高等学校化学学报2021，Vol.42Issue(4)：1260-1267,8.DOI:10.7503/cjcu20200478
可控液体输运制备取向聚合物薄膜:面向性能增强的发光二极管
Controllable Liquid Transfer for Preparing Oriented Polymer Thin Films:Toward the Enhanced Performance of PLED
摘要
Abstract
We demonstrated a facile solution process guided by the conical fibers array(CFA),based on which bulky polydiarylfluorene(PODPF)were oriented on substrate.After thermal annealing at ca.240℃,PODPF changed from the amorphous-phase to compact π-π stacking β-phase,leading to a PODPF film with higher orientations and larger crystallized sizes.It is proposed that the CFA enables finely controlling the wet-ting and dewetting processes under directional stress,guiding the disorganized polymer transform into orienta-tion.Using the as-prepared PODPF films as the active layer,a polymer light-emitting diodes(PLEDs)device was developed,which exhibited higher current efficiency of 1.53 cd/A(5.6 V)and more stable electrolumines-cence compared with that of the spin-coating one.We envision that the as-developed approach offers new inspi-ration for fabricating high-performance polymer films.关键词
锥形纤维/共轭高分子/取向性有机薄膜/聚合物发光二极管Key words
Conical fiber/Conjugated polymer/Oriented organic thin film/Polymer light-emitting diode分类
化学化工引用本文复制引用
孟利利,陈琳琳,张小亮,解令海,刘欢..可控液体输运制备取向聚合物薄膜:面向性能增强的发光二极管[J].高等学校化学学报,2021,42(4):1260-1267,8.基金项目
国家重点研发计划项目(批准号:2018YFA0704801)和国家自然科学基金(批准号:21872002)资助.This paper is supported by the National Key R&D Program of China(No.2018YFA0704801)and the National Natural Science Foundation of China(No.21872002). （批准号:2018YFA0704801）
