The effect of calcium concentration on the photoluminescence of CaTiO3: Pr3+ films prepared by the sol-gel method

被引：8

作者：

Yuan, Xiaofang ^{[1
,2
]}

Shen, Mingrong ^{[1
,2
]}

Fang, Liang ^{[1
,2
]}

Zheng, Fengang ^{[1
,2
]}

Wu, Xinglong ^{[3
,4
]}

Shen, Jiancang ^{[3
,4
]}

机构：

[1] Soochow Univ, Jiangsu Key Lab Thin Films, Suzhou 215006, Peoples R China

[2] Soochow Univ, Dept Phys, Suzhou 215006, Peoples R China

[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[4] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

来源：

OPTICAL MATERIALS | 2009年 / 31卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Sol-gel; Photoluminescence; CaTiO3; Pr3+; RED LUMINESCENCE; ENHANCEMENT; PHOSPHOR; IMPROVEMENT; AFTERGLOW; BEHAVIOR;

D O I：

10.1016/j.optmat.2009.01.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ca1-x+yPrxTiO3 (CPTO) films with x = 0.25 mol% and different y values were prepared by the sol-gel method. Both Ca excess and deficiency were found to be effective to improve the red emission brightness of the CPTO films, while they have small effect on the surface roughness and grain sizes of the films. The highest red emission at 612 nm for the case of Ca2+ deficiency happened on y = -x/2, and the one for the case of Ca2+ ions excess was on y = 3x. Charge compensation and substitution of Pr3+ for Ti4+ when Ca 21 ions was excessive in the CPTO films were proposed to explain the experimental results. These results indicate that the traditionally adopted Ca deficiencies may not be the best one for the efficient red emission of CPTO films, instead, a proper Ca excess is more effective. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1248 / 1251

页数：4

共 50 条

[21] Improvement of the optical performances of Pr3+ in CaTiO3
Diallo, PT
Jeanlouis, K
Boutinaud, P
Mahiou, R
Cousseins, JC
JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 323 : 218 - 222
[22] Synthesis and luminescent properties of SrTiO3:Pr3+ phosphors prepared by sol-gel method
Marchylo, O. M.
Zavjalova, L. V.
Nakanishi, Y.
Kominami, H.
Hara, K.
Belyaev, A. E.
Svechnikov, G. S.
Fenenko, L. I.
Poludin, V. I.
SEMICONDUCTOR PHYSICS QUANTUM ELECTRONICS & OPTOELECTRONICS, 2009, 12 (04) : 321 - 323
[23] Results on nanosized CaTiO3:Pr3+ phosphor
Gheorghies, C.
Boutinaud, P.
Loic, M.
Atanasiu, Valeriu O.
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2009, 11 (05): : 583 - 589
[24] Luminescence and afterglow in CaTiO3:Pr3+ films deposited by spray pyrolysis
Boutinaud, P.
Pinel, E.
Mahiou, R.
OPTICAL MATERIALS, 2008, 30 (07) : 1033 - 1038
[25] Testing sol-gel CaTiO3 coatings for biocompatible applications
Manso, M
Langlet, M
Martínez-Duart, JM
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2003, 23 (03): : 447 - 450
[26] Photoluminescence properties Pr3+ and Bi3+-codoped CaTiO3 phosphor prepared by a peroxide-based route
Tang Wanjun
Chen Donghua
MATERIALS RESEARCH BULLETIN, 2009, 44 (04) : 836 - 839
[27] Effect of Al3+ Additions on the Microstructure and Photoluminescence of SrTiO3:Pr3+ Phosphors Produced by the Sol-Gel Method
Marchylo, O. M.
Nakanishi, Y.
Kominami, H.
Hara, K.
Zavyalova, L. V.
Svechnikov, S. V.
Snopok, B. A.
THEORETICAL AND EXPERIMENTAL CHEMISTRY, 2013, 49 (03) : 158 - 164
[28] Effect of replacement of Ca by Zn on the structure and optical property of CaTiO3:Eu3+ red phosphor prepared by sol-gel method
Wang, Yulong
Zhang, Wentao
Zhang, Peicong
Li, Junfeng
Long, Jianping
LUMINESCENCE, 2015, 30 (05) : 533 - 537
[29] Improved photoluminescence and afterglow in CaTiO3:Pr3+ with addition of nanosized SiO2
Zhang, Xianmin
Cao, Chunyan
Zhang, Chenghua
Chen, Li
Zhang, Jiahua
Wang, Xiao-jun
PHYSICA B-CONDENSED MATTER, 2011, 406 (20) : 3891 - 3895
[30] Cathodoluminescence enhancement of CaTiO3:Pr3+ by Ga addition
Kang, SY
Byun, JW
Kim, JY
Suh, KS
Kang, SG
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2003, 24 (05) : 566 - 568

← 1 2 3 4 5 →