发光学报2020，Vol.41Issue(3)：233-240,8.DOI:10.3788/fgxb20204103.0233
基于CsPbBr3钙钛矿量子点的高柔性绿光发光二极管
Highly Flexible Green Light-emitting Diode Based on CsPbBr3 Perovskite Quantum Dots
摘要
Abstract
Flexible information displays have the promising potential for the future optoelectronic application. How-ever, achieving the highly efficient and stable flexible light-emitting diodes ( LEDs) is still a big challenge due to the limited choices of electrode materials and flexible substrates. Herein, the flexible perovskite light-emitting diodes ( Pe-LEDs) by combining the flexible substrate based on a photopolymer with the CsPbBr3 quantum dots ( QDs) emit-ting layer were fabricated. In order to improve electrons injection and transport, Ag was used as the cathode. As a re-sult, the green light emitting Pe-LEDs with high luminance of 10325 cd·m-2 and high color purity with the full-width-at-half-maximum ( FWHM) of 19 nm were obtained. In addition, the Pe-LEDs exhibit good flexibility and me-chanical ductility, and the as-prepared flexible device still maintains its optoelectronic performance even after repeat-ed bending 100 cycles under a bending angle of about 180°. The research presents a further step toward the future ap-plication of flexible displays.关键词
CsPbBr3量子点/光聚合物/银电极/柔性发光二极管Key words
CsPbBr3 QDs/photopolymer/Ag electrode/flexible light-emitting diode分类
数理科学引用本文复制引用
郭洁,陆敏,孙思琪,胡强,张佳,白雪..基于CsPbBr3钙钛矿量子点的高柔性绿光发光二极管[J].发光学报,2020,41(3):233-240,8.基金项目
国家自然科学基金(61822506,11674127,1197414) （61822506,11674127,1197414）
国家重点研发项目(2017YFB0403601)资助Supported by National Natural Science Foundation of China(61822506,11674127,1197414) （2017YFB0403601）
National Key Research and Devel-opment Program of China(2017YFB0403601) （2017YFB0403601）
