Synthesis and spectroscopic properties of CaTiO3 nanocrystals doped with Pr3+ ions

被引：55

作者：

Deren, P. J. ^{[1
]}

Pazik, R. ^{[1
]}

Strek, W. ^{[1
]}

Boutinaud, Ph. ^{[2
,3
]}

Mahiou, R. ^{[2
,3
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw 2, Poland

[2] Univ Clermont Ferrand, LMI, CNRS, UMR 6002, F-63177 Clermont Ferrand, France

[3] ENSCCF, F-63177 Clermont Ferrand, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 451卷 / 1-2期

关键词：

sol-gel; perovskite; CaTiO3; phosphor; rare-earth ions;

D O I：

10.1016/j.jallcom.2007.04.197

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：

CaTiO3 nanocrystals doped with praseodymium were obtained by sol-gel method. The sizes of nanocrystals depend on the synthesis method and on annealing temperature; and change from 24 nm for samples annealed at 700 degrees C to 45 nm for samples annealed at 1100 degrees C. The more heavily doped nanocrystallite sample under laser pumping in the P-3(2) manifold exhibits at 77 K unusual blue emission from the P-3(0) level. The intensity of the blue emission increases with the Pr3+ concentration in the range 0.1-10%. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：595 / 599

页数：5

共 9 条

[1]

[Anonymous], KOLLOIDCHEMIE

[2] Simple way to test the validity of 2S+1LJ barycenters of rare earth ions (e.g. 4f2, 4f3 and 4f6 configurations) [J].

Antic-Fidancev, E .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 300 :2-10

[3] UV-to-red relaxation pathways in CaTiO3:Pr3+ [J].

Boutinaud, P ;

Pinel, E ;

Dubois, M ;

Vink, AP ;

Mahiou, R .

JOURNAL OF LUMINESCENCE, 2005, 111 (1-2) :69-80

[4]

CHADHA SS, 1994, SID 94 DIGEST, P51

[5] Improvement of the optical performances of Pr3+ in CaTiO3 [J].

Diallo, PT ;

Jeanlouis, K ;

Boutinaud, P ;

Mahiou, R ;

Cousseins, JC .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 323 :218-222

[6] UV excitation and trapping centers in CaTiO3:Pr3 [J].

Jia, W ;

Jia, D ;

Rodriguez, T ;

Evans, DR ;

Meltzer, RS ;

Yen, WM .

JOURNAL OF LUMINESCENCE, 2006, 119 :13-18

[7] Synthesis and red luminescence of Pr3+-doped CaTiO3 nanophosphor from polymer precursor [J].

Pan, YX ;

Su, Q ;

Xu, HF ;

Chen, TH ;

Ge, WK ;

Yang, CL ;

Wu, MM .

JOURNAL OF SOLID STATE CHEMISTRY, 2003, 174 (01) :69-73

[8] What makes the luminescence of Pr3+ different in CaTiO3 and CaZrO3? [J].

Pinel, E ;

Boutinaud, P ;

Mahiou, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 380 (1-2) :225-229

[9]

Scherrer P., 1918, GOTTINGER NACHRICHTE, V2, P98

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