Organic photoelectric small molecule containing [1, 2, 5] thiadiazole [3, 4-g] quinoxaline structure and preparation method and application thereof

• Main Authors: JIANG YADONG, YUAN LIU, GU DE'EN, TAI HUILING, LI WEIZHI, WANG YANG, LIU QINGXIA, DENG YUNXIANG
• Format: Patent
• Language: Chinese; English
• Published: 04.11.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; SEMICONDUCTOR DEVICES

The invention aims to provide an organic photoelectric small molecule with a [1, 2, 5] thiadiazole [3, 4-g] quinoxaline structure as well as a preparation method and application thereof, and belongs to the technical field of organic photoelectric materials. The organic photoelectric small molecule is formed by taking a quinone unit [1, 2, 5] thiadiazole [3, 4-g] quinoxaline with a strong electron deficiency characteristic as a center, taking a cyclopentadithiophene structural unit as a connection and taking 2-(2-methylene-3-oxo-2, 3-dihydro-1H-indene-1-subunit) malononitrile as a tail end. The absorption spectrum range of the organic photoelectric small molecule exceeds 1.4 [mu] m, and the organic photoelectric small molecule has good planarity, can form good conjugation and has high crystallinity. 本发明的目的在于提供一种具有[1,2,5]噻二唑[3,4-g]喹喔啉结构的有机光电小分子及其制备方法和应用，属于有机光电材料技术领域。该有机光电小分子以强缺电子特征的醌式单元[1,2,5]噻二唑[3,4-g]喹喔啉为中心，以环戊二噻吩结构单元为连接，以2-(2-亚甲基-3-氧代-2,3-二氢-1H-茚-1-亚基)丙二腈为末端构成。该有机光电小分子吸收光谱范围超过1.4μm，同时具有良好的平面性，且可以形成良好的共轭，具有高结