共掺杂PEDOT∶PSS薄膜改善有机电致发光器件性能  

The Performance of OLEDs Improved by Co-doping PEDOT∶PSS Films

作　　者：苏斌[1] 綦旺 周宇萌 张璐 王一凡 朱恩伟[1] 刘春波[1] 车广波 SU Bin;QI Wang;ZHOU Yumeng;ZHANG Lu;WANG Yifan;ZHU Enwei;LIU Chunbo;CHE Guangbo(Jilin Normal University/Key Laboratory of Preparation and Application of Environmental Friendly Materials,Chinese Ministry of Education,Changchun 130103,China;Baicheng Normal University,College of Chemistry,Baicheng 137000,China)

机构地区：[1]吉林师范大学环境友好材料制备与应用教育部重点实验室,长春130103 [2]白城师范学院化学学院,白城137000

出　　处：《华南师范大学学报（自然科学版）》2023年第3期32-38,共7页Journal of South China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(61405071);吉林省人社厅项目(2021Y019,2021Z007)。

摘　　要：为了克服PEDOT∶PSS作为空穴注入层时强酸性和低导电性的问题,采用将适量咪唑和碘化铯共掺杂于PEDOT∶PSS的方法,制备了高效有机电致发光器件(OLEDs)。结果表明:有效调节PEDOT∶PSS的酸碱性,可提高PEDOT∶PSS的空穴注入能力,使载流子传输更加平衡。与纯PEDOT∶PSS作空穴注入层的OLEDs相比,优化后器件的最大亮度和电流效率分别提高了30%和31%。该研究为掺杂PEDOT∶PSS为空穴注入层在OLEDs领域的研究提供了理论和实验参考。In order to overcome the problems of strong acidity,low conductivity of PEDOT∶PSS which as hole injection layer in OLEDs,an appropriate amount of imidazole and cesium iodide was co-doping into PEDOT∶PSS to prepare efficient OLEDs.The results show that co-doping can effectively adjust the acidity and alkalinity of PEDOT∶PSS,improve the hole injection capacity of PEDOT∶PSS,so that the carrier transport is more balanced.Compared with OLEDs with pure PEDOT∶PSS as hole injection layer,the maximum luminance and current efficiency of the optimized device are increased by 30%and 31%,respectively.This study provides theoretical and experimental reference for the research of doping PEDOT∶PSS as hole injection layer in the field of OLEDs.

关 键 词：有机电致发光器件 空穴注入层 共掺杂 电流效率 亮度 

分 类 号：O649.5[理学—物理化学]