White LED featuring remote phosphor with poly(vinylidene fluoride-co-hexafluoropropylene)

被引：5

作者：

Huang, Kuan-Chieh ^{[1
]}

Lu, Wen-Jie ^{[1
]}

Liao, Kuan-Yung ^{[1
]}

Tsai, Tai-Cheng ^{[1
]}

Lai, Teng-Hsien ^{[1
]}

Sheu, Gwo-Jiun ^{[1
]}

Li, Yun-Li ^{[1
]}

机构：

[1] Genesis Photon Inc, R&D Ctr, Tainan 74144, Taiwan

来源：

MATERIALS LETTERS | 2014年 / 122卷

关键词：

Composite materials; Polymers; Poly(vinylidene fluoride-co-hexafluoropropylene; Remote phosphor; White light-emitting diode; LIGHT; LAYER;

D O I：

10.1016/j.matlet.2014.02.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A flexible remote phosphor (RP) sheet based on thermally stable polymer, poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), is prepared for a warm white light-emitting diode (WLED) by adopting a simple route. The highly thermal stability of the PVDF-HFP is confirmed by means of thermogravimetric analysis. The luminous efficacy (65.7 +/- 2.9 lm/W) and the chromaticity coordinates (0.4578, 0.4107) of the WLED applying PVDF-HFP-based RP sheet remain steady under continuity of current injection of 350 mA for a long-term duration of 1000 h. A better uniformity in correlated color temperature (CCT) of such WLED is obtained, with reference to the CCT uniformity of a WLED made of sapphire-based RP. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：265 / 268

页数：4

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