Indication of current-injection lasing from an organic semiconductor

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 result...

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Bibliographic Details
Published inApplied physics express Vol. 12; no. 6; pp. 61010 - 61015
Main Authors Sandanayaka, Atula S. D., Matsushima, Toshinori, Bencheikh, Fatima, Terakawa, Shinobu, Potscavage, William J., Qin, Chuanjiang, Fujihara, Takashi, Goushi, Kenichi, Ribierre, Jean-Charles, Adachi, Chihaya
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.06.2019
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Summary: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.
Bibliography:APEX-101880
ISSN:1882-0778
1882-0786
DOI:10.7567/1882-0786/ab1b90