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Lecture

WEB Electrospun Hybrid Perovskite Fibers – Flexible Networks of One-Dimensional Semiconductors for Light Harvesting Applications

Wednesday (23.09.2020)
09:45 - 10:00 Z: Special Symposia I
Part of:


The interest in perovskite solar cells is growing rapidly due to their versatile applicability for energy harvesting systems. In a short period of time, devices already reached efficiencies up to 25%, making them comparable to established thin-film solar cells like Cu(In,Ga)Se2 or CdTe. The quantity of publications dealing with planar and rigid solar cells is growing tremendously; however, fibrous solar cells have not been in focus yet. Since the 1D structure provides a greater flexibility in comparison to planar systems, applications ranging from e-textiles/wearables to lightweight applications are feasible. Here, the single step fabrication of phase-pure organic-inorganic lead halide perovskite fibers by inert electrospinning technique is presented. Morphological, as well as optical/photonic properties have been studied and demonstrate first comprehensive data on electrospun organic-inorganic hybrid materials. Substitution of the absorbing layer in planar heterojunction solar cells with perovskite fibers resulted in a photoelectric response under simulated sunlight conditions. These flexible 1D hybrid perovskite fibers are potential elements for flexible optoelectronics and mark a starting point towards competitive fibrous solar cells.

Speaker:
Christoph Bohr
University of Cologne
Additional Authors:
  • Dr. Markus Pfeiffer
    University of Cologne
  • Dr. Senol Öz
    University of Cologne
  • Florian von Toperczer
    University of Cologne
  • Dr. Ashish Lepcha
    University of Cologne
  • Dr. Thomas Fischer
    University of Cologne
  • Dr. Markus Schütz
    University of Cologne
  • Prof. Klas Lindfors
    University of Cologne
  • Prof. Sanjay Mathur
    University of Cologne