Divalent europium-activated alkaline-earth-metal chlorophosphate luminophores [M(5)(PO4)(3)Cl:Eu2+; M=Ca,Sr,Ba] by self-propagating high-temperature synthesis

被引：24

作者：

Kottaisamy, M ^{[1
]}

Rao, MM ^{[1
]}

Jeyakumar, D ^{[1
]}

机构：

[1] CENT ELECTROCHEM RES INST,KARAIKKUDI 630006,TAMIL NADU,INDIA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1997年 / 7卷 / 02期

关键词：

D O I：

10.1039/a603885i

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Divalent europium-activated alkaline-earth-metal chlorophosphate luminophores (MCAP:Eu2+; M=Ca, Sr, Ba) have been prepared by self-propagating high-temperature (SPHT) synthesis in one pot employing the corresponding nitrates/chlorides, urea and diammonium hydrogen phosphate. The synthesized materials have been characterized by X-ray diffraction, photoluminescent emission spectroscopy, thermogravimetry, scanning electron microscopy and particle size analysis. The formation of chloroapatite depends on the nature of acid used in the combustion mixture. The photoluminescent emission efficiency and particle size distribution are found to depend on the amount of metal chloride used and on the sintering temperature. The results obtained are discussed with respect to the processing method employed.

引用

页码：345 / 349

页数：5

共 18 条

[1]

ARULDHAS N, 1993, J ALLOY COMPD, V202, P137

[2] PHOTOLUMINESCENT EFFICIENCY OF PHOSPHORS WITH ELECTRONIC TRANSITIONS IN LOCALIZED CENTERS [J].

BLASSE, G ;

BRIL, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1968, 115 (10) :1067-&

[3] OSCILLATOR-STRENGTHS AND LASER EFFECT IN NA2ND2PB6(PO4)6CL2 (CHLOROAPATITE), A NEW HIGH-ND-CONCENTRATION LASER MATERIAL [J].

BUDIN, JP ;

MICHEL, JC ;

AUZEL, F .

JOURNAL OF APPLIED PHYSICS, 1979, 50 (02) :641-646

[4]

Butler K. H., 1986, FLUORESCENT LAMP PHO

[5] COMBUSTION SYNTHESIS OF YTTRIA [J].

EKAMBARAM, S ;

PATIL, KC .

JOURNAL OF MATERIALS CHEMISTRY, 1995, 5 (06) :905-908

[6]

HOEKSTRA AH, 1970, J INORG NUCL CHE, P32

[7] A NEW APPROACH TO THERMOCHEMICAL CALCULATIONS OF CONDENSED FUEL-OXIDIZER MIXTURES [J].

JAIN, SR ;

ADIGA, KC ;

VERNEKER, VRP .

COMBUSTION AND FLAME, 1981, 40 (01) :71-79

[8]

KANIYA K, 1990, MATER RES B, V25, P63

[9] Yttrium oxide:Eu3+ red phosphor by self-propagating high temperature: Synthesis [J].

Kottaisamy, M ;

Jeyakumar, D ;

Jagannathan, R ;

Rao, MM .

MATERIALS RESEARCH BULLETIN, 1996, 31 (08) :1013-1020

[10] EU2+ LUMINESCENCE IN M(5)(PO4)(3)X APATITES, WHERE M IS CA2+, SR2+ AND BA2+, AND X IS F-, CL-, BR- AND OH- [J].

KOTTAISAMY, M ;

JAGANNATHAN, R ;

JEYAGOPAL, P ;

RAO, RP ;

NARAYANAN, RL .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1994, 27 (10) :2210-2215

← 1 2 →