PhD Position in Perovskite Tandem Solar Cells University of Freiburg Institute for Sustainable Systems Engineering

Description

Recently the possibility to use perovskites in tandem or even triple junction solar cells has attracted a lot of attention. Multi-junction solar cells with active perovskite layers enable high efficiencies and are potentially cost-effective. However, the higher efficiency potential of these solar cells comes with a higher complexity due to several thin layers and interfaces. For an optimization of these new solar cell concepts, a precise understanding of the physical processes in the different solar cell regions is needed. Numerical simulations offer the possibility to look at these processes in detail.

The aim of this research project is to simulate, analyse and optimize the device properties of perovskite solar cells including optical properties (e.g. current-matching of the sub cells) and electrical properties (e.g. carrier transport at interfaces). In this way, various solar cell structures can be optimized, and their potential evaluated without much experimental effort. The position allows to actively participate in the development of new solar cell types in collaboration with technologists and other simulation experts. For these tasks, we can build on the expertise developed over many years in our group. 

Starting from 1st of November 2022 or as soon as possible after this date, the Engineering Faculty at the University of Freiburg (Germany) opens a new position for a student to do research towards a PhD on the simulation and characterisation of perovskite thin films for multi-junction solar cells. Potential candidates should hold a Master degree in Physics or similar.

Your task

You will study perovskite thin films for use in multi-junction solar cells. The focus will be on the optical and electrical simulation of the main physical mechanism in these new solar cell concepts. The goal is the assessment and optimization of these solar cells. Besides close collaboration with PhD students fabricating and measuring perovskite solar cells, the work involves planning, evaluating, and possibly conducting own experiments.

Research includes the deposition of perovskite absorbers, the characterisation of thin films and solar cells, and the integration of these thin films into triple junction solar cells. The work is happening in a highly collaborative environment and there will be many opportunities to work with experts in the field. Close collaboration with technologists from INATECH and Fraunhofer Institute for Solar Energy Systems (ISE) and work in government funded research projects.

Your profile

• Master degree in physics or related fields
• Profound knowledge of semiconductor physics
• Ideally programming experience
• Ability to work in diverse teams
• Ability for in-depth analysis
• Good English skills are required

What we offer

The successful candidate will join the “Photovoltaic Energy Conversion” group of Prof. Stefan Glunz. The group focuses on the development, characterization, and simulation of high-efficiency solar cells. The work can build on sophisticated models for multi-junction solar cells. Close collaboration with the technologists from Fraunhofer Institute for Solar Energy Systems (ISE) which is just 200 m away from the university labs ensures direct access to world-class facilities and fast-track to industrial application.