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Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte

Chitosan-NH4I and chitosan-NH4I-EC films have been prepared by solution cast technique. The sample containing 45 wt% ammonium iodide (NH4I) exhibited the highest room temperature conductivity of 3.7.10(-7) S cm(-1). The conductivity of the sample increased to 7.6 x 10(-6) S cm(-1) when 40wt% ethylen...

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Main Authors: Majid, Siti Rohana, Arof, Abdul Kariem, Buraidah, M.H., Teo, L.P.
Format: Article
Published: Elsevier 2009
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/7634/
https://doi.org/10.1016/j.physb.2008.12.027
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spelling my.um.eprints.76342019-08-27T01:23:41Z http://eprints.um.edu.my/7634/ Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte Majid, Siti Rohana Arof, Abdul Kariem Buraidah, M.H. Teo, L.P. QC Physics Chitosan-NH4I and chitosan-NH4I-EC films have been prepared by solution cast technique. The sample containing 45 wt% ammonium iodide (NH4I) exhibited the highest room temperature conductivity of 3.7.10(-7) S cm(-1). The conductivity of the sample increased to 7.6 x 10(-6) S cm(-1) when 40wt% ethylene carbonate (EC) was added to the 55 wt% chitosan-45 wt% NH4I sample. The conductivity-temperature relationship is Arrhenian. From dielectric loss variation with frequency, the power law exponent was obtained. The temperature dependence of the power law exponent for chitosan-NH4I system follows the correlated barrier hopping (CBH) model while conduction mechanism of the plasticized system can be represented by the small polaron hopping (SPH) model. (C) 2009 Elsevier B.V. All rights reserved. Elsevier 2009 Article PeerReviewed Majid, Siti Rohana and Arof, Abdul Kariem and Buraidah, M.H. and Teo, L.P. (2009) Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte. Physica B: Condensed Matter, 404 (8-11). pp. 1373-1379. ISSN 0921-4526 https://doi.org/10.1016/j.physb.2008.12.027 doi:10.1016/j.physb.2008.12.027
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
spellingShingle QC Physics
Majid, Siti Rohana
Arof, Abdul Kariem
Buraidah, M.H.
Teo, L.P.
Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
description Chitosan-NH4I and chitosan-NH4I-EC films have been prepared by solution cast technique. The sample containing 45 wt% ammonium iodide (NH4I) exhibited the highest room temperature conductivity of 3.7.10(-7) S cm(-1). The conductivity of the sample increased to 7.6 x 10(-6) S cm(-1) when 40wt% ethylene carbonate (EC) was added to the 55 wt% chitosan-45 wt% NH4I sample. The conductivity-temperature relationship is Arrhenian. From dielectric loss variation with frequency, the power law exponent was obtained. The temperature dependence of the power law exponent for chitosan-NH4I system follows the correlated barrier hopping (CBH) model while conduction mechanism of the plasticized system can be represented by the small polaron hopping (SPH) model. (C) 2009 Elsevier B.V. All rights reserved.
format Article
author Majid, Siti Rohana
Arof, Abdul Kariem
Buraidah, M.H.
Teo, L.P.
author_facet Majid, Siti Rohana
Arof, Abdul Kariem
Buraidah, M.H.
Teo, L.P.
author_sort Majid, Siti Rohana
title Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
title_short Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
title_full Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
title_fullStr Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
title_full_unstemmed Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
title_sort ionic conductivity by correlated barrier hopping in nh4i doped chitosan solid electrolyte
publisher Elsevier
publishDate 2009
url http://eprints.um.edu.my/7634/
https://doi.org/10.1016/j.physb.2008.12.027
_version_ 1643688087047372800
score 13.244404

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