发光学报2025，Vol.46Issue(4)：658-664,7.DOI:10.37188/CJL.20250003
BN量子点与双戊酸协同诱导生长的Rec.2020标准绿光CsPbBr3纳米晶复合材料
Rec.2020 Standard Green Light Emitting CsPbBr3 Nanocrystal Composites Based on Synergistic Induction Growth of BNQD and Glutaric Acid
摘要
Abstract
CsPbBr3 perovskite nanocrystals possess outstanding green light emission and low-cost preparation,mak-ing them important materials that are expected to meet the color gamut requirements for ultra-high-definition displays.However,due to the influence of multiple factors such as the elemental composition ratio and size control,it is difficult for CsPbBr3 perovskite nanocrystals to form narrow green light emission near 530 nm,thus resulting in a significant de-viation from the standard green light required by the Rec.2020 color gamut.In this work,CsPbBr3@BNQD nanocrystal composites were synthesized by introducing boron nitride quantum dots(BNQD)and glutaric acid ligands into the pre-cursor solution of ligand-assisted reprecipitation to synergistically induce the growth of nanocrystals.The anchoring effect of glutaric acid ligands on the surface of nanocrystals and the wide bandgap characteristics of BNQD nanocrys-tals enable the prepared CsPbBr3@BNQD nanocrystal composites to exhibit narrow green light emission at 525 nm with a full width at half maximum(FWHM)of 15.9 nm and a high luminous efficiency of 78％.Moreover,its CIE coordinates(0.161,0.790)basically coincide with the standard green coordinates of Rec.2020.In addition,the CsPbBr3@BNQD nanocrystal composites demonstrate good aging stability in the LED on-chip packaging application,providing an effective solution for the standard green light technology in ultra-high-definition displays.关键词
钙钛矿纳米晶体/氮化硼量子点/复合材料/Rec.2020标准绿光Key words
perovskite nanocrystals/boron nitride quantum dots/composite materials/Rec.2020 standard green light分类
数理科学引用本文复制引用
刘汉强,涂永华,魏俊青,谢杨杨..BN量子点与双戊酸协同诱导生长的Rec.2020标准绿光CsPbBr3纳米晶复合材料[J].发光学报,2025,46(4):658-664,7.基金项目
天津市自然科学基金(22JCQNJC00910) （22JCQNJC00910）
天津理工大学校级研究生科研创新实践项目(YJ2319)Supported by Natural Science Foundation of Tianjin City(22JCQNJC00910) （YJ2319）
Graduate Research Innovation Practice Project of the Tianjin University of Technology(YJ2319) （YJ2319）
