Parts | Days | Selection | Search | Updates | Downloads | Help
HL: Fachverband Halbleiterphysik
HL 42: Perovskite and Photovoltaics II (joint session HL/KFM)
HL 42.1: Talk
Thursday, March 21, 2024, 09:30–09:45, EW 203
Raman spectroscopy on BaTiS3 perovskite nanocrystals — •Selina Nöcker1, Sandra Zech1, Vincent Mauritz2, Katharina Dehm2, Ryan Crisp2, and Janina Maultzsch1 — 1Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany — 2Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
Perovskites and related materials are emerging candidates for photovoltaics demonstrating promising energy conversion efficiencies. Here we study lead- and halide-free BaTiS3, colloidally synthesized as wire- and rod-shaped nanocrystals.
For the structural analysis of those nanocrystals, we use Raman spectroscopy and compare the results to single-crystal spectra of BaTiS3. Our study includes temperature-dependent and excitation-wavelength dependent measurements. Moreover, we show that Raman spectroscopy can be used as a straightforward method to distinguish between the two shape types.
Keywords: Perovskite; Raman spectroscopy; Nanocrystals