基于全无机钙钛矿量子点的465 nm发光研究
The 465 nm light emission based on all-inorganic perovskite quantum dots
许理云 1徐公杰1
作者信息
- 1. 上海理工大学 光电信息与计算机工程学院,上海 200093
- 折叠
摘要
为了对标Rec.2020 蓝光标准:中心波长为(465±3)nm,半高全宽小于 20 nm,色域坐标为(0.131,0.046),分别采用调节卤素法、离子交换法和调节八面体层数法制备了蓝色发光体系,研究了全无机钙钛矿量子点在Rec.2020 蓝光标准的表现.结果表明,调节卤素比例获得的CsPbCl1.5Br1.5 的发光波长、单色性和发光强度等性能最佳,其中心波长为 463.9 nm,半高全宽为 18.6 nm,色域坐标为(0.137,0.041).为进一步开发基于全无机钙钛矿体系的高清蓝色发光器件及显示系统奠定了材料合成方面的基础.
Abstract
The Rec.2020 blue light-emitting standard requires the center wavelength is(465±3)nm,and the full width at half maxima(FWHM)is less than 20 nm,and the color gamut coordinate is(0.131,0.046).To benchmark the standard,the performance of all inorganic perovskite quantum dots was investigated.The various blue light-emitting series were synthesized via the methods of adjusting halogen ratio,ion-exchange,and adjusting the number of octahedral layers,respectively.Their performances for Rec.2020 blue light-emitting standard were discussed comprehensively.The results indicate that the CsPbCl1.5Br1.5 obtained by adjusting the halogen ratio has the best performance in terms of light-emitting wavelength,monochromaticity,luminescence efficiency,etc.,with a center wavelength of 463.9 nm,an FWHM of 18.6 nm,and a color gamut coordinate of(0.137,0.041).This work lays a foundation for the further development of high-definition blue light emitting devices and display systems based on all-inorganic perovskite systems.
关键词
钙钛矿/量子点/蓝色发光/Rec.2020标准Key words
perovskite/quantum dot/blue-light emitting/Rec.2020 standard引用本文复制引用
出版年
2024
NETL
NSTL
万方数据