Wan Yuejuan, Deng Jian, Wu Wanling, Zhou Jiadong, Niu Quan, Li Haoyuan, Yu Huakang, Gu Cheng, Ma Yuguang
State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, No. 381 Wushan Road, Tianhe District, Guangzhou 510640, P. R. China.
School of Physics and Optoelectronics, South China University of Technology, No. 381 Wushan Road, Tianhe District, Guangzhou 510640, P. R. China.
ACS Appl Mater Interfaces. 2020 Sep 30;12(39):43976-43983. doi: 10.1021/acsami.0c12842. Epub 2020 Sep 17.
A cyano-substituted styrene derivative is synthesized and successfully prepared to lamellate single crystals through precisely controlling the crystal growth conditions. The lamellate single crystals with regular edge and smooth surface display intrinsically ordered stacking and high quality, all of which are of importance for high optoelectronic performance. The single-component light-emitting transistors based on the lamellate crystals offer striking device performance in terms of record external quantum efficiency of 2.02%, exceeding the benchmark value in this field. Such organic light-emitting single crystals provide a versatile platform for designing and engineering their structures and optoelectronic properties toward light-emitting devices.
合成了一种氰基取代的苯乙烯衍生物，并通过精确控制晶体生长条件成功制备出层状单晶。具有规则边缘和光滑表面的层状单晶呈现出内在的有序堆积且质量高，所有这些对于高光电性能都很重要。基于层状晶体的单组分发光晶体管在创纪录的2.02%的外量子效率方面表现出惊人的器件性能，超过了该领域的基准值。这种有机发光单晶为设计和改造其结构以及针对发光器件的光电特性提供了一个通用平台。
