Snabbfakta
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- Teddington
Ansök senast: 2024-06-23
PhD Vacancy - iCASE Studentship on Metrology of Single Electron Transistor Devices
NPL-Imperial College iCASE Studentship on Metrology of Single Electron Transistor Devices
A four-year funded PhD studentship is available at Imperial College London in collaboration with the National Physical Laboratory (NPL), Teddington Middlesex.
The successful candidate will join the Optical and Semiconductor Devices Group in the Department of Electrical and Electronic Engineering at Imperial College London. The student will be primarily located at Imperial College London, South Kensington Campus, but must also spend at least three months at the National Physical Laboratory, Teddington, Middlesex in the Dimensional Metrology Group working on metrology of quantum devices.
Summary of Project:
Single-electron transistors (SETs) controlling electrons precisely using the Coulomb blockade effect, provide a way to reduce electrical device size to <10 nm with many promising applications: highly scaled ultra-low power nanoelectronics, quantum computing, single molecule detection, metrological current standards, and charge sensors for atomic force microscope (AFM) length metrology. However, these applications require room-temperature (RT) operation and large-scale manufacturability. Currently large-scale manufacture remains a formidable problem, requiring ~1 nm scale size control and measurement to improve production yield. This also forms a broader problem for quantum electronic devices as their operation is typically strongly size dependent.
The project will develop (AFM) metrology of quantum-effect devices, based on RT SETs and silicon NW tunnel FETs as well as their application for dimensional metrology. Previous work at Imperial includes RT single-atom point-contact SETs, with P atom quantum dots and Schottky tunnel barrier Si nanowire field effect transistors. Accurate metrology of these devices is essential to understand and model electrical operation. We aim to correlate AFM data with size scales estimated from electrical characterisation, ‘closing the loop’ between independent structural and electrical characterisation, essential for large scale quantum device manufacture. Several AFMs will be used withing the project; a vacuum AFM at Imperial and AFMs with on board metrology at NPL. In both cases, there will be a component of AFM instrumentation development withing the project.
Benefits:
NPL is a world leading national metrology institute and Imperial College is consistently ranked as one of the top universities in the world in various rankings; for instance, it ranked 6th in the world in the QS World University Rankings for 2023. It has also been ranked as the most innovative university in Europe.
The project will provide a grounding in several industrially relevant areas including: nanometrology, nanoscale device fabrication, quantum device physics, measurement and modelling, dimensional nanometrology using AFMs leading to a sound basis for a career in nanoscience.
The student will benefit from additional training and support at the Imperial College and from the Post Graduate Institute for Measurement Science at NPL. The Post Graduate Institute for Measurement Science (PGI), based at NPL is a pioneering initiative to equip the UK with an exceptionally skilled workforce ready to tackle real life industrial challenges.
Please click here to apply. Course code: Electrical Engineering Research – H6ZX. The application should also include a cover letter and your CV.
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