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 Ribierre, Chihaya Adachi

Research output: Contribution to journalConference articlepeer-review


We demonstrate the lasing properties of 4,4’-bis[(N-carbazole)styryl]biphenyl (BSBCz) thin films under electrical pumping. The device incorporates a mixed-order distributed feedback SiO2 grating in 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 to suppress losses at high current densities.

Original languageEnglish
Article number1152001-83
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2020
Event9th Laser Display and Lighting Conference, LDC 2020 - Yokohama, Japan
Duration: Apr 21 2020Apr 24 2020

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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