发光学报2026，Vol.47Issue(5)：846-853,8.DOI:10.37188/CJL.20260021
基于纳米压印和热调控转印的高分辨率量子点发光二极管
High-resolution Quantum Dot Light-emitting Diodes Based on Nanoimprint Lithography and Thermal-regulated Transfer Printing
摘要
Abstract
Quantum dot light-emitting diodes(QLEDs),renowned for their high color purity,wide color gamut,and solution processability,are considered a pivotal technology for next-generation high-resolution displays.Howev-er,achieving high-resolution patterning without compromising the optical properties of quantum dots(QDs)remains a critical challenge hindering their practical application.Addressing this patterning bottleneck in high-resolution QLEDs fabrication,this work presents a novel patterning strategy based on nanoimprint lithography and thermally regulated transfer printing.The proposed method involves fabricating honeycomb microstructures on a polyvinyl buty-ral(PVB)surface using a silicon template,followed by selective filling of QDs controlled by solution wettability.Through a subsequent thermal-regulated transfer process,highly uniform QDs arrays with a feature size as small as 1.5 µm and a resolution of 9 072 pixels per inch(PPI)are successfully prepared.By employing higher-resolution templates,we have further achieved QDs array with a maximum pixel density of 25 400 PPI.Furthermore,we suc-cessfully fabricated high-resolution red QLEDs device(9 072 PPI)by integrating the QDs array onto hole trans-port layer(HTL),achieving a maximum external quantum efficiency(EQE)of 10.91%and a peak luminance of 164 421 cd/m².This work provides a stable and reproducible patterning pathway for the fabrication of high-resolution QLEDs.关键词
量子点发光二极管(QLEDs)/高分辨率/纳米压印/热调控转印Key words
quantum dot light-emitting diodes(QLEDs)/high-resolution/nanoimprint/thermal regulated transfer printing分类
信息技术与安全科学引用本文复制引用
谢潇婷,林海燕,赵宇森,陈伟国,杨开宇..基于纳米压印和热调控转印的高分辨率量子点发光二极管[J].发光学报,2026,47(5):846-853,8.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）
