Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping

© 2015 Elsevier B.V. All rights reserved. (Ba0.7Ca0.3)1-1.5xLaxTiO3 ceramics with x=0-0.03 were prepared using a solid state sintering method. All ceramics exhibit ferroelectric state at maximum temperatures, Tm, between 340 and 383 K. Upon increasing La3+ content, although the maximum temperature o...

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Main Authors: Jaiban,P., Suwanwong,S., Namsar,O., Watcharapasorn,A., Meevasana,W.
Format: Article
Published: Elsevier 2015
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http://cmuir.cmu.ac.th/handle/6653943832/38892
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spelling th-cmuir.6653943832-388922015-06-16T07:54:31Z Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping Jaiban,P. Suwanwong,S. Namsar,O. Watcharapasorn,A. Meevasana,W. Mechanical Engineering Materials Science (all) Mechanics of Materials Condensed Matter Physics © 2015 Elsevier B.V. All rights reserved. (Ba0.7Ca0.3)1-1.5xLaxTiO3 ceramics with x=0-0.03 were prepared using a solid state sintering method. All ceramics exhibit ferroelectric state at maximum temperatures, Tm, between 340 and 383 K. Upon increasing La3+ content, although the maximum temperature of permittivity becomes lower (well correlated with the decrease of tetragonallity), the dielectric response is significantly higher near room temperature for the x=0.03 sample. Furthermore, the conductivity shows clear enhancement under ultra-violet (UV) irradiation. This enhancement becomes larger upon increasing La content, which correlates with the decrease in activation energy extracted from the temperature-dependent conductivity. The results here suggest that BCT properties may be largely tunable by La doping, which could be applied with much potential use with ferroelectric devices and in optoelectronics. 2015-06-16T07:54:31Z 2015-06-16T07:54:31Z 2015-05-15 Article 0167577X 2-s2.0-84923353496 10.1016/j.matlet.2015.01.114 http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84923353496&origin=inward http://cmuir.cmu.ac.th/handle/6653943832/38892 Elsevier
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Mechanical Engineering
Materials Science (all)
Mechanics of Materials
Condensed Matter Physics
spellingShingle Mechanical Engineering
Materials Science (all)
Mechanics of Materials
Condensed Matter Physics
Jaiban,P.
Suwanwong,S.
Namsar,O.
Watcharapasorn,A.
Meevasana,W.
Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping
description © 2015 Elsevier B.V. All rights reserved. (Ba0.7Ca0.3)1-1.5xLaxTiO3 ceramics with x=0-0.03 were prepared using a solid state sintering method. All ceramics exhibit ferroelectric state at maximum temperatures, Tm, between 340 and 383 K. Upon increasing La3+ content, although the maximum temperature of permittivity becomes lower (well correlated with the decrease of tetragonallity), the dielectric response is significantly higher near room temperature for the x=0.03 sample. Furthermore, the conductivity shows clear enhancement under ultra-violet (UV) irradiation. This enhancement becomes larger upon increasing La content, which correlates with the decrease in activation energy extracted from the temperature-dependent conductivity. The results here suggest that BCT properties may be largely tunable by La doping, which could be applied with much potential use with ferroelectric devices and in optoelectronics.
format Article
author Jaiban,P.
Suwanwong,S.
Namsar,O.
Watcharapasorn,A.
Meevasana,W.
author_facet Jaiban,P.
Suwanwong,S.
Namsar,O.
Watcharapasorn,A.
Meevasana,W.
author_sort Jaiban,P.
title Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping
title_short Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping
title_full Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping
title_fullStr Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping
title_full_unstemmed Simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric Ba0.7Ca0.3TiO3 via la doping
title_sort simultaneous tuning of the dielectric property and photo-induced conductivity in ferroelectric ba0.7ca0.3tio3 via la doping
publisher Elsevier
publishDate 2015
url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84923353496&origin=inward
http://cmuir.cmu.ac.th/handle/6653943832/38892
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