3 papers
physics.optics2025
Reconfigurable, Temperature Resilient Phase-Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography
Carlota Ruiz de Galarreta, Yinghao Zhao, Jose Mendoza-Carreño +5
The combination of metasurfaces with chalcogenide phase-change materials is a highly promising route towards the development of multifunctional and reconfigurable nanophotonic devi…
cond-mat.mtrl-sci2024
Sign of the Gap Temperature Dependence in CsPb(Br,Cl)3 Nanocrystals Determined by Cs-Rattler Mediated Electron-Phonon Coupling
S. Fasahat, N. Fiuza-Maneiro, B. Schäfer +5
So far, the striking sign reversal in the near-ambient slope of the gap temperature dependence of colloidal CsPbCl3 perovskite nanocrystals (NCs) compared to its Br counterpart, re…
cond-mat.mtrl-sci2024
Absence of Anomalous Electron-Phonon Coupling in the Temperature Renormalization of the Gap of CsPbBr Nanocrystals
Shima Fasahat, Benedikt Schäfer, Kai Xu +5
Metal halide perovskites exhibit a fairly linear increase of the bandgap with increasing temperature, when crystallized in a tetragonal or cubic phase. In general, both thermal exp…