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  • PESAN DAN TANGGAPAN :

    Joint PhD position at UCL, London and A*STAR Singapore
    Oleh : A*STAR
    Rabu, 13 Desember 2017 (09:09 WIB) dari IP 203.160.128.134

    Gas interactions with 2D materials at the atomic scale

    This 3.5-year PhD studentship in is available in the groups of Prof. Alexander Shluger (UCL, UK) and Dr. Michel Bosman (IMRE, A*STAR, Singapore)

    The Studentship

    This position is open to the UK and EU students and is fully funded by the UCL-A*STAR Collaborative Programme via the Centre for Doctoral Training in Molecular Modelling and Materials Science (M3S CDT) at UCL. The student will be registered for a PhD at UCL where he/she will spend year 1 and the first six months of year 4. The second and third years of the PhD will be spent at the A*STAR IMRE in Singapore. The Studentship will cover tuition fees at UK/EU rate plus a maintenance stipend £17,050 (tax free) pro rata in years 1 and 4. During years 2 and 3, the student will receive a full stipend directly from A*STAR.

    Please note that, due to funding restrictions, only UK/EU citizens are eligible for this studentship.

    The Project

    2D materials, such as graphene, MoS2, hexagonal BN, black Phosphorus, are perspective materials for microelectronics, sensing, molecular membranes and other applications. Deep understanding of the interaction of surfaces of these materials with atoms and molecules is fundamental for success of these emerging technologies and requires developing new experimental and theoretical methods. This project combines experimental studies of these systems with theoretical modelling. It will use the most advanced aberration corrected scanning TEMs (STEMs) available at IMRE and computational modelling expertise and device manufacturing at UCL.

    Advanced microscopes with the capability to image materials at 0.1 nm resolution even at gentle-beam conditions are ideally suited for atomic-scale studies of 2D materials. Recently, it has become possible to expose sample material to a gas while it is being observed in the STEM. The sample material can also be heated to a set temperature, and exposed to different gases. Such experiments will be used to study all sorts of gas-solid interactions at the atomic scale. This includes gas-molecule adsorption, surface diffusion as well as catalysis and thin film growth.

    The theoretical part of the project underpins these experiments and will be carried out both at UCL and at IMRE. It will involve quantum-mechanical and molecular dynamics simulations of 2D materials, their interaction with gas molecules, the effects of electron irradiation on the structure of materials, and reactions at surfaces in relation to experiments. The adventurous part of this program will involve linking the modelling of radiation effects induced by the electron beam of STEM with surface reactivity of 2D materials.

    The Candidate

    The successful applicant should have or expect to achieve at least a 2.1 honours or equivalent for undergraduate degree in Physics or Physical Chemistry. They will demonstrate strong interest and self-motivation in the subject, good experimental and computational skills, the ability to think analytically and creatively. Good presentation and writing skills in English are required. Previous research experience in contributing to a collaborative interdisciplinary research environment is highly desirable but not necessary as training will be provided.

    Please contact Prof. Alexander Shluger (a.shluger@ucl.ac.uk) for further details or to express an interest.


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