Facile room-temperature synthesis of highly air-stable and moisture-resistant CsPbX3/SiO2 nanocomposites for tunable white light-emitting diodes

被引：7

作者：

Chao, Li-Wei ^{[1
]}

Tang, Jian-Fu ^{[1
]}

Lin, Shih-Hung ^{[2
]}

Lee, Yi-Ting ^{[3
]}

Chen, Yi-Lun ^{[4
,5
]}

Hsieh, Cheng-Ho ^{[4
,5
]}

Chen, Lung-Chien ^{[1
]}

Tseng, Zong-Liang ^{[4
,5
]}

机构：

[1] Natl Taipei Univ Technol, Dept Electroopt Engn, 1,Sec 3,Chung Hsiao E Rd, Taipei 106, Taiwan

[2] Natl Yunlin Univ Sci & Technol, Dept Elect Engn, Touliu 64002, Yunlin, Taiwan

[3] Kyushu Univ, Ctr Organ Photon & Elect Res OPERA, 744 Motooka, Nishi, Fukuoka 8190395, Japan

[4] Ming Chi Univ Technol, Dept Elect Engn, 84 Gungjuan Rd, New Taipei 24301, Taiwan

[5] Ming Chi Univ Technol, Organ Elect Res Ctr, 84 Gungjuan Rd, New Taipei 24301, Taiwan

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2021年 / 136卷

关键词：

Perovskite QDs; SiO2; Stability; White LED; WIDE COLOR GAMUT; PEROVSKITE QUANTUM DOTS; ANION-EXCHANGE; HIGH-STABILITY; LEDS; NANOCRYSTALS; EFFICIENCY;

D O I：

10.1016/j.mssp.2021.106158

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

All inorganic perovskite quantum dots (PQDs) and perovskite CsPbX3/SiO2 nanocomposites (PNCs) have shown their potentials for optical and lighting applications. We demonstrate a one-step approach to synthesize PQDs and PNCs more simply and effectively at room temperature in the open air. The resulting PNCs can show a narrow emission in the PL spectra and high stability under ambient conditions. In particular, both green CsPbBr3/SiO2 and red CsPbI3-xBrx/SiO2 PNCs can be obtained by employing this easy and low-cost method. Even, the SiO2 protection can also effectively prevent the halide exchange reaction between green and red PNCs, meaning the capability for white light applications. The resulting white light-emitting diodes (WLEDs) based on the green and red PNCs coated on the blue LED have a white Commission Internationale del' Enclairage (CIE) coordinates of (0.375, 0.362) and a low correlated color temperature (CCT) of 4054 K.

引用

页数：7

共 24 条

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[22] Room temperature synthesis of stable single silica-coated CsPbBr3 quantum dots combining tunable red emission of Ag-In-Zn-S for High-CRI white light-emitting diodes
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[23] Room-temperature synthesis of blue-emissive zero-dimensional cesium indium halide quantum dots for temperature-stable down-conversion white light-emitting diodes with a half-lifetime of 186 h
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