光致发光
材料科学
背光
色域
量子产额
液晶显示器
纳米颗粒
聚苯乙烯
钙钛矿(结构)
光电子学
纳米技术
光学
化学工程
荧光
聚合物
复合材料
物理
工程类
作者
Qiao Huang,Wenya Chen,Xiaojuan Liang,Chunyan Lv,Weidong Xiang
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2023-06-16
卷期号:11 (26): 9773-9781
被引量:3
标识
DOI:10.1021/acssuschemeng.3c01873
摘要
All-inorganic perovskite CsPbX3 (X = Cl, Br, I) nanocrystals (NCs) have generated significant attention in the emerging display industry because of their narrow-band emission, high color purity, and facile preparation and processing. By controlling the deposition of Ag nanoparticles in the B–Si–Zn glass matrix, CsPbBrI2 NC glass with significantly enhanced photoluminescence (PL) intensity (about 6.3 times) was successfully prepared, and the photoluminescence quantum yield (PLQY) is increased from 12.4% to 36.9%. More meaningfully, the high-performance glass powders were incorporated into polystyrene (PS) films through solution and blending techniques, and the films prepared by the latter had superior color coordinates and environmental stability, particularly the intense blue light stability. Under conditions of 60 °C, 90% relative humidity (RH), and 10 000 nit blue light irradiation for 40 d, the PL intensity decline rate of blended film does not exceed 5%. In addition, the light conversion film based on Ag@CsPbBrI2 glass with CsPbBr3 glass powders exhibits a wide color gamut of 125.2% of the NTSC 1953 standard, which shows richer colors than commercial displays on the liquid crystal display (LCD) screen, further opening the space for the development of the quantum dot film industry.
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