极性溶剂掺杂和后处理协同改善PEDOT:PSS电极及其在PeLEDs中的应用  

Synergistic Improvement of PEDOT:PSS Electrode by Polar Solvent Doping and Post-Treatment and Its Application in PeLEDs

作　　者：袁俊钊 刘国栋 吴俊凯[1,2,3,4,5] 王要李 陶梦欣 YUAN Jun-zhao;LIU Guo-dong;WU Jun-kai;WANG Yao-li;TAO Meng-xin(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science and Technology,Xi’an 710021,China;Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development,Shaanxi University of Science and Technology,Xi’an 710021,China;Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry,Shaanxi University of Science and Technology,Xi’an 710021,China;Key Laboratory of Paper-based Functional Materials of China National Light Industry,Shaanxi University of Science and Technology,Xi’an 710021,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,西安710021 [2]陕西科技大学轻化工程国家级实验教学示范中心,西安710021 [3]陕西科技大学陕西省造纸技术及特种纸品开发重点实验室,西安710021 [4]陕西科技大学中国轻工业功能印刷与运输包装重点实验室,西安710021 [5]陕西科技大学中国轻工业纸基功能材料重点实验室,西安710021

出　　处：《印刷与数字媒体技术研究》2025年第1期154-162,共9页Printing and Digital Media Technology Study

基　　金：国家自然科学基金项目(No.22078186)。

摘　　要：聚(3,4-乙烯二氧噻吩):聚苯乙烯磺酸盐(PEDOT:PSS)作为高导电率、高光透过率的电极材料引起了业界的广泛关注。本研究通过极性溶剂掺杂和后处理协同改善的方式对PEDOT:PSS进行材料改性,研究了甲酰胺(FA)、二甲基亚砜(DMSO)和N,N-二甲基甲酰胺(DMF)三种极性不同的溶剂掺杂、后处理以及薄膜厚度对薄膜电导率、光透过率及薄膜均匀性的影响。研究表明,FA掺杂增强了PEDOT:PSS在溶剂中的分散,提高了成膜均匀性。在最佳成膜厚度条件下,FA掺杂、后处理的薄膜达到电导率1084.5S/cm、光透过率91.86%的最佳性能。基于钙钛矿发光二极管(PeLEDs)的原理,本研究以最佳PEDOT:PSS电极薄膜为底部阳极,制备了PeLEDs器件。该器件最大亮度为3246.5cd/m2,最大电流效率为5.46cd/A,表明所制备的PEDOT:PSS电极薄膜在钙钛矿光电器件领域具有显著的应用潜力。Poly(3,4-ethylenedioxythiophene):Polystyrene sulfonate(PEDOT:PSS)has attracted widespread attention as an electrode material with high conductivity and high light transmittance.In this study,PEDOT:PSS was modified by synergistic improvement of polar solvent doping and post-treatment.The effects of three solvents with different polarities,namely formamide(FA),dimethyl sulfoxide(DMSO),and N,N-dimethylformamide(DMF),doping,posttreatment,and film thickness on film conductivity,light transmittance,and film uniformity were investigated.The result showed that FA doping enhances the dispersion of PEDOT:PSS in solvents and improves the uniformity of film formation.At the optimal film thickness,the thin film doped with FA and subjected to post-treatment achieved the best performance with a conductivity of 1084.5 S/cm and a light transmittance of 91.86%.Based on the principle of perovskite light-emitting diodes(PeLEDs),PeLEDs devices were prepared using the optimal PEDOT:PSS electrode film as the bottom anode.The maximum brightness of the device is 3246.5 cd/m2,and the maximum current efficiency is 5.46 cd/A,indicating that the prepared PEDOT:PSS electrode film has significant application potential in the field of perovskite optoelectronic devices.

关 键 词：极性溶剂 协同改善 PEDOT:PSS 钙钛矿发光二极管 

分 类 号：TS801.9[轻工技术与工程] TB383.2[一般工业技术—材料科学与工程]