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Current MSc projects

21 October 2021

The Department Optics for Solar Energy at Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) currently offers Master Thesis Projects for students of natural sciences, engineering and data sciences.

At HZB, sustainable energy technologies are investigated and developed. HZB is today one of the largest non-university research centres in Berlin. At the Department Optics for Solar Energy we use experimental methods and numerical simulations to improve the light harvesting of solar cells.

Project 1: Light management in Perovskite/Silicon tandem solar cells

The combination of conventional silicon solar cells with perovskite solar cells to form a tandem device is considered a very promising concept in photovoltaics, as it allows different spectral components of sunlight to be converted into energy more efficiently. However, the efficiency potential has not yet been fully exploited, due in part to optical losses and inadequate light management.


  • Fabricating anti-reflective nanostructures for perovskite/silicon tandem solar cells
  • Optimizating fabrication processes such as nanoimprint lithography, reactive ion etching, etc.
  • Analysing optical, structural and electrical properties of the nanostructured interfaces in the solar cell device


  • Currently pursuing a master's degree in natural sciences or engineering
  • Knowledge of optics and photovoltaics, as well as first experience in clean room work is an advantage, but not mandatory.
  • Ability to work in a team as well as enthusiasm for experimental work

Project 2: Energy yield calculations for photovoltaic systems

Precise energy yield calculations are essential for the development and design of photovoltaic systems. For this purpose, accurate illumination models are necessary.For building-integrated photovoltaics, the complex shading situation may have to be taken into account; for systems with bifacial solar modules, which can also utilize the light incident on the rear side, the optics of the subsurface must be known precisely. In this project, different existing models should be combined in order to perform complete yield calculations.


  • Studying existing models for energy yield calculation of photovoltaic systems
  • Combining existing models into an integrated tool for energy yield calculations
  • Testing the model on selected application examples


  • Currently pursuing a master's degree program in computer science, natural sciences or engineering.
  • Knowledge in optics and photovoltaics, as well as initial experience in Python programming is an advantage, but not mandatory.
  • Enthusiasm for programming and software development