[17p-B6-1~16] 12.4 Organic light-emitting devices and organic transistors

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-B6-6] Development of laser molecules having high radiative decay rate constants aiming at low threshold

〇(M2)Masahiro Nagano^1,2, Kenichi Goushi^2,3, Chihaya Adachi^2,3 (1.Kyushu Univ., 2.Kyushu Univ. OPERA, 3.Kyushu Univ. I-CNER)

Keywords:

Organic semiconductor laser,Low threshold

I have designed molecules based on the benzoxazole (BOX) group to achieve low-threshold lasing and stability under current excitation. Organic semiconductor lasers that can be excited by current face the challenge of high thresholds. Although the BSBCz molecule, which enables low-threshold lasing, has been developed, it has low stability under current excitation. On the other hand, the BOX group offers excellent stability and allows low-threshold lasing due to the extension of π-conjugation. The BOX derivatives I designed demonstrate a threshold comparable to that of BSBCz and are promising as laser materials.