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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 researcher

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

Electrodeposition of a functional solid state memory material – germanium antimony telluride from a non-aqueous plating bath
Gabriela Kissling, Ruomeng Huang, Andrew Jolleys, Sophie L Benjamin, Andrew L. Hector, Gillian Reid, William Levason, Cornelis De Groot & Philip N. Bartlett, 2018, Journal of the Electrochemical Society, 165(11), D557-D567
DOI: 10.1149/2.0981811jes
Type: article
Compliance-free ZrO2/ZrO2−x/ZrO2 resistive memory with controllable interfacial multistate switching behaviour
Ruomeng Huang, Xingzhao Yan, Sheng Ye, Reza J. Kashtiban, Richard Beanland, Katrina A. Morgan, Martin D.B. Charlton & C.H. de Groot, 2017, Nanoscale Research Letters, 12
DOI: 10.1186/s11671-017-2155-0
Type: article
Haloplumbate salts as reagents for the non-aqueous electrodeposition of lead
Philip Bartlett, Jennifer Burt, Mahboba Hasan, Andrew Hector, William Levason, Gill Reid & Peter Richardson, 2016, RSC Advances, 6(77), 73323-73330
DOI: 10.1039/C6RA12942K
Type: article
Nanoscale arrays of antimony telluride single crystals by selective chemical vapor deposition
Ruomeng Huang, Sophie Benjamin, Chitra Gurnani, Yudong Wang, Andrew Hector, William Levason, Gill Reid & C.H. (Kees) de Groot, 2016, Scientific Reports, 6, 1-10
DOI: 10.1038/srep27593
Type: article
Cationic aza-macrocyclic complexes of germanium(ii) and silicon(iv)
Matthew Everett, Andrew Jolleys, William Levason, Mark E. Light, David Pugh & Gillian Reid, 2015, Dalton Transactions, 44(48), 20898-20905
DOI: 10.1039/c5dt03941j
Type: article