Superlinear emission in bare perovskite: amplified spontaneous emission in disordered film versus single crystal lasing
| Autor: | F. Biccari, A. Ristori, F. Gabelloni, C. Francioni, F. La China, N. Caselli, F. Intonti, M. Gurioli, J. Lee, S. Leblebici, A. Weber-Bargioni, A. Vinattieri |
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| Rok vydání: | 2017 |
| Předmět: |
Amplified spontaneous emission
Materials science Photoluminescence Condensed matter physics Physics::Optics 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Molecular physics 0104 chemical sciences Condensed Matter::Materials Science Picosecond Emission spectrum 0210 nano-technology Single crystal Lasing threshold Excitation Perovskite (structure) |
| Zdroj: | Materials Today: Proceedings. 4:S12-S18 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2017.05.005 |
| Popis: | We present an experimental study concerning the superlinear emission in organic-inorganic halide perovskites. Microphotoluminescence experiments under CW and picosecond excitation condition at low temperature and near field optical photoluminescence spectra at room temperature provide clear evidence of the very different origin of the superlinear regime in disordered films and microplates/microwires. Insights on the origin of modal structures of the emission spectra in the high excitation regime will be given by polarization-resolved photoluminescence experiments. |
| Databáze: | OpenAIRE |
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