Photoluminescence property of vanadates M2V2O7 (M: Ba, Sr and Ca)

被引：104

作者：

Nakajima, T. ^{[1
]}

Isobe, M. ^{[2
]}

Tsuchiya, T. ^{[1
]}

Ueda, Y. ^{[2
]}

Manabe, T. ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Adv Mfg Res Inst, Tsukuba, Ibaraki 3058565, Japan

[2] Univ Tokyo, Mat Design & Characterizat Lab, Inst Solid State Phys, Chiba 2778581, Japan

来源：

OPTICAL MATERIALS | 2010年 / 32卷 / 12期

关键词：

Vanadate; Ba2V2O7; Sr2V2O7; Ca2V2O7; Luminescence; Charge transfer transition; CRYSTAL-STRUCTURE; PHOSPHOR; EFFICIENCY; STATE;

D O I：

10.1016/j.optmat.2010.05.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the photoluminescent properties including the internal quantum efficiency (eta) for the M2V2O7 (M: Ba, Sr, and Ca) as a new vanadate phosphor system. In the M2V2O7, the broad band emission spectra from 400 to 800 nm derived from the charge transfer transition in the VO4 tetrahedra were observed. The emission band of these compounds consisted of two maxima Em(1) and Em(2) corresponding to T-3(1)-(1)A(1) and T-3(2)-(1)A(1) transitions, respectively. These two maxima red-shifted with the decreasing ionic radius of M-site, as a result, the luminescent colour was varied from green (M: Ba) to yellowish orange (M: Ca). The eta for the Ba2V2O7, Sr2V2O7 and Ca2V2O7 were 25%, 8% and 0.9%, respectively. This enhancement of eta in the M2V2O7 could be due to following structural features: the stronger V-V and weaker V-M correlations. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1618 / 1621

页数：4

共 19 条

[1] Synthesis, crystal structure and optical properties of BiMgVO5 [J].

Benmokhtar, S ;

El Jazouli, A ;

Chaminade, JP ;

Gravereau, P ;

Guillen, F ;

de Waal, D .

JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (11) :4175-4182

[2] White light generation under violet-blue excitation from tunable green-to-red emitting Ca2MgSi2O7:Eu,Mn through energy transfer [J].

Chang, Chun-Kuei ;

Chen, Teng-Ming .

APPLIED PHYSICS LETTERS, 2007, 90 (16)

[3] A novel orange phosphor of Eu2+-activated calcium chlorosilicate for white light-emitting diodes [J].

Ding, Weijia ;

Wang, Jing ;

Zhang, Mei ;

Zhang, Qiuhong ;

Su, Qiang .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (11) :3582-3585

[4] UBER DIE LUMINESZENZ DER ALKALIVANADATE [J].

GOBRECHT, H ;

HEINSOHN, G .

ZEITSCHRIFT FUR PHYSIK, 1957, 147 (03) :350-360

[5] CRYSTAL-CHEMISTRY OF M+VO3 (M+=LI, NA, K, NH4,TL, RB,AND CS)PYROXENES [J].

HAWTHORNE, FC ;

CALVO, C .

JOURNAL OF SOLID STATE CHEMISTRY, 1977, 22 (02) :157-170

[6] CRYSTAL-STRUCTURE OF BA2V2O7 [J].

HAWTHORNE, FC ;

CALVO, C .

JOURNAL OF SOLID STATE CHEMISTRY, 1978, 26 (04) :345-355

[7] CRYSTAL-STRUCTURE OF HIGH-TEMPERATURE STRONTIUM PYROVANADATE [J].

HUANG, JF ;

SLEIGHT, AW .

MATERIALS RESEARCH BULLETIN, 1992, 27 (05) :581-590

[8]

KELMER J, 1969, LUMINESCENT SCREENS, P1180

[9] Fluorescence properties of polycrystalline Tm3+-activated Y3Al5O12 and Tm3+-Li+ co-activated Y3Al5O12 in the visible and near IR ranges [J].

Lopez, OA ;

McKittrick, J ;

Shea, LE .

JOURNAL OF LUMINESCENCE, 1997, 71 (01) :1-11

[10] Direct fabrication of metavanadate phosphor films on organic substrates for white-light-emitting devices [J].

Nakajima, Tomohiko ;

Isobe, Masahiko ;

Tsuchiya, Tetsuo ;

Ueda, Yutaka ;

Kumagai, Toshiya .

NATURE MATERIALS, 2008, 7 (09) :735-740

← 1 2 →