IPS is associated partner in detector project

  • Date: Oct 2022

Non-toxic, highly efficient Perovskite X-ray detectors: Search and development (Perodet)

Perovskites are the rising stars in the field of photovoltaic cells and displays. The research of these materials was very successful in the recent years and demonstrated the excellent performance regarding energy conversion efficiency and production capabilities. In comparison to the conventional silicon semiconductor the development of Perovskites are very promising which yield a similar performance in a few years instead of decades.

The project Perodet aims at the development of Perovskite-based detectors and related technology for production of Hybrid Pixel Array detectors. In direct cooperation between material growers and detector experts this new class of materials will be evaluated, production methods developed, and first detector units produced. The crystals will be analyzed by material characterization methods using deep level spectroscopy, detector measurements, and White Beam Synchrotron Topography at KIT. The work plan of the project includes the production of the Pervoskite materials, the intensive material characterization, and the development of related technologies like surface preparation, contact deposition, and bump bonding.



The scientific and technological objectives of this proposal are:

  • Development of technologies for production of thick-film Perovskite sensor materials with the detector properties (high resistivity >109 Ohm cm, mobility-lifetime ~ 10-4 cm2/V)
  • Development of non-toxic, high efficient detector material
  • Reduction the fabrication process regarding time and temperatures
  • Deposition of the thick films with optimized grain size for high spatial resolution on the read-out electronics
  • Development of the possibility for a large area Perovskite detector system
  • Exploitation of the new knowledge on Pervoskite sensors and technology



  • Michael Fiederle (Freiburg Materials Research Center, Freiburg University)
  • Harald Hillebrecht (Freiburg University)


Associated Partners

  • Elias Hamann, Tilo Baumbach (KIT-IPS)