Translator Disclaimer
Presentation
20 August 2020 Room temperature amplified spontaneous emission and lasing in CsPbCl3 spontaneously formed in superlattices of PbCl2/CsCl
Author Affiliations +
Abstract
The preparation of wide-gap CsPbCl3 thin films from solution is impeded by the poor concomitant solubility of the precursor salts PbCl2 and CsCl. In the present study, we prepared superlattices of PbCl2 and CsCl by thermal evaporation. The superlattice shows an intense photoluminescence at 413 nm with a narrow line width of 10 nm (FWHM), which agrees with reports of CsPbCl3 single crystals. Most notably, the resulting layer structures support amplified spontaneous emission (ASE) in the deep blue spectral region at 427 nm (width 2.2 nm) under pulsed optical excitation (355 nm, 300 ps) above a threshold energy density of 190 μJ/cm2 at room temperature (RT). This is the first report of CsPbCl3 thin films showing ASE at RT.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas J. Riedl, Tobias Haeger, Manuel Runkel, Neda Pourdavoud, Ralf Heiderhoff, and Johannes Bahr "Room temperature amplified spontaneous emission and lasing in CsPbCl3 spontaneously formed in superlattices of PbCl2/CsCl", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 1147319 (20 August 2020); https://doi.org/10.1117/12.2568611
PROCEEDINGS
PRESENTATION


SHARE
Advertisement
Advertisement
Back to Top