Indication of current-injection lasing from an organic semiconductor

Atula S.D. Sandanayaka, Toshinori Matsushima, Fatima Bencheikh, Shinobu Terakawa, William J. Potscavage, Chuanjiang Qin, Takashi Fujihara, Kenichi Goushi, Jean Charles Maurice Ribierre, Chihaya Adachi

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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.

Original languageEnglish
Article number061010
JournalApplied Physics Express
Volume12
Issue number6
DOIs
Publication statusPublished - Jun 1 2019

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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    Sandanayaka, A. S. D., Matsushima, T., Bencheikh, F., Terakawa, S., Potscavage, W. J., Qin, C., Fujihara, T., Goushi, K., Ribierre, J. C. M., & Adachi, C. (2019). Indication of current-injection lasing from an organic semiconductor. Applied Physics Express, 12(6), [061010]. https://doi.org/10.7567/1882-0786/ab1b90