A novel red phosphor Ca12Al14O32Cl2:Eu3+ for near UV white light-emitting diodes

被引：6

作者：

Yang, Zhigang ^{[1
]}

Zhao, Zhengyan ^{[1
]}

Shi, Yurong ^{[1
]}

Wang, Yuhua ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Mat Sci, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 10期

基金：

美国国家科学基金会;

关键词：

Optical materials; Luminescence; Optical properties; EU3+;

D O I：

10.1016/j.materresbull.2013.06.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel red phosphor Ca12Al14O32Cl2:Eu3+ was synthesized using a solid-state reaction method, and its luminescence characteristics and charge compensators effect (Li+, Na+, K+) were investigated. The excitation spectra showed a obvious absorption in near-ultraviolet region. Under 392 nm excitation, the phosphors exhibited an intense red emission at 614 nm. The Commission Internationale de l'Eclairage (CIE) chromaticity coordinates and quantum efficiency (QE) were (0.65, 0.35) and 62.3%, respectively. The good color saturation, high quantum efficiency and small thermal-quenching properties indicate that Ca12Al14O32Cl2:Eu3+ could be potentially applied in near UV white light-emitting diodes. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：4048 / 4050

页数：3

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