发光学报2024，Vol.45Issue(8)：1343-1353,11.DOI:10.37188/CJL.20240127
基于多功能苯乙基溴化铵修饰层的喷墨打印钙钛矿量子点发光二极管
Inkjet Printed Perovskite Quantum Dot Light-emitting Diodes Based on Multifunctional Phenethylammonium Bromide Modification Layer
摘要
Abstract
Inkjet printing technology of perovskite quantum dots(PQD) hold great potential in full-color display ap-plications,but several key issues still affect their efficiency,such as unbalanced charge carrier injection,low-quali-ty perovskite films,and non-radiative recombination pathways of PQDs themselves.To address these issues,we in-troduce an interface improvement layer of Phenethylammonium bromide(PEABr) to balance the charge carrier trans-port in devices.PEABr has a similar structure to the binary solvent of perovskite(toluene,naphthalene),which can improve the printing characteristics and film-forming ability of PQDs and effectively passivate the Br-vacancies and interface defects of PQD films.Based on this strategy,we successfully achieved inkjet-printed perovskite quantum dot light-emitting diodes(PeLEDs) with a maximum external quantum efficiency(EQE) of 8.82％ and a current effi-ciency(CE) of 29.15 cd/A at a brightness of 414 cd/m²,providing beneficial insights for inkjet printing technology in future display applications.关键词
钙钛矿量子点/喷墨打印/电致发光器件/界面修饰Key words
perovskite quantum dots/inkjet printing/light-emitting devices/interface modification分类
信息技术与安全科学引用本文复制引用
陈逸群,林立华,胡海龙,李福山..基于多功能苯乙基溴化铵修饰层的喷墨打印钙钛矿量子点发光二极管[J].发光学报,2024,45(8):1343-1353,11.基金项目
国家重点研究与发展计划(2022YFB3606500) （2022YFB3606500）
国家自然科学基金(62075043)Supported by National Key Research and Development Program of China(2022YFB3606500) （62075043）
National Natural Science Foun-dation of China(62075043) （62075043）
