfer and their application as fluorescent biomarkers
In Journal Of Materials Chemistry; pp. 8974-8981
DOI: 10.1039/b913476j

2009

The evolution of pseudo-spherical silicon nanocrystals to tetrahedra, mediated by phosphonic acid surfactants
Barrett, CA; Dickinson, C; Ahmed, S; Hantschel, T; Arstila, K; Ryan, KM
(2009) The evolution of pseudo-spherical silicon nanocrystals to tetrahedra, mediated by phosphonic acid surfactants
In Nanotechnology;
DOI: 10.1088/0957-4484/20/27/275605

2009

Spontaneous Room Temperature Elongation of CdS and Ag(2)S Nanorods via Oriented Attachment
O'Sullivan, C; Gunning, RD; Sanyal, A; Barrett, CA; Geaney, H; Laffir, FR; Ahmed, S; Ryan, KM
(2009) Spontaneous Room Temperature Elongation of CdS and Ag(2)S Nanorods via Oriented Attachment
In Journal Of The American Chemical Society; pp. 12250-12257
DOI: 10.1021/ja902860t

2009

Centimetre scale assembly of vertically aligned and close packed semiconductor nanorods from solution
Ahmed, S; Ryan, KM
(2009) Centimetre scale assembly of vertically aligned and close packed semiconductor nanorods from solution
In Chemical Communications; pp. 6421-6423
DOI: 10.1039/b914478a

2009

Block copolymer mediated stabilization of sub-5 nm superparamagnetic nickel nanoparticles in an aqueous medium
Bala, T; Gunning, RD; Venkatesan, M; Godsell, JF; Roy, S; Ryan, KM
(2009) Block copolymer mediated stabilization of sub-5 nm superparamagnetic nickel nanoparticles in an aqueous medium
In Nanotechnology;
DOI: 10.1088/0957-4484/20/41/415603

2008

Gold tip formation on perpendicularly aligned semiconductor nanorod assemblies
O'Sullivan, C; Ahmed, S; Ryan, KM
(2008) Gold tip formation on perpendicularly aligned semiconductor nanorod assemblies
In Journal Of Materials Chemistry; pp. 5218-5222
DOI: 10.1039/b810543j

2008

Close-Packed Gold-Nanocrystal Assemblies Deposited with Complete Selectivity into Lithographic Trenches
Ahmed, S; Ryan, KM
(2008) Close-Packed Gold-Nanocrystal Assemblies Deposited with Complete Selectivity into Lithographic Trenches
In Advanced Materials; pp. 4745-+
DOI: 10.1002/adma.200801007

2007

Self-assembly of vertically aligned nanorod supercrystals using highly oriented pyrolytic graphite
Ahmed, S; Ryan, KM
(2007) Self-assembly of vertically aligned nanorod supercrystals using highly oriented pyrolytic graphite
In Nano Letters; pp. 2480-2485
DOI: 10.1021/nl071263v

2006

Electric Field Assisted Assembly of Perpendicular Oriented Nanorod Superlattices
Ryan, KM; Mastroianni, A; Stancil, KA; Liu, H; Alivisatos, AP
(2006) Electric Field Assisted Assembly of Perpendicular Oriented Nanorod Superlattices
In Nano Letters; pp. 1479-1482

2006

Electric-field-assisted assembly of perpendicularly oriented nanorod superlattices
Ryan K.M., Mastroianni A., Stancil K.A., Liu H., Alivisatos A.P.
(2006) Electric-field-assisted assembly of perpendicularly oriented nanorod superlattices
In Nano Letters; pp. 1479-1482
DOI: 10.1021/nl060866o

2005

Compact Strain-sensitive flexible photonic crystals for sensors
Pursanien, OL; Baumberg, JJ; Ryan, KM; Bauer, J; Winkler, H; Viel, B; Ruhl, T
(2005) Compact Strain-sensitive flexible photonic crystals for sensors
In Applied Physics Letters; pp. 101902-
[ULIR]

2005

Periodic Binary Si:Ti, Si:Al Mixed Macroporous Oxides with Ultra-High Heteroatom loading: A Facile Sol-Gel Approach
Hant, SH; Attard, GA; Riddle, R; Ryan, KM
(2005) Periodic Binary Si:Ti, Si:Al Mixed Macroporous Oxides with Ultra-High Heteroatom loading: A Facile Sol-Gel Approach
In Chemistry Of Materials; pp. 1434-

2005

Controlling Morphological, Orientational and Material Properties of Mesoporous Aluminosilicate Films
Ryan, KM; Lyons, D M Holmes, J D Farrell, R Brennan, E Morris, MA;
(2005) Controlling Morphological, Orientational and Material Properties of Mesoporous Aluminosilicate Films
In Studies In Surface Science And Catalysis; pp. 303-314

2004

The Synthesis of Matrices of Embedded Semiconductor Nanowires
Ziegler, KJ; Ryan, KM; Rice, R; Crowley, TA; Erts, D; Olin, H; Patterson, J; Spalding, TR; Holmes, JD; Morris, MA
(2004) The Synthesis of Matrices of Embedded Semiconductor Nanowires
In Faraday Special Discussions Of The Chemical Soc.; pp. 311-326

2004

Conductive films of ordered nanowire arrays
Ziegler, K J Polyakov, B Kulharni, J Ryan, KM; Morris, MA; Erts, D Holmes, J D
(2004) Conductive films of ordered nanowire arrays
In J. Materials Chemistry; pp. 585-589
[ULIR]

2004

Pore expansion in mesoporous silicas using supercritical carbon dioxide
Hanrahan, JP; Copley, MP; Ryan, KM; Morris, MA; Holmes, JD
(2004) Pore expansion in mesoporous silicas using supercritical carbon dioxide
In Chemistry Of Materials; pp. 424-427
[ULIR]

2003

Three-dimensional architectures of ultra-high density semiconductor nanowires deposited on chip
Ryan, KM; Erts, D; Olin, H; Morris, MA; Holmes, JD
(2003) Three-dimensional architectures of ultra-high density semiconductor nanowires deposited on chip
In J. Am. Chem.Soc.; pp. 6284-6288

2003

Supercritical fluid preparation of copper nanotubes and nanowires using mesoporous templates
Ziegler, KJ; Harrington, PA; Ryan, KM; Crowley, TA; Holmes, JD; Morris, MA
(2003) Supercritical fluid preparation of copper nanotubes and nanowires using mesoporous templates
In Journal Of Physics-Condensed Matter; pp. 8303-8314

2003

Measurements of the lattice constant of ceria when doped with lanthana and praseodymia-the possibility of local defect ordering and the observation of extensive phase separation
Ryan, KM; McGrath, JP; Farrell, RA; O'Neill, WM; Barnes, CJ; Morris, MA
(2003) Measurements of the lattice constant of ceria when doped with lanthana and praseodymia-the possibility of local defect ordering and the observation of extensive phase separation
In Journal Of Physics-Condensed Matter; pp. 49-58

2002

The use of templated mesoporous materials as templates for the development of ordered arrangements of nanowires and nanorods of electronically important materials
Ryan, KM; Holmes, JD; Crowley, TA; Morris, MA
(2002) The use of templated mesoporous materials as templates for the development of ordered arrangements of nanowires and nanorods of electronically important materials
In Studies In Surface Science And Catalysis; pp. 337-343

2002

Control of pore morphology in mesoporous silicas synthesised from triblock copolymer templates
Ryan, KM; Coleman, NRB; Lyons, DM; Hanrahan, JP; Spalding, TR; Morris, MA; Steytler, DC; Heenan, RK; Holmes, JD
(2002) Control of pore morphology in mesoporous silicas synthesised from triblock copolymer templates
In Langmuir; pp. 4996-5001

2002

Tailoring the Optical Properties of nanowires through strain
Lyons, DM; Ryan, KM; Morris, MA; Holmes, JD
(2002) Tailoring the Optical Properties of nanowires through strain
In Nano Letters; pp. 811-816

2002

The preparation of ordered mesoporous ceria with advanced stability
Lyons, DM; Morris, MA; Ryan, KM
(2002) The preparation of ordered mesoporous ceria with advanced stability
In J. Materials Chemistry; pp. 811-816

2001

The formation of dimensionally ordered germanium nanowires withing mesoporous silicas
Coleman, NRB; Ryan, KM; Spalding, TR; Holmes, JD; Morris, MA
(2001) The formation of dimensionally ordered germanium nanowires withing mesoporous silicas
In Chemical Physics Letters; pp. 1-6

2001

Synthesis and Characterisation of dimensionally ordered semiconductor nanowires within mesoporous silica
Coleman, NRB; Sullivan, N; Ryan, KM; Crowley, TA; Spalding, TR; Steytler, DC; Morris, MA; Holmes, JD
(2001) Synthesis and Characterisation of dimensionally ordered semiconductor nanowires within mesoporous silica
In J. Am. Chem.Soc.; pp. 7010-7016

Conference Publications

2015

GREENLION Project: Advanced Manufacturing Processes for Low Cost Greener Li-Ion Batteries
de Meatza, I,Miguel, O,Cendoya, I,Kim, GT,Loffler, N,Laszczynski, N,Passerini, S,Schweizer, PM,Castiglione, F,Mele, A,Appetecchi, GB,Moreno, M,Brandon, M,Kennedy, T,Mullane, E,Ryan, KM,Cantero, I,Olive, M,Briec, E,Muller, B
(2015) GREENLION Project: Advanced Manufacturing Processes for Low Cost Greener Li-Ion Batteries
In Electric Vehicle Batteries: Moving From Research Towards Innovation: Reports Of The Ppp European Green Vehicles Initiative; pp. 45-60
DOI: 10.1007/978-3-319-12706-4_4

2013

Water Dispersible Semiconductor Nanorod Assemblies Via a Facile Phase Transfer and Their Application as Fluorescent Biomarkers
Sanyal, A,Ryan, KM,Giri, PK,Goswami, DK,Perumal, A
(2013) Water Dispersible Semiconductor Nanorod Assemblies Via a Facile Phase Transfer and Their Application as Fluorescent Biomarkers
In Proceedings Of The 25th International Conference On The Physics Of Semiconductors, Pts I And Ii; pp. 95-110
DOI: 10.1007/978-3-642-34216-5_9

2013

Silver Tip Formation on Colloidal CdSe Nanorods by a Facile Phase Transfer Protocol
Bala, T,Ryan, KM,Giri, PK,Goswami, DK,Perumal, A
(2013) Silver Tip Formation on Colloidal CdSe Nanorods by a Facile Phase Transfer Protocol
In Proceedings Of The 25th International Conference On The Physics Of Semiconductors, Pts I And Ii; pp. 21-31
DOI: 10.1007/978-3-642-34216-5_2

2009

STATE-OF-THE-ART PROGRAM ON COMPOUND SEMICONDUCTORS 51 (SOTAPOCS 51) -AND- WIDE-BANDGAP SEMICONDUCTOR MATERIALS AND DEVICES 10
O'Sullivan, C,Gunning, RD,Barrett, CA,Singh, A,Geaney, H,Sanyal, A,Ahmed, S,Bala, T,Ryan, KM,Stokes, E,Goldhahn, R,Hunter, G,ODwyer, C,Ambacher, O,Huang, J,Kohn, E,Overberg, ME
(2009) STATE-OF-THE-ART PROGRAM ON COMPOUND SEMICONDUCTORS 51 (SOTAPOCS 51) -AND- WIDE-BANDGAP SEMICONDUCTOR MATERIALS AND DEVICES 10
In Ecs Transactions; pp. 17-29
DOI: 10.1149/1.3238202

2009

ECS Transactions
O'Sullivan C., Gunning R.D., Barrett C.A., Singh A., Geaney H., Sanyal A., Ahmed S., Bala T., Ryan K.M.
(2009) ECS Transactions
In Ecs Transactions; pp. 17-29
DOI: 10.1149/1.3238202

2009

ECS Transactions
Ahmed S., Barrett C.A., O'Sullivan C., Sanyal A., Geaney H., Singh A., Gunning R.D., Ryan K.M.
(2009) ECS Transactions
In Ecs Transactions; pp. 209-219
DOI: 10.1149/1.3120702

2009

Materials Research Society Symposium Proceedings
Ryan K.M., Ahmed S.
(2009) Materials Research Society Symposium Proceedings
pp. 36-40

Other Publications

2017

Compound Copper Chalcogenide Nanocrystals
Coughlan, C,Ibanez, M,Dobrozhan, O,Singh, A,Cabot, A,Ryan, KM
(2017) Compound Copper Chalcogenide Nanocrystals
In Chemical Reviews; pp. 5865-6109
DOI: 10.1021/acs.chemrev.6b00376

2012

High density germanium nanowire growth directly from copper foil by self-induced solid seeding
Geaney, H,Dickinson, C,Ryan, KM
(2012) High density germanium nanowire growth directly from copper foil by self-induced solid seeding
In Abstracts Of Papers Of The American Chemical Society;

2012

Self-assembly of CuInS2 and CuIn1-xGaxS2 nanorod into 2D and 3D superstructure
Singh, A,Coughlan, C,Geaney, H,Kelly, D,Ryan, KM
(2012) Self-assembly of CuInS2 and CuIn1-xGaxS2 nanorod into 2D and 3D superstructure
In Abstracts Of Papers Of The American Chemical Society;

2012

Facile spin-cast route for cation exchange of multilayer perpendicularly-aligned nanorod assemblies
Kelly, D,Singh, A,Barrett, CA,O'Sullivan, C,Coughlan, C,Laffir, FR,O'Dwyer, C,Ryan, KM
(2012) Facile spin-cast route for cation exchange of multilayer perpendicularly-aligned nanorod assemblies
In Abstracts Of Papers Of The American Chemical Society;