Liu Dan, De Jianbo, Gao Haikuo, Ma Suqian, Ou Qi, Li Shuai, Qin Zhengsheng, Dong Huanli, Liao Qing, Xu Bin, Peng Qian, Shuai Zhigang, Tian Wenjing, Fu Hongbing, Zhang Xiaotao, Zhen Yonggang, Hu Wenping
Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
J Am Chem Soc. 2020 Apr 1;142(13):6332-6339. doi: 10.1021/jacs.0c00871. Epub 2020 Mar 24.
Here, we design and synthesize an organic laser molecule, 2,7-diphenyl-9-fluorene (LD-1), which has state-of-the-art integrated optoelectronic properties with a high mobility of 0.25 cm V s, a high photoluminescence quantum yield of 60.3%, and superior deep-blue laser characteristics (low threshold of = 71 μJ cm and = 53 μJ cm and high quality factor () of ∼3100 and ∼2700 at emission peaks of 390 and 410 nm, respectively). Organic light-emitting transistors based on LD-1 are for the first time demonstrated with obvious electroluminescent emission and gate tunable features. This work opens the door for a new class of organic semiconductor laser molecules and is critical for deep-blue optical and laser applications.
在此，我们设计并合成了一种有机激光分子，即2,7 - 二苯基 - 9 - 芴（LD - 1），它具有先进的集成光电特性，迁移率高达0.25 cm² V⁻¹ s⁻¹，光致发光量子产率高达60.3%，并且具有优异的深蓝激光特性（在390和410 nm发射峰处的低阈值分别为71 μJ cm⁻²和53 μJ cm⁻²，以及高质量因子（Q）分别约为3100和2700）。首次展示了基于LD - 1的有机发光晶体管具有明显的电致发光发射和栅极可调特性。这项工作为一类新型有机半导体激光分子打开了大门，对于深蓝光学和激光应用至关重要。
