发光学报2026，Vol.47Issue(6)：901-908,8.DOI:10.37188/CJL.20260028
等离子表面改性实现原位生长高分辨率钙钛矿发光二极管
Plasma Surface Modification for High-resolution in situ Growth of Perovskite Light-emitting Diode
摘要
Abstract
Quasi-two-dimensional perovskites,with their excellent optoelectronic properties,high luminous effi-ciency,and solution-processable characteristics,have become ideal materials for next-generation high-resolution dis-plays.However,in high-resolution display applications,traditional patterning techniques struggle to balance high resolution,high fidelity,and the quality of perovskite films.Printing technology has limited resolution and is prone to the'coffee-ring'effect.Photolithography carries the risk of light-induced damage and involves complex process-es.Laser direct writing is costly and has low material utilization.To address this,we propose a high-resolution pat-terning strategy based on thermal nanoimprinting combined with hydrophilic-hydrophobic template-induced crystalli-zation.By using plasma surface modification to create a honeycomb polymethyl methacrylate(PMMA)film with con-trasting wettability,we leverage interfacial energy gradients to drive the selective localized growth of perovskite pre-cursor solutions in predefined hydrophilic areas,achieving perovskite microarrays with clear boundaries and uniform density.The high-resolution perovskite light-emitting diodes(PeLEDs)fabricated using this method show an emission peak at 527 nm,a maximum external quantum efficiency(EQE)of 7.24％,and a maximum brightness of 9 474 cd·m-2.This work provides a patterning approach for the fabrication of high-performance perovskite micro-displays that combines high resolution,simple processing,and excellent film quality.关键词
钙钛矿/原位生长/高分辨率/图案化/结晶调控Key words
perovskite/in situ growth/high-resolution/patterning/crystal control分类
信息技术与安全科学引用本文复制引用
范诗怡,郑悦婷,陈旭文,陈博文,陈伟国,杨开宇..等离子表面改性实现原位生长高分辨率钙钛矿发光二极管[J].发光学报,2026,47(6):901-908,8.基金项目
国家重点研发计划(2022YFB3606500) （2022YFB3606500）
国家自然科学基金(62575071,62305063) （62575071,62305063）
福建省自然科学基金(2023J01257)Supported by National Key R&D Program of China(2022YFB3606500) （2023J01257）
National Natural Science Foundation of China(62575071,62305063) （62575071,62305063）
Provincial Natural Science Foundation of Fujian(2023J01257) （2023J01257）
