Luminescence properties of SrB4O7:Sm2+ for light conversion agent

被引：21

作者：

Sun Jiayue ^{[1
]}

Zhu Jicheng ^{[1
]}

Liu Xiaotang ^{[2
]}

Du Haiyan ^{[1
]}

机构：

[1] Beijing Technol & Business Univ, Sch Sci, Beijing 100048, Peoples R China

[2] S China Agr Univ, Coll Sci, Guangzhou 510642, Guangdong, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2012年 / 30卷 / 11期

关键词：

Sm2+; photoluminescence; light conversion agent; rare earths; ENERGY-TRANSFER;

D O I：

10.1016/S1002-0721(12)60183-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A deep red-emitting SrB4O7:Sm2+ phosphor for light conversion agent was synthesized by the conventional solid-state reaction. X-ray powder diffraction (XRD) analysis confirmed the phase formation of SrB4O7:Sm2+ materials. Results of luminescence properties showed that the phosphor could be efficiently excited by the UV-vis light region from 250-500 nm, and it exhibited deep red (685 nm) emission corresponding to D-5(0) -> F-7(0) transition of Sm2+. The critical quenching concentration of Sm2+ in SrB4O7:Sm2+ phosphor was about 0.05, and the corresponding concentration quenching mechanism was verified to be the dipole-dipole interaction according to the Dexter's theory. The decay times had few alterations with different concentrations in SrB4O7:xSm(2+) phosphor.

引用

页码：1084 / 1087

页数：4

共 18 条

[1]

BLASSE G, 1969, PHILIPS RES REP, V24, P131

[2] A THEORY OF SENSITIZED LUMINESCENCE IN SOLIDS [J].

DEXTER, DL .

JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (05) :836-850

[3]

Dieke G.H., 1968, Spectra and energy levels OF rare earth IONS IN crystals

[4]

Govindjee BeattyJT., 2005, Discoveries in Photosynthesis

[5]

Lian S., 2000, CHINA PLASTICS, V14, P1

[6]

Nogami M, 2002, ADV MATER, V14, P923, DOI 10.1002/1521-4095(20020618)14:12<923::AID-ADMA923>3.0.CO

[7]

2-D

[8] A novel blue-emitting long-lasting proyphosphate phosphor Sr2P2O7:Eu2+, Y3+ [J].

Pang, Ran ;

Li, Chengyu ;

Shi, Lili ;

Su, Qiang .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2009, 70 (02) :303-306

[9]

Park S, 2002, J KOREAN PHYS SOC, V41, pL583

[10] THE VALENCE CHANGE FROM RE3+ TO RE2+ (RE-EQUIVALENT-TO-EU, SM, YB) IN SRB4O7-RE PREPARED IN AIR AND THE SPECTRAL PROPERTIES OF RE2+ [J].

PEI, ZW ;

SU, Q ;

ZHANG, JY .

JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 198 (1-2) :51-53

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