Optical pumped lasing in solution processed perovskite semiconducting materials: Self-assembled microdisk lasing

Optical pumped lasing has been observed in solution-processed perovskite semiconducting materials, such as CH3NH3PbBr3. Square or disk-shaped self-assembled microcavities have been easily obtained and their sizes distribute from 4-30 µm. The square and disk microcavities show clear multimode lasing...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2016-04, Vol.55 (4S), p.4
Main Authors: Sasaki, Fumio, Mochizuki, Hiroyuki, Zhou, Ying, Sonoda, Yoriko, Azumi, Reiko
Format: Article
Language:English
Subjects:
Disks
Holes
Lasing
Mathematical analysis
Microcavities
Optical pumping
Perovskites
Spectra
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Summary:Optical pumped lasing has been observed in solution-processed perovskite semiconducting materials, such as CH3NH3PbBr3. Square or disk-shaped self-assembled microcavities have been easily obtained and their sizes distribute from 4-30 µm. The square and disk microcavities show clear multimode lasing under pulsed optical pumping. The mode intervals are spread in the case of disk cavities. The observed multimode patterns are compared with the spectra obtained by finite differential time domain calculations. The results can be explained by the whispering gallery mode (WGM) or quasi-WGM in microdisk cavities.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.55.04ES02