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Research

In page navigation: CTFM Chair
  • Bachmann group research
    • Group members
      • Prof. Julien Bachmann
      • Dr. Ryan Crisp
      • Laura Progscha
      • Dr. Sebastian Bochmann
      • Dr. Maïssa Barr
      • Dr. Christhy Vanessa Ruiz Madroñero
      • Dr. Yuanyuan Cao
      • Pascal Büttner
      • Dirk Döhler
      • Michael Bosch
      • André Hofer
      • Vanessa Koch
      • Sarah Tymek
      • Jonas Englhard
      • Marco Jiménez Sánchez
      • Baolin Zhao
      • Dr. Gennadiy Bulavko
      • Sofia Korenko
      • Sonja Stevanovic
      • Jinsheng Zhang
      • Pei-Chun Liao
      • Maximilian Dierner
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  • Crisp group research
    • Research
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    • Group members
      • Dr. Ryan Crisp
      • Katharina Dehm
      • Vincent Mauritz
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Research

Image: Crisp

The field of nanoscience, especially for energy applications, is multidisciplinary. As such, my work with nanowires, graphene, nano-coatings, and QDs (both to remain confined and sintered together) has merged the fields of physics, chemistry, and engineering in unique ways. This interplay allows for a deeper understanding of the unique nanoscale properties that enable better energy utilization with solar cells and photoelectrochemical cells.

Though the focus is on devices, we use a holistic approach to tackle the most pertinent challenges of solar energy harvesting with a combination of synthesis, characterization, and spectroscopy. We currently focus on QD synthesis and optoelectronic properties of semiconductors in coordination with the group of Prof. Bachmann’s Chair Chemistry of Thin Film Materials. Furthermore, we design and fabricate polystyrene spheres with embedded QDs for optical labels in collaboration with Prof. Ralph Palmisano, Dr. Angela Perez with the Optical Imaging Center of Erlangen (OICE) and Prof. Joachim von Zanthier and Mr. Stefan Richter of the FAU Physics Dept.

Work is ongoing to develop advanced photoelectrodes and new materials for light harvesting. Using the principles of atomic layer deposition in a new solution-based methodology that we call QD-LD, we deposit various QD materials (PbS, CuInS2, CZTS, BaZrS3, ZnSe, ZnO, TiO2) and investigate their photoelectrochemical response and solar cell performance with particular interest on advanced photophysics of carrier multiplication, hot electron transfer, and multi-electron effects funded by a joint grant with the DFG and the Polish National Science Center (NCN) (details here — OPUS LAP contest, panel ST5, rank 18) in collaboration with Prof. Katarzyna Siuzdak.

I have further developed an active collaboration with Profs. Guldi and Mandel where I lead my student workers (HiWis) and thesis students on understanding charge transfer properties of CZTS and CuInS2 QDs and metal oxide nanoparticles using transient absorption spectroscopy and spectroelectrochemistry.

Funding for these works is provided by:

Dr. Hertha und Helmut Schmauser-Stiftung

Emerging Talents Initiative (ETI)

Excellence cluster ‘Engineering of Advanced Materials’ (EAM) Starting Grant

Logo EAM

DFG in collaboration with Prof. Katarzyna Siuzdak and the NCN (details here — OPUS LAP contest, panel ST5, rank 18)

Friedrich Alexander University Erlangen-Nürnberg
Department of Chemistry and Pharmacy

Nikolaus-Fiebiger-Str. 10
91058 Erlangen
Germany
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