CaAlSiN3:Eu2+-based color-converting coating application for white LEDs: Reduction of blue-light harm and enhancement of CRI value

被引：18

作者：

Chen, Jingjing ^{[1
]}

Zhao, Yang ^{[2
]}

Mao, Zhiyong ^{[1
]}

Wang, Dajian ^{[1
]}

Bie, Lijian ^{[1
]}

机构：

[1] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin Key Lab Photoelect Mat & Devices, Tianjin 300384, Peoples R China

[2] China Acad Civil Aviat Sci & Technol, Beijing 100028, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2017年 / 90卷

基金：

中国国家自然科学基金;

关键词：

White LEDs; CaAlSiN3:Eu2+; Color-converting coating; Blue light harm; CRI value; RED-EMITTING PHOSPHORS; MELATONIN SUPPRESSION; DIODES; CAALSIN3-EU2+; LUMINESCENCE; HUMANS; HEALTH; IMPACT;

D O I：

10.1016/j.materresbull.2017.03.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, red color-converting coating on glass substrate is prepared by a simple spray painting method using CaAlSiN3:Eu2+ red emitting phosphor and silica sol matrix for application in reducing the blue-light harm and enhancing the CRI value of white LEDs. Phosphors distribution in the coating is investigated by field emission scanning electron microscope (FE-SEM) and fluorescence microscope. Luminescent properties, especially for the blue-light leakage and the CRI value of the red color converting coating coupled with a commercial white LED are demonstrated. The blue-light leakage decreases while the CRI value enhances when the prepared red color-converting coating was applied in commercial white LEDs. This study offers a facile route to reform the white LEDs for the purpose of reduction of blue-light harm and enhancement of CRI value. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：212 / 217

页数：6

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