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 [J].

Brito, HF ;

Malta, OL ;

de Carvalho, CAA ;

Menezes, JFS ;

Souza, LR ;

Ferraz, R .

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 [J].

Chambers, M. D. ;

Rousseve, P. A. ;

Clarke, D. R. .

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 [J].

Ferid, M ;

Horchani, K ;

Amami, J .

MATERIALS RESEARCH BULLETIN, 2004, 39 (12) :1949-1955

[9] EU+3 5D RESONANCE QUENCHING TO CHARGE-TRANSFER STATES IN Y2O2S,LA2O2S, AND LAOCL [J].

FONGER, WH ;

STRUCK, CW .

JOURNAL OF CHEMICAL PHYSICS, 1970, 52 (12) :6364-&

[10] CRYSTAL-STRUCTURE OF KYP2O7 [J].

HAMADY, A ;

ZID, MF ;

JOUINI, T .

JOURNAL OF SOLID STATE CHEMISTRY, 1994, 113 (01) :120-124

← 1 2 3 4 →