Ph.D. student for thermoelectric generator modules

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Do you want to help develop innovative and environmentally friendly energy technologies for the future?

Thermoelectric materials convert heat directly into electricity without moving parts. A thermoelectric (TE) module consists of at least two different materials. A major part of the losses in such modules is associated with the contacts and interfaces between these materials. DTU Energy Conversion, the Section for Electro-Functional Materials, is now seeking a motivated PhD student to study the evolution of contacts and interfaces (both electrical as well as thermal) in thermoelectric modules.

Responsibilities and tasks
You will be part of a large national project on “Center for Thermoelectric Energy Conversion” with partners from both universities and industry. The successful candidate will have the opportunity to work closely with TEGnology A/S, a dynamic and active company that develops thermoelectric generators for medium range temperature applications.

In this project, the PhD will identify and measure the contact resistances of TE legs and electrodes over extended periods of time under different atmospheres. The measurements will also allow for the kinetics of the interface to be studied by imaging and analytical techniques. Different possible contact materials e.g. metals or alloys, as well as joining methods will be considered and investigated in order to minimize the internal resistances of the modules to maximize the power output and efficiency. The results of the contact resistance measurements will be incorporated with numerical modeling to identify the optimal way to improve the module performance.

Qualifications

  • Master’s degree in chemistry, physics, materials science or similar
  • Good knowledge of solid state physics and thermodynamics
  • Experience with experimental methods for materials processing and characterization
  • Preferably familiarity with multi-physics programs for simulations, e.g. COMSOL
  • 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

Approval and Enrolment
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.

We offer
We offer an interesting and challenging job in an international environment focusing on education, research, public-sector consultancy and innovation, which contribute to enhancing the economy and improving social welfare. We strive for academic excellence, collegial respect and freedom tempered by responsibility. The Technical University of Denmark (DTU) is a leading technical university in northern Europe and benchmarks with the best universities in the world.

Salary and appointment terms
The salary and appointment terms will be based on the collective agreement with the Confederation of Professional Associations (AC). Salary will depend on qualifications and experience. The position is for a fixed duration of 3 years. The place of work will be at the Department of Energy Conversion and Storage, DTU Risø Campus, Roskilde, Denmark.

Further information
For further information please contact Professor Nini Pryds, nipr@dtu.dk, Senior Researcher Rasmus Bjørk, rabj@dtu.dk or Senior Researcher Kaspar K. Nielsen, kaki@dtu.dk.

Please do not send applications to this e-mail address, instead apply online as described below.

Application
Please submit your online application no later than 1 October 2014. Apply online at www.career.dtu.dk 

View the full job ad at www.dtu.dk/job