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Research project

EP/I010890/1 - Phase Change Materials - Gill Reid

Project overview

We report a new method for electrodeposition of device-quality metal chalcogenide semiconductor thin films and nanostructures from a single, highly tuneable, non-aqueous electrolyte. This method opens up the prospect of electrochemical preparation of a wide range of functional semiconducting metal chalcogenide alloys that have applications in various nano-technology areas, ranging from the electronics industry to thermoelectric devices and photovoltaic materials. The functional operation of the new method is demon- strated by means of its application to deposit the technologically important ternary Ge/Sb/Te alloy, GST-225, for fabrication of nano- structured phase change memory (PCM) devices and the quality of the material is confirmed by phase cycling via electrical pulsed switching of both the nano-cells and thin films.

Staff

Lead researchers

Professor Gill Reid

PROFESSOR OF CHEMISTRY

Research interests

  • Synthetic inorganic chemistry
  • Design and synthesis of new macrocyclic and multidentate ligands involving donor atoms from Groups 15 (P, As, Sb, Bi) and 16 (S, Se, Te)
  • Coordination chemistry with s-, p-, d- and f-block metal ions
Connect with Gill

Email: [email protected]

Other researchers

Professor Philip Bartlett

Professor of Chemistry

Research interests

  • Electrochemistry
  • Bioelectrochemistry
  • Templated electrodeposition of nanomaterials
Connect with Philip

Email: [email protected]

Professor Andrew Hector

Head of School

Research interests

  • Materials synthesis, including metal nitrides, thin film materials, sol-gel and solvothermal processes and porous structures.
  • Materials characterisation – powder and thin film diffraction, microscopy and spectroscopy techniques.
  • Electrochemistry, including charge storage in battery and supercapacitor type cells, and electrodeposition of various materials. 
Connect with Andrew

Email: [email protected]

Professor Kees De Groot

Professor

Research interests

  • Radio-Frequency and Microwave Devices
  • 2 dimensional Transition Metal Dichalcogenides  Transistors
  • Smart Radiative Cooling and RF control of smart glass using metal oxides such as Al-doped ZnO and W-doped VO2
Connect with Kees

Email: [email protected]

Emeritus Professor William Levason

Research interests

  • Coordination chemistry, group 15 and 16 donor ligands, early transition metal chemistry, main group metal chemistry 
Connect with William

Email: [email protected]

Research outputs

Controlling the nanostructure of bismuth telluride by selective chemical vapour deposition from a single source precursor
Sophie L. Benjamin, C.H. de Groot, Chitra Gurnani, Andrew L. Hector, Ruomeng Huang, Elena Koukharenko, William Levason & Gillian Reid, 2014, Journal of Materials Chemistry A, 2(14), 4865-4869
DOI: 10.1039/c4ta00341a
Type: article
Area selective growth of titanium diselenide thin films into micropatterned substrates by low-pressure chemical vapor deposition
Sophie Benjamin, C.H. de Groot, Chitra Gurnani, Andrew L. Hector, Ruomeng Huang, Konstantin Ignatyev, William Levason, Stuart Pearce, Fiona Thomas & Gillian Reid, 2013, Chemistry of Materials, 25(23), 4719-4724
DOI: 10.1021/cm402422e
Type: article
Non-aqueous electrodeposition of metals and metalloids from halometallate salts
Philip N. Bartlett, David A. Cook, C.H. de Groot, Andrew L. Hector, Ruomeng Huang, Andrew Jolleys, Gabriela P. Kissling, William Levason, Stuart Pearce & Gillian Reid, 2013, RSC Advances, 3(36), 15645-15654
DOI: 10.1039/c3ra40739j
Type: article
Telluroether and Selenoether complexes as single source reagents for low pressure chemical vapor deposition of crystalline Ga2Te3 and Ga2Se3 thin films
Kathryn George, Cornelis H. de Groot, Chitra Gurnani, Andrew L. Hector, Ruomeng Huang, Marek Jura, William Levason, Gillian Reid & R. Huang, 2013, Chemistry of Materials, 25(9), 1829-1836
DOI: 10.1021/cm400382j
Type: article
Low pressure chemical vapour deposition of crystalline Ga2Te3 and Ga2Se3 thin films from single source precursors using telluroether and selenoether complexes
Kathryn George, C. H. de Groot, Chitra Gurnani, Andrew L. Hector, Ruomeng Huang, M. Jura, William Levason & Gillian Reid, 2013, Physics Procedia, 46, 142-148
DOI: 10.1016/j.phpro.2013.07.056
Type: article