摘要
在光电显示领域中,量子点发光二极管(quantum dots light-emitting diode,QLED)因其宽的光谱可调性、窄的半峰全宽、高的色纯度等优异性能而受到广泛关注,并被认为是下一代显示技术极为突出的候选者。目前,镉基QLED的红、绿、蓝三色发光性能已十分接近有机发光二级管的水平,但是镉元素对人体及环境具有严重的危害性。InP量子点具有较大的激子波尔半径、宽的光谱可调性(可覆盖整个可见光区)以及与镉基量子点相媲美的光电性质,而成为最有望替代镉基量子点的环境友好型量子点。因此,本文详细总结了近年来InP量子点的合成(核壳的结构、配体的选择等)与荧光性能及其QLED发光性能等方面的研究进展,并对InP QLED所面临的问题、挑战及其可行性解决方案进行了讨论和展望。
In the field of optoelectronic display,quantum dot(QD)display has attracted intensive attention due to its wide spectral adjustability,narrow full width at half maxima(FWHM),high color purity and other excellent properties,which is considered to be an outstanding candidate for the next generation of display technology.The performance of quantum dots light-emitting diodes(QLEDs)has been rapidly improved,and especially the red,green and blue cadmium-based QLEDs all show comparable luminescent performance to organic light emitting diodes(OLED).However,cadmium is a seriously hazard to human body and environment and violates sustainable development path.Therefore,researchers pay more attention to environment-friendly quantum dot materials,among which InP quantum dot with the outstanding properties such as large Bohr radius,wide spectral adjustability and so on has become the most promising environment-friendly material to replace cadmium-based quantum dots.In this work,the recent progress about the synthesis and photoluminescence performance of InP quantum dots(core-shell structure,ligand selection,etc.)and the luminescent performance of InP QLED are summarized,and the current problems and challenges as well as the feasible solutions in InP QLED are discussed and outlooked.
作者
王璞
蔡平
张小文
许伟
张观广
姚日晖
宁洪龙
郑华
WANG Pu;CAI Ping;ZHANG Xiao-wen;XU wei;ZHANG Guan-guang;YAO Ri-hui;NING Hong-long;ZHENG Hua(School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China;School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China;School of Electronic Engineering and Intelligence, Dongguan University of Technology, Dongguan 523000, China)
出处
《液晶与显示》
CAS
CSCD
北大核心
2021年第10期1341-1351,共11页
Chinese Journal of Liquid Crystals and Displays
基金
广东省重点领域研发计划(No.2019B010924001)
国家自然科学基金(No.52063010,No.62065004)
广西自然科学基金重点项目(No.2018GXNSFDA294002)。
关键词
环境友好型量子点
磷化铟
荧光量子产率
量子点发光二极管
发光性能
environmental-friendly quantum dots
InP
photoluminescence quantum yield
quantum dots light-emitting diodes
luminescent performance
