electrical conductivity | Scholarship for Nigerians and Africans

PhD Scholarship for Development and Processing of p-type Oxide Thermoelectric Materials, Denmark: Chemistry

The Fuel Cells and Solid State Chemistry Division at Risø DTU is seeking a PhD student to develop and process new types of oxide thermoelectric materials for use in conversion of heat into electricity.

Thermoelectric power conversion is a promising technology for waste heat recovery in a broad variety of applications, e.g. transportation, building and industry. A thermoelectric device works by converting a certain temperature difference into an electric potential to generate power.

You will be part of a large project which aim to develop and demonstrate high-temperature efficient thermoelectric oxide modules integrated in a converter system.

This will take place at the international front line in collaboration between Risø DTU and four leading laboratories in Denmark, Japan and the US, while industry participation ensures strong links to both technology providers and end-users.

The project
A major challenge in thermoelectric materials development is to manipulate the structure and physical properties in order to improve thermoelectric power, electrical conductivity and simultaneously reduce thermal conductivity. The project is focussed on the development of novel thermoelectric oxide materials (especially p-type), characterisation techniques of thermoelectric materials and the integration of these materials in a thermoelectric device for high temperature applications.

• Master’s degree in chemistry, physics, materials science or similar
• Knowledge in synthesis of inorganic materials preferably oxides
• Prior knowledge in the area of thermoelectricity is beneficial
• Experience with experimental methods for materials processing and characterization
• Ability to work independently, to plan and carry out complicated tasks, and to be a part of a large, dynamical group
• Good communication skills in English, both written and spoken

We offer
We offer an exciting and challenging job in an international environment. with good possibilities for professional and personal growth. Risø DTU is a family friendly organisation with flexible working hours.

Approval and enrollment
The scholarships for the PhD degree are subject to academic approval, and the candidates will be enrolled in one of the general degree programmes of DTU. For information about the general requirements for enrolment and the general planning of the scholarship studies, please see the DTU PhD Guide.
Salary and appointment terms
The salary and appointment terms are consistent with the current rules for PhD degree students. The period of employment is 3 years.

Scholarship Application Deadline: 15-2-2011

Further Scholarship Information and Application

PhD Studentship in Graphene-Based Devices, University of Exeter, UK

Looking for a talented,self-motivated and high-performing PhD student to be part of ourexperimental research on graphene-based electronic devices at theCentre for Graphene Science at the University of Exeter.
The Centre for Graphene Science is a new established highlyinterdisciplinary research centre between the Universities of Exeterand Bath in the South West of the United Kingdom. The Centre’sresearch focuses on the fabrication, characterization and applicationsof the remarkable new material graphene and provides state-of-the-art equipment, a high-quality research environment and is the hub of an international network of leading academic and industrial groups working on graphene.
Graphene – a single layer of carbon atoms – is a most popular material nowadays due to its promise to produce revolutionary advances in
science and technology. This is demonstrated by the award of the 2010 Nobel prize in Physics to Andre Geim and Konstantin Novoselov who were the first to experimentally reveal this material. Graphene hasspectacular strength, flexibility, transparency, and electrical conductivity. The significance played by this new material is even more apparent when considering that graphene is the thinnest member ofa larger family: the few-layer graphene materials. Even though several physical properties are shared between graphene and its few-layer relatives, recent advances have shown that each specific thickness of few-layer graphene is a material with unique physical properties which are yet largely undiscovered.
The PhD student will work with Dr. Monica F. Craciun and Prof C David Wright on graphene based electronic devices such as memories, sensorsand field-effect transistors. The student will study single layer graphene as well as few-layer graphene in order to find the best suitable material for a specific application. The project involves fabrication of graphene (by mechanical exfoliation and chemical vapor deposition), characterization of graphene layers (by opticalmicroscopy, Raman spectroscopy, X-Ray diffraction), fabrication of graphene based electronic devices and investigation of their electronic transport properties. All the techniques to fabricate and characterize graphene are available within the College of Engineering, Mathematics and Physical Sciences at the University of Exeter. To fabricate graphene devices, the student will use the full arsenal of modern nano-fabrication techniques (including electron beam lithography, electron beam evaporation, sputtering, etching), available in our newly built clean-room facility of the Centre for Graphene Science at Exeter. Transport measurements will be performed at room temperature as wells as at cryogenic temperatures.

The studentship provides a tax-free living allowance of approximately £13,500 pounds and tuition fees at the UK/EU rate. Applicants should
have a background in Applied Physics, Materials Science, Engineering or a related subject and have or expect to gain a First Class UK
Honours degree, or the equivalent from an overseas University.
Computer programming skills in LabVIEW and experience of working in a clean-room environment are appreciated. However, candidates with no such experience should not feel discouraged from applying as training will be provided.
In order to apply you will need to send your CV, covering letter, and contact details for two academic referees to m.f.craciun-at-exeter.ac.uk. Your covering letter should outline your academic interests, prior research experience and reasons for wishing to undertake this project.

Scholarship Application Deadline: 10 March 2011

Further Scholarship Information and Application