| Autor: |
Li, Yin-Xiang, Liu, Wei, Yu, Meng-Na, Dong, Xue-Mei, Ou, Chang-Jin, Eginligil, Mustafa, Li, Rui-Qing, Zhang, Xin-Wen, Nie, Yi-Jie, Xie, Ling-Hai, Xu, Chun-Xiang, Liu, Ju-Qing, Huang, Wei |
| Zdroj: |
Journal of Materials Chemistry C; 3/7/2021, Vol. 9 Issue 9, p3171-3176, 6p |
| Abstrakt: |
Here, a wide-bandgap organic nanocrystal is constructed from a steric-functionalized difluorene-based organic semiconductor material 2,2′-bi(9,9′-dimethylfluorene) (BMeF). The synthetic nanocrystal presents superior photoelectric integrated properties, with crystallization-enhanced emission and absolute photoluminescence quantum yield (PLQY) up to 75%, high mobility (0.18 cm2 V−1 s−1), and low threshold dual-color lasing behavior from ultraviolet (392 nm) to deep-blue (415 nm). Moreover, organic light-emitting diodes (OLEDs) based on BMeF nanocrystals show deep-blue emission with a brightness of 1152 cd m−2 and turn-on voltage of 2.8 V. This work opens an avenue for high-performance wide-bandgap organic nanocrystals capable of outstanding shortwave emission and high charge mobility. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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