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Research Fellow in Room Temperature Single Electron Transistors, fabricated using STM

UCL - London Centre for Nanotechnology

Location: London
Salary: £36,770 to £44,388 Per annum, inclusive of London Allowance.
Hours: Full Time
Contract Type: Permanent
Placed On: 18th November 2021
Closes: 5th December 2021
Job Ref: 1880344
 

The post is funded for 2.5 years in the first instance.

The postholder will work towards the fabrication of single electron transistors (SETs) that operate at room temperature, using two approaches, (i) Fabricate ensembles of dopants from precursor molecules (e.g. As from AsH3) using chemical vapour deposition (CVD), then use scanning tunnelling microscopy/spectroscopy (STM/STS) to generate atomic-scale maps which can be exploited to fabricate SETs using an established method. (ii) Use STM hydrogen resist lithography to define SET structures where a single dopant is placed between two electrodes in UHV. Subsequently use ambient AFM local anodic oxidation (LAO) to induce tunnel barriers around the dopant, which will act as the SET island.

Duties and responsibilities include: Fabricate room temperature SETs from ensembles of dopants, where the location of each dopant has been established, or one at a time in predetermined locations using hydrogen lithography and AFM LAO; prepare manuscripts for submission to peer-reviewed journals; prepare presentations, including text and images, for delivery by self as well as others; contribute to the overall activities of the research team and department as required; contribute to the induction and direction of other research staff and students as requested; and carry out any other duties as are within the scope, spirit and purpose of the job as requested by Prof. Curson.

Essential: considerable experience of using UHV STM and STS at cryogenic temperatures; experience of using STM to perform lithography or to manipulate atoms in a controlled manner; experience of studying gas adsorption and reactions on surfaces in UHV, using STM; a track record in publishing high-quality research.

Desirable: some experience of using local anodic oxidation with AFM to write oxide patterns in surfaces; experience of fabricating nanoscale semiconductor devices using cleanroom techniques.

Applicants should apply online. To access further details about the position and how to apply please click on the ‘Apply’ button above.

If you have any queries regarding the vacancy or the application process, please contact Denise Ottley, d.ottley@ucl.ac.uk, at the London Centre for Nanotechnology, or 17-19 Gordon Street, London WC1H 0AH, for advice.

Informal enquiries regarding the vacancy can be made to Professor Neil Curson, n.curson@ucl.ac.uk.

Latest time for the submission of applications: 23:59.

UCL Taking Action for Equality

We will consider applications to work on a part-time, flexible and job share basis wherever possible.

Our department holds an Athena SWAN Bronze award, in recognition of our commitment to advancing gender equality.

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