Improvement of the quasi-continuous-wave lasing properties in organic semiconductor lasers using oxygen as triplet quencher

Atula S.D. Sandanayaka, Li Zhao, Delphine Pitrat, Jean Christophe Mulatier, Toshinori Matsusima, Chantal Andraud, Ju Hyung Kim, Jean Charles Maurice Ribierre, Chihaya Adachi

研究成果: ジャーナルへの寄稿記事

13 引用 (Scopus)


We demonstrate quasi-continuous-wave lasing in solvent-free liquid organic semiconductor distributed feedback lasers based on a blend containing a liquid 9-(2-ethylhexyl)carbazole host doped with a blue-emitting heptafluorene derivative. The liquid gain medium is bubbled with either oxygen or nitrogen in order to investigate the role of a triplet quencher such as molecular oxygen on the quasi-continuous-wave lasing properties of organic semiconductor lasers. The oxygenated laser device exhibits a low threshold of 2 μJ cm-2, which is lower than that measured in the nitrogenated device and is independent of the repetition rate in a range between 0.01 and 4 MHz.

ジャーナルApplied Physics Letters
出版物ステータス出版済み - 5 30 2016


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)