Indication of current-injection lasing from an organic semiconductor
Open Access
- 31 May 2019
- journal article
- research article
- Published by IOP Publishing in Applied Physics Express
- Vol. 12 (6), 061010
- https://doi.org/10.7567/1882-0786/ab1b90
Abstract
In this study, we investigate the lasing properties of 4,4'-bis[(N-carbazole)styryl]biphenyl thin films under electrical pumping. The electroluminescent devices incorporate a mixed-order distributed feedback SiO2 grating into an organic light-emitting diode structure and emit blue lasing. The results provide an indication of lasing by direct injection of current into an organic thin film through selection of a high-gain organic semiconductor showing clear separation of the lasing wavelength from significant triplet and polaron absorption and design of a proper feedback structure with low losses at high current densities. This study represents an important advance toward a future organic laser diode technology.Keywords
Funding Information
- Exploratory Research for Advanced Technology (JPMJER1305)
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