摘要
目的:研究基于聚集诱导发射(AIE)小分子发射体的薄膜的光学性能,及相应发光电化学池(LECs)的光电性能。方法:采用溶液合成法配制的含有AIE小分子2,3-二([1,1′-联苯]-4-基)苯并[b]噻吩S,S-二氧化物(DBP-BTO)的前驱体溶液制备薄膜,并在薄膜上热蒸发金属电极制备LECs器件,对制备完成的薄膜及LECs器件进行光电性能表征。结果:DBP-BTO基固体薄膜的青光发射中心位于490 nm。不同掺杂比例DBP-BTO基薄膜的SEM测试表明,掺杂比例为8∶8∶1的薄膜孔洞缺陷较小,基于DBP-BTO基薄膜的LECs器件电致发光峰值亮度高达166 cd·m^(2)。结论:这项工作将对今后基于AIE有机小分子设计性能优良的新型LECs器件的研究工作有所帮助。
Aims: This paper studies of the optical properties of thin films based on aggregation-induced emission(AIE) small molecule emitters and the optoelectronic properties of the corresponding light-emitting electrochemical cells(LECs). Methods: Thin films were prepared by solution synthesis of precursor solutions containing AIE small molecule 2,3-Di([1,1′-biphenyl]-4-yl)benzo[b]thiophene S,S-dioxide(DBP-BTO);and LECs devices were fabricated by thermal evaporation of metal electrodes on the films. The prepared films and LECs devices were characterized for optoelectronic properties. Results: The cyanine emission center of DBP-BTO-based solid films was located at 490 nm. The SEM tests of DBP-BTO-based films with various doping ratios showed that the doping ratio of 8∶8∶1 had smaller hole defects;and the peak electroluminescence of LECs based on DBP-BTO-based films was high up to 166 cd·m^(2). Conclusions: This work is useful for future research work on the design of novel LECs devices with superior performance based on AIE organic small molecules.
作者
张淘淘
徐睿
康娟
李睿思
陈亮
ZHANG Taotao;XU Rui;KANG Juan;LI Ruisi;CHEN Liang(Colege of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China;Colege of Commandand Control Engineering,Army Engineering University of PLA,Nanjing 210007,China)
出处
《中国计量大学学报》
2022年第2期204-210,234,共8页
Journal of China University of Metrology
基金
国家自然科学基金项目(No.61904168)
浙江省属高校基本科研业务费专项项目(No.2021YW19,2021YW75)。
关键词
发光电化学池
青光发射
聚集诱导发射
电致发光
薄膜
light-emitting electrochemical cells
cyanine emission
aggregation-induced emission
electroluminescence
films
