PhD SolStore II

The Cluster of Excellence livMatS develops completely novel, life-like materials systems that adapt autonomously to various environments and harvest clean energy from their surroundings. The intention of these purely technical – yet in a behavioral sense quasi-living – materials systems is to meet the demands of humans with regard to pioneering environmental and energy technologies. The societal relevance of autonomous systems and their sustainability will thus play an important role in their development. The research program of livMatS is characterized by highly interdisciplinary collaboration between researchers from a broad range of fields including engineering, chemistry, physics, biology, psychology, the humanities, and sustainability sciences.

The livMats Cluster of Excellence is offering the following position:

PhD position for the project SolStore II - Developing Multijunction solar cells with high output voltage

Envisaged start date: as soon as possible

Project description
We aim at developing integrated solar-charging energy storage devices (photosupercapacitors and photobatteries) with high energy and power density as self-sufficient energy and power sources enabling energy autonomy in materials systems. Thus far, we successfully developed several types of photosupercapacitors via monolithic integration of electrochemical double layer supercapacitors with perovskite solar cells (PSC). Although highly efficient, these devices are still limited by output voltages of around 1V, thereby reducing storage capacitances and hence energy and power densities.

To achieve higher operation voltages and hence power/energy density, multijunction solar cells with high output voltage suitable for monolithic integration with the electrochemical storage counterpart shall be developed as the main goal of this thesis. Cell structures will be based on perovskite-silicon tandem cells or perovskite-perovskite-silicon triple cells. Extensive characterization of the devices to better understand their working principles and to identify limiting factors are an integral part of the project.

Candidate profile

  • Very well completed university master studies in physics, chemistry, material science, engineering science or a related subject
  • Experience in wet chemical processing and characterization of thin films and/or characterization of semiconductor devices is an advantage
  • Very good written and spoken English skills
  • Knowledge of German language not mandatory, but advantageous
  • You should be: highly motivated, capable of independent and critical thinking, independent working, smoothly integrating into an international research group

Please hand in:

  • Letter of intent detailing why you are interested in this specific project and how your previous research qualifies you for the project (up to 1,500 words)
  • Curriculum Vitae with list of publications (if applicable)
  • Certified copies of your university degree(s) with grades (BA and MA certificate / Diploma certificate and transcript)
  • Short summary of your master’s thesis (up to 1,000 words)
  • Work sample (chapter from recent thesis or journal article, up to 5,000 words)
  • Suggestion of two references with contact details

Your documents will not be returned after the application process. For this reason, please submit copies only. This position is limited until 31 December 2025. An extension is possible. The salary will be determined in accordance with TV-L E13. We are particularly pleased to receive applications from women for the position advertised here.

Please send your application in English including supporting documents mentioned above citing the reference number 00002653, Application deadline is 04 December 2022.

Application is to be emailed as ONE SINGLE PDF FILE to

Direct all scientific questions about the project to Prof. Stefan Glunz