Jang Ho Jin, Jeon Gyudam, Patel Khushbu, Lee Hakjun, Kim Taekyung, Lee Jun Yeob, Ha Na Young
School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi 16419, Korea.
Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, Korea.
ACS Appl Mater Interfaces. 2023 Aug 2;15(30):36628-36635. doi: 10.1021/acsami.3c05433. Epub 2023 Jul 23.
The use of triplet excitons harvesting and short exciton lifetime organic emitters is important to improve the exciton utilization in organic semiconductor laser diodes. In this study, a hybridized local and charge-transfer (HLCT)-type molecule, 11-(3-(10-(4-(1-phenyl-1-phenanthro[9,10-]imidazol-2-yl)phenyl)anthracen-9-yl)phenyl)-11-benzofuro[3,2-]carbazole (PhAnMBf), is used as an emitter for blue-emitting organic solid-state lasers (OSSLs). The short exciton lifetime and high photoluminescence quantum yield of the PhAnMBf emitter allowed the fabrication of an organic laser with an emission wavelength of 453 nm, a small full width at half-maximum of 1.2 nm, and a threshold of 105 nJ/pulse, corresponding to 44 μJ/cm, on the distributed feedback substrate. The anthracene-based PhAnMBf material showed the potential of the HLCT emitter as an OSSL.
利用三线态激子收集和短激子寿命的有机发光体对于提高有机半导体激光二极管中的激子利用率很重要。在本研究中，一种杂化局域和电荷转移（HLCT）型分子，11-(3-(10-(4-(1-苯基-1-菲并[9,10-]咪唑-2-基)苯基)蒽-9-基)苯基)-11-苯并呋喃[3,2-]咔唑（PhAnMBf），被用作发射蓝光的有机固态激光器（OSSL）的发光体。PhAnMBf发光体的短激子寿命和高光致发光量子产率使得能够在分布反馈衬底上制造出发射波长为453 nm、半高宽小至1.2 nm且阈值为105 nJ/脉冲（相当于44 μJ/cm²）的有机激光器。基于蒽的PhAnMBf材料展示了HLCT发光体作为OSSL的潜力。
