One step urea assisted synthesis of polycrystalline Eu3+ doped KYP2O7 - luminescence and emission thermal quenching properties

被引：29

作者：

Pazik, Robert ^{[1
]}

Watras, Adam ^{[1
]}

Macalik, Lucyna ^{[1
]}

Deren, Przemyslaw J. ^{[1
]}

机构：

[1] PAS, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

NEW JOURNAL OF CHEMISTRY | 2014年 / 38卷 / 03期

关键词：

RARE-EARTH DIPHOSPHATES; VIBRATIONAL-SPECTRA; CS; RB; EUROPIUM(III); DEPENDENCE; STATES; VUV; NA; RE;

D O I：

10.1039/c3nj01168b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

KYP2O7 powders doped with Eu3+ were obtained for the first time by a one-step urea-assisted combustion method. Detailed structural properties were characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and X-ray fluorescence (EDX). Spectroscopic properties like excitation, emission and luminescence kinetics were investigated in the temperature range of 30-550 degrees C. The KYP2O7 doped with Eu3+ phosphor has a broad and intense absorption band centered at 213 nm, an absolute quantum yield of up to 62% and a luminescence quenching temperature of T-0.5 = 400 degrees C. The thermal behavior analysis of the luminescence shows that non-radiative internal losses are the main mechanism responsible for quenching of the luminescence.

引用

页码：1129 / 1137

页数：9

共 31 条

[1] [Anonymous], 2007, IN CRYST STRUCT DAT
[2] [Anonymous], 2007, Scanning Electron Microscopy and X-ray Microanalysis
[3] Blasse G., 1994, LUMINESCENT MAT, P1, DOI [10.1007/978-3-642-79017-1_1, DOI 10.1007/978-3-642-79017-1_1, 10.1007/978-3-642-79017-11, DOI 10.1007/978-3-642-79017-11]
[4] Luminescence behavior of Eu3+ with thenoyltrifluoroacetonate, sulfoxides and macrocyclics
Brito, HF
Malta, OL
de Carvalho, CAA
Menezes, JFS
Souza, LR
Ferraz, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 275 : 254 - 257
[5] Bunzli J. C. G., 1979, LANTHANIDE PROBES LI
[6] Decay pathway and high-temperature luminescence of Eu3+ in Ca2Gd8Si6O26
Chambers, M. D.
Rousseve, P. A.
Clarke, D. R.
[J]. JOURNAL OF LUMINESCENCE, 2009, 129 (03) : 263 - 269
[7] Delhez R., 1993, The Rietveld Method, P132, DOI [10.1002/crat.2170300412, DOI 10.1002/CRAT.2170300412]
[8] Preparation, structure and infrared spectrum of NaEuP2O7
Ferid, M
Horchani, K
Amami, J
[J]. MATERIALS RESEARCH BULLETIN, 2004, 39 (12) : 1949 - 1955
[9] EU+3 5D RESONANCE QUENCHING TO CHARGE-TRANSFER STATES IN Y2O2S,LA2O2S, AND LAOCL
FONGER, WH
STRUCK, CW
[J]. JOURNAL OF CHEMICAL PHYSICS, 1970, 52 (12) : 6364 - &
[10] CRYSTAL-STRUCTURE OF KYP2O7
HAMADY, A
ZID, MF
JOUINI, T
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1994, 113 (01) : 120 - 124

← 1 2 3 4 →