High Stability of Liquid-Typed White Light-Emitting Diode with Zn0.8Cd0.2S White Quantum Dots

被引：3

作者：

Huang, Chin-Chuan ^{[1
]}

Chu, Kuo-Hsiung ^{[2
,3
,4
]}

Sher, Chin-Wei ^{[5
]}

Lin, Chun-Liang ^{[6
,7
]}

Su, Yan-Kuin ^{[6
,7
]}

Sun, Chia-Wei ^{[2
,3
,4
]}

Kuo, Hao-Chung ^{[2
,3
,4
]}

机构：

[1] Natl Cheng Kung Univ, Inst Microelect, Dept Elect Engn, Tainan 701401, Taiwan

[2] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan

[3] Natl Chiao Tung Univ, Inst Electroopt Engn, Coll Elect & Comp Engn, Hsinchu 30010, Taiwan

[4] Natl Yang Ming Chiao Tung Univ, Hsinchu 30010, Taiwan

[5] Hong Kong Univ Sci & Technol, Fok Ying Tung Inst, Nansha 511458, Peoples R China

[6] Kun Shan Univ, Green Energy Technol Res Ctr, Tainan 71000, Taiwan

[7] Kun Shan Univ, Dept Elect Engn, Tainan 71000, Taiwan

来源：

COATINGS | 2021年 / 11卷 / 04期

关键词：

quantum dots; ultraviolet; CdSe; ZnS; luminous efficiency;

D O I：

10.3390/coatings11040415

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, we demonstrate a new design of white light-emitting diode (WLED) with high stability and luminous efficiency as well as positive aging. Colloidal ternary Zn0.8Cd0.2S (named Zn-0.8) white quantum dots (WQDs) were prepared by chemical route and dispersed in xylene, integrating them into an ultraviolet light-emitting diode (UV-LED) to form WQD-white light emitting diode (WQD-WLED). High efficiency, high color quality and excellent reliability of WQD-WLED with neutral white correlated color temperature (CCT) can be obtained. The experimental results indicate that the stability of relative luminous efficiency and color rendering index (CRI) of the WQD-WLED can reach up to 160 and 82%, respectively. Moreover, the WQD-WLED can operate more than 1000 h under 100 mA, and the quantity of WQDs in the glass package can be reduced.

引用

页数：9

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