Mesoporous Silica Particles Integrated with All-Inorganic CsPbBr3 Perovskite Quantum-Dot Nanocomposites (MP-PQDs) with High Stability and Wide Color Gamut Used for Backlight Display

被引：790

作者：

Wang, Hung-Chia ^{[1
]}

Lin, Shin-Ying ^{[1
]}

Tang, An-Cih ^{[1
]}

Singh, Bheeshma Pratap ^{[1
]}

Tong, Hung-Chun ^{[4
]}

Chen, Ching-Yi ^{[4
]}

Lee, Yu-Chun ^{[4
]}

Tsai, Tzong-Liang ^{[4
]}

Liu, Ru-Shi ^{[1
,2
,3
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Natl Taipei Univ Technol, Dept Mech Engn, Taipei 106, Taiwan

[3] Natl Taipei Univ Technol, Grad Inst Mfg Technol, Taipei 106, Taiwan

[4] Lextar Elect Corp, Hsinchu 300, Taiwan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 28期

关键词：

all-inorganic perovskite quantum dots; backlight; light emitting diode; white light; LIGHT-EMITTING-DIODES; OPTICAL-PROPERTIES; ANION-EXCHANGE; SOLAR-CELLS; NANOCRYSTALS; EFFICIENT; LUMINESCENCE; EMISSION; CSPBX3; GREEN;

D O I：

10.1002/anie.201603698

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

All-inorganic CsPbX3 (X=I, Br, Cl) perovskite quantum dots (PQDs) have been investigated because of their optical properties, such as tunable wavelength, narrow band, and high quantum efficiency. These features have been used in light emitting diode (LED) devices. LED on-chip fabrication uses mixed green and red quantum dots with silicone gel. However, the ion-exchange effect widens the narrow emission spectrum. Quantum dots cannot be mixed because of anion exchange. We address this issue with a mesoporous PQD nanocomposite that can prevent ion exchange and increase stability. We mixed green quantum-dot-containing mesoporous silica nanocomposites with red PQDs, which can prevent the anion-exchange effect and increase thermal and photo stability. We applied the new PQD-based LEDs for backlight displays. We also used PQDs in an on-chip LED device. Our white LED device for backlight display passed through a color filter with an NTSC value of 113% and Rec. 2020 of 85%.

引用

页码：7924 / 7929

页数：6

共 27 条

[1] Ce-Doped YAG Nanophosphor and Red Emitting CuInS2/ZnS Core/Shell Quantum Dots for Warm White Light-Emitting Diode with High Color Rendering Index [J].