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: G.Reid@soton.ac.uk

Other researchers

Professor Philip Bartlett

Professor of Chemistry

Research interests

Electrochemistry
Bioelectrochemistry
Templated electrodeposition of nanomaterials

Connect with Philip

Email: P.N.Bartlett@soton.ac.uk

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: A.L.Hector@soton.ac.uk

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: chdg@southampton.ac.uk

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: wxl@soton.ac.uk

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/ZrO_2−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