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Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction

Objectives: We focus solely on a comprehensive conductivity analysis of Bi4Ti3O12 ceramic, in a bid to bring seminal ideas for dielectric components, in particular frequency and temperature ranges. Methods/Statistical Analysis: The synthesis of Bi4Ti3O12 ceramic is based on a mechanical activation m...

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Main Authors: Wong, Yickjeng, Hassan, Jumiah, Hashim , Mansor, Chen, Sookien, Ismail, Ismayadi
Format: Article
Language:English
Published: Indian Society for Education and Environment 2016
Online Access:http://psasir.upm.edu.my/id/eprint/55358/1/Conductivity%20analysis%20of%20Bi4Ti3O12%20ferroelectric%20ceramic.pdf
http://psasir.upm.edu.my/id/eprint/55358/
http://www.indjst.org/index.php/indjst/article/viewFile/83039/73959
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spelling my.upm.eprints.553582017-11-03T08:55:17Z http://psasir.upm.edu.my/id/eprint/55358/ Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction Wong, Yickjeng Hassan, Jumiah Hashim , Mansor Chen, Sookien Ismail, Ismayadi Objectives: We focus solely on a comprehensive conductivity analysis of Bi4Ti3O12 ceramic, in a bid to bring seminal ideas for dielectric components, in particular frequency and temperature ranges. Methods/Statistical Analysis: The synthesis of Bi4Ti3O12 ceramic is based on a mechanical activation method. The following sintering at 1273 K ascertains the Bi4Ti3O12 appears to be of single phase crystallizes in orthorhombic form, whose conductivity is determined from the dielectric function in the context of Kramers-Kronig relation on which of this is measured in the frequency domain at varying temperatures. The evaluation of conductivity data is mainly in terms of activation energy. Findings: We find that the separately discussed dc and ac conductivities in similar manner are best isolated into two distinct temperature regions. Charge transport by hopping to the target localized states is the relevant conduction mechanism in bringing insights into the dynamic responses. Variable range and small polaron hopping models associated with the adiabatic small polaron are the decent choices, each of which explaining the dc conductions in these temperature regions. The former involves distant hops, whereas the latter denotes as nearest-neighbour hopping. The percolation treatments applied in the dc conductivity yield promising results if different percolation expressions are used. The correlation between dc and ac conductions for each temperature is irrefutably made through the Barton-Nakajima-Namikawa fitting. In frequency dependence ac regions, the thermally activated hopping carriers are transported in a correlated to a random manner between preferred sites. Performing a Summerfield ac scaling in these temperature regions leads to different scenarios in view of time-temperature superposition principle. Applications/Improvements: Further experiments are encouraged to support the hopping conduction mechanisms from another aspect in order to prompt the use as energy storage function in the electromagnetic application. Indian Society for Education and Environment 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55358/1/Conductivity%20analysis%20of%20Bi4Ti3O12%20ferroelectric%20ceramic.pdf Wong, Yickjeng and Hassan, Jumiah and Hashim , Mansor and Chen, Sookien and Ismail, Ismayadi (2016) Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction. Indian Journal of Science and Technology, 9 (37). pp. 1-22. ISSN 0974-6846; ESSN: 0974-5645 http://www.indjst.org/index.php/indjst/article/viewFile/83039/73959 10.17485/ijst/2016/v9i37/83039
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Objectives: We focus solely on a comprehensive conductivity analysis of Bi4Ti3O12 ceramic, in a bid to bring seminal ideas for dielectric components, in particular frequency and temperature ranges. Methods/Statistical Analysis: The synthesis of Bi4Ti3O12 ceramic is based on a mechanical activation method. The following sintering at 1273 K ascertains the Bi4Ti3O12 appears to be of single phase crystallizes in orthorhombic form, whose conductivity is determined from the dielectric function in the context of Kramers-Kronig relation on which of this is measured in the frequency domain at varying temperatures. The evaluation of conductivity data is mainly in terms of activation energy. Findings: We find that the separately discussed dc and ac conductivities in similar manner are best isolated into two distinct temperature regions. Charge transport by hopping to the target localized states is the relevant conduction mechanism in bringing insights into the dynamic responses. Variable range and small polaron hopping models associated with the adiabatic small polaron are the decent choices, each of which explaining the dc conductions in these temperature regions. The former involves distant hops, whereas the latter denotes as nearest-neighbour hopping. The percolation treatments applied in the dc conductivity yield promising results if different percolation expressions are used. The correlation between dc and ac conductions for each temperature is irrefutably made through the Barton-Nakajima-Namikawa fitting. In frequency dependence ac regions, the thermally activated hopping carriers are transported in a correlated to a random manner between preferred sites. Performing a Summerfield ac scaling in these temperature regions leads to different scenarios in view of time-temperature superposition principle. Applications/Improvements: Further experiments are encouraged to support the hopping conduction mechanisms from another aspect in order to prompt the use as energy storage function in the electromagnetic application.
format Article
author Wong, Yickjeng
Hassan, Jumiah
Hashim , Mansor
Chen, Sookien
Ismail, Ismayadi
spellingShingle Wong, Yickjeng
Hassan, Jumiah
Hashim , Mansor
Chen, Sookien
Ismail, Ismayadi
Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
author_facet Wong, Yickjeng
Hassan, Jumiah
Hashim , Mansor
Chen, Sookien
Ismail, Ismayadi
author_sort Wong, Yickjeng
title Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
title_short Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
title_full Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
title_fullStr Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
title_full_unstemmed Conductivity analysis of Bi4Ti3O12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
title_sort conductivity analysis of bi4ti3o12 ferroelectric ceramic: a comprehensive study from the dynamic aspects of hopping conduction
publisher Indian Society for Education and Environment
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/55358/1/Conductivity%20analysis%20of%20Bi4Ti3O12%20ferroelectric%20ceramic.pdf
http://psasir.upm.edu.my/id/eprint/55358/
http://www.indjst.org/index.php/indjst/article/viewFile/83039/73959
_version_ 1643835871085985792
score 13.211869

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