Structural investigation and improvement of photoluminescence properties in Ba(ZrxTi1-x)O3 powders synthesized by the solid state reaction method

被引：17
作者：
Parida, S. [1 ]
Rout, S. K. [1 ]
Cavalcante, L. S. [2 ,3 ]
Simoes, A. Z. [2 ]
Barhai, P. K. [1 ]
Batista, N. C. [3 ]
Longo, E. [2 ]
Li, M. Siu [4 ]
Sharma, S. K. [5 ]
机构：
[1] BIT Mesra, Dept Appl Phys, Electroceram Lab, Ranchi 835215, Jharkhand, India
[2] Univ Estadual, BR-14801907 Araraquara Guaratingueta, SP, Brazil
[3] Univ Estadual Piaui, Dept Quim, CCN, BR-64002150 Teresina, PI, Brazil
[4] Univ Sao Paulo, IFSC, BR-13560970 Sao Carlos, SP, Brazil
[5] ISM, Dept Phys, Dhandad, Jharkhand, India
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2013年 / 142卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
Oxides; Defects; Crystal structure; Optical properties; FERROELECTRIC PHASE-TRANSITION; MULTILAYER CERAMIC CAPACITORS; BARIUM-TITANATE; DIELECTRIC-PROPERTIES; RARE-EARTH; NEUTRON-DIFFRACTION; RAMAN-SCATTERING; BAZRO3; BEHAVIOR; MICROSTRUCTURE;
D O I：
10.1016/j.matchemphys.2013.06.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, Ba(ZrxTi1-x)O-3 powders with different (x) compositions were synthesized by the solid state reaction method and their structure and improvement of photoluminescence (PL) properties with the Ti substitution by Zr were discussed. The structural investigation of these powders was performed by means of X-ray diffraction (XRD) and Fourier transform Raman (FT-Raman) spectroscopy. Their optical properties were monitored by ultraviolet-visible (UV-vis) absorption spectroscopy and PL measurements. XRD patterns indicated that the powders with x = 0 and 0.1 have a tetragonal structure while compositions with x >= 0.2 exhibit cubic structure. FT-Raman spectra revealed that the replacement of Ti by Zr significantly reduced the intensity of the Raman active modes. This behavior is related to the increase of undistorted [ZrO6] clusters in the global matrix at short range and decrease in local concentration of distorted octahedral [TiO6] clusters. UV- vis absorption spectra shown the presence of intermediary energy levels between the valence band (VB) and the conduction band (BC). These intermediary electronic levels are mainly related to 2p orbitals of O atoms, 4d orbitals of Zr atoms and 3d orbitals of Ti atoms between the VB and CB. A significant improvement in PL properties of Ba(ZrxTi1-x)O-3 powders was observed with an increase of undistorted [ZrO6] clusters in the lattice. Finally, we propose possible wideband models based on intermediary energy deep and shallow levels to explain the PL behavior at room temperature. (C) 2013 Elsevier B.V. All rights reserved.
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页码：70 / 76
页数：7
相关论文
共 62 条
[1]   Thermodynamic properties of BaCeO3 and BaZrO3 at low temperatures [J].
Ahrens, M ;
Maier, J .
THERMOCHIMICA ACTA, 2006, 443 (02) :189-196
[2]   Structural and relaxor behavior of Ba[ZrxTi1-x-y](Zn1/3Nb2/3)yO3 ceramics obtained by a solid-state reaction [J].
Aoujgal, A. ;
Ahamdane, H. ;
Graca, M. P. F. ;
Costa, L. C. ;
Tachafine, A. ;
Carru, J. C. ;
Outzourhit, A. .
SOLID STATE COMMUNICATIONS, 2010, 150 (27-28) :1245-1248
[3]   Optical and dielectric relaxor behaviour of Ba(Zr0.25Ti0.75)O3 ceramic explained by means of distorted clusters [J].
Badapanda, T. ;
Rout, S. K. ;
Cavalcante, L. S. ;
Sczancoski, J. C. ;
Panigrahi, S. ;
Longo, E. ;
Li, M. Siu .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (17)
[4]   On the formation mechanism of BaTiO3-BaZrO3 solid solution through solid-oxide reaction [J].
Bera, J ;
Rout, SK .
MATERIALS LETTERS, 2005, 59 (01) :135-138
[5]   Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders [J].
Cavalcante, L. S. ;
Longo, V. M. ;
Zampieri, M. ;
Espinosa, J. W. M. ;
Pizani, P. S. ;
Sambrano, J. R. ;
Varela, J. A. ;
Longo, E. ;
Simoes, M. L. ;
Paskocimas, C. A. .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (06)
[6]   Intense violet-blue photoluminescence in BaZrO3 powders:: A theoretical and experimental investigation of structural order-disorder [J].
Cavalcante, L. S. ;
Sczancoski, J. C. ;
Longo, V. M. ;
De Vicente, F. S. ;
Sambrano, J. R. ;
de Figueiredo, A. T. ;
Dalmaschio, C. J. ;
Li, M. Siu ;
Varela, J. A. ;
Longo, E. .
OPTICS COMMUNICATIONS, 2008, 281 (14) :3715-3720
[7]   Combined experimental and theoretical investigations of the photoluminescent behavior of Ba(Ti,Zr)O3 thin films [J].
Cavalcante, L. S. ;
Gurgel, M. F. C. ;
Paris, E. C. ;
Simoes, A. Z. ;
Joya, M. R. ;
Varela, J. A. ;
Pizani, P. S. ;
Longo, E. .
ACTA MATERIALIA, 2007, 55 (19) :6416-6426
[8]   Local electronic structure, optical bandgap and photoluminescence (PL) properties of Ba(Zr0.75Ti0.25) O3 powders [J].
Cavalcante, L. S. ;
Batista, N. C. ;
Badapanda, T. ;
Costa, M. G. S. ;
Li, M. S. ;
Avansi, W. ;
Mastelaro, V. R. ;
Longo, E. ;
Espinosa, J. W. M. ;
Gurgel, M. F. C. .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2013, 16 (03) :1035-1045
[9]   Microstructure, dielectric properties and optical band gap control on the photoluminescence behavior of Ba[Zr0.25Ti0.75]O3 thin films [J].
Cavalcante, L. S. ;
Sczancoski, J. C. ;
De Vicente, F. S. ;
Frabbro, M. T. ;
Li, M. Siu ;
Varela, J. A. ;
Longo, E. .
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2009, 49 (01) :35-46
[10]  
Cavalcante L.S., 2007, APPL PHYS LETT, V90
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