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

THE Coatings Pub Date : 2021-04-02 DOI:10.3390/COATINGS11040415

Chin-Chuan Huang, Kuo-Hsiung Chu, C. Sher, Chunliang Lin, Y. Su, Chia-Wei Sun, H. Kuo

引用次数: 3

Abstract

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 Zn0.8) 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.

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Zn0.8Cd0.2S白量子点液体型白光二极管的高稳定性

在这项研究中，我们展示了一种新的白光发光二极管(WLED)，具有高稳定性和发光效率，并且具有正老化性。采用化学方法制备了胶体三元Zn0.8 cd0.2 s(命名为Zn0.8)白量子点(WQDs)，并将其分散在二甲苯中，将其集成到紫外发光二极管(UV-LED)中，形成wqd -白光发光二极管(WQD-WLED)。具有中性白色相关色温(CCT)的WQD-WLED可以获得高效率、高色质和优异的可靠性。实验结果表明，WQD-WLED的相对发光效率和显色指数(CRI)的稳定性分别可达160和82%。此外，WQD-WLED可以在100 mA下工作1000小时以上，并且可以减少玻璃封装中的wqd数量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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THE Coatings

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