Low temperature microwave solid-state synthesis of CaCO3: Eu3+, K+ phosphors

被引：15

作者：

Cheng, Qijun ^{[1
]}

Kang, Ming ^{[1
]}

Wang, Jie ^{[1
]}

Zhang, Ping ^{[1
]}

Sun, Rong ^{[1
]}

Song, LiXian ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, State Key Lab Cultivat Base Nonmetal Composites &, Mianyang 621010, Peoples R China

来源：

ADVANCED POWDER TECHNOLOGY | 2015年 / 26卷 / 03期

关键词：

Microwave; Phosphor; Charge compensation; Photoluminescence; RED PHOSPHOR; LUMINESCENCE; PHOTOLUMINESCENCE; NA+;

D O I：

10.1016/j.apt.2015.02.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An Eu3+ singly doped material and a K+-Eu3+ co-doped calcium carbonate phosphor were synthesized successfully by microwave assisted sintering at low temperature. The sintering condition was set at 270 degrees C for 3 h in air. The structure and micro-morphology of samples were characterized and analyzed by X-ray powder diffraction (XRD) and scanning electronic microscope (SEM). Results showed that Eu3+ and K+ ions were uniformly introduced into the host lattice of CaCO3, taking place of Ca2+ ions. The photoluminescence (PL) properties were characterized by PL, PL excitation spectroscopy. The maximum photoluminescence intensity was obtained when the molar concentration of Eu3+ was 0.08. Under the excitation of 394 nm, the transitions of D-5(0) -> F-7(J) (J = 0-5) for Eu3+ were observed, and the luminescent intensities of Eu3+-K+ co-doped CaCO3 phosphors could be greatly increased. (C) 2015 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：848 / 852

页数：5

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