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Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films

R. Venkatesh, C. Ravi Dhas, R. Sivakumar, T. Dhandayuthapani, P. Sudhagar, C. Sanjeeviraja, A. Moses Ezhil Raj, Sudhagar Pitchaimuthu Orcid Logo

Journal of Physics and Chemistry of Solids, Volume: 122, Pages: 118 - 129

Swansea University Author: Sudhagar Pitchaimuthu Orcid Logo

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DOI (Published version): 10.1016/j.jpcs.2018.06.015

Abstract

Nebulized spray pyrolysis method was employed to deposit pristine and manganese (Mn) -doped Co3O4 thin films for different Mn concentrations (4, 6 and 8 at.%). The structural properties revealed that the obtained films show predominant orientation along (311) plane and significant peak shift was obs...

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Published in: Journal of Physics and Chemistry of Solids
ISSN: 0022-3697
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa40778
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spelling 2018-09-17T15:04:59.2991879 v2 40778 2018-06-20 Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films 2fdbee02f4bfc5a1b174c8bd04afbd2b 0000-0001-9098-8806 Sudhagar Pitchaimuthu Sudhagar Pitchaimuthu true false 2018-06-20 EEN Nebulized spray pyrolysis method was employed to deposit pristine and manganese (Mn) -doped Co3O4 thin films for different Mn concentrations (4, 6 and 8 at.%). The structural properties revealed that the obtained films show predominant orientation along (311) plane and significant peak shift was observed upon an increase in Mn doping confirms the substitution of Mn in Co3O4 lattice. The pristine Co3O4 film shows clustered grains and dendrite patterns appearing with the increase in Mn content as evident from SEM studies. The optical dispersion parameters of the prepared films of pristine and Mn doped Co3O4 films were determined from UV transmission spectra. The phase purity and elemental analysis of the films revealed single phase with better stoichiometric films were obtained. The XPS core level spectra of 6 at.% Mn doped Co3O4 films exhibited the presence of two different oxidation states (Mn2+ and Mn3+). The electrical resistivity of the films decreased with increase in Mn dopant concentration was observed from linear four probe method. The Co3O4 film deposited using 6 at.% of Mn exhibited a maximum optical modulation of 35% and coloration efficiency of 29 cm2/C. Journal Article Journal of Physics and Chemistry of Solids 122 118 129 0022-3697 Oxides; Thin films; Microstructure; Electrochemical properties 31 12 2018 2018-12-31 10.1016/j.jpcs.2018.06.015 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2018-09-17T15:04:59.2991879 2018-06-20T15:38:04.7160806 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised R. Venkatesh 1 C. Ravi Dhas 2 R. Sivakumar 3 T. Dhandayuthapani 4 P. Sudhagar 5 C. Sanjeeviraja 6 A. Moses Ezhil Raj 7 Sudhagar Pitchaimuthu 0000-0001-9098-8806 8 0040778-17072018092152.pdf venkatesh2018.pdf 2018-07-17T09:21:52.8700000 Output 2191657 application/pdf Accepted Manuscript true 2019-06-19T00:00:00.0000000 true eng
title Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
spellingShingle Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
Sudhagar Pitchaimuthu
title_short Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
title_full Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
title_fullStr Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
title_full_unstemmed Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
title_sort Analysis of optical dispersion parameters and electrochromic properties of manganese-doped Co 3 O 4 dendrite structured thin films
author_id_str_mv 2fdbee02f4bfc5a1b174c8bd04afbd2b
author_id_fullname_str_mv 2fdbee02f4bfc5a1b174c8bd04afbd2b_***_Sudhagar Pitchaimuthu
author Sudhagar Pitchaimuthu
author2 R. Venkatesh
C. Ravi Dhas
R. Sivakumar
T. Dhandayuthapani
P. Sudhagar
C. Sanjeeviraja
A. Moses Ezhil Raj
Sudhagar Pitchaimuthu
format Journal article
container_title Journal of Physics and Chemistry of Solids
container_volume 122
container_start_page 118
publishDate 2018
institution Swansea University
issn 0022-3697
doi_str_mv 10.1016/j.jpcs.2018.06.015
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Nebulized spray pyrolysis method was employed to deposit pristine and manganese (Mn) -doped Co3O4 thin films for different Mn concentrations (4, 6 and 8 at.%). The structural properties revealed that the obtained films show predominant orientation along (311) plane and significant peak shift was observed upon an increase in Mn doping confirms the substitution of Mn in Co3O4 lattice. The pristine Co3O4 film shows clustered grains and dendrite patterns appearing with the increase in Mn content as evident from SEM studies. The optical dispersion parameters of the prepared films of pristine and Mn doped Co3O4 films were determined from UV transmission spectra. The phase purity and elemental analysis of the films revealed single phase with better stoichiometric films were obtained. The XPS core level spectra of 6 at.% Mn doped Co3O4 films exhibited the presence of two different oxidation states (Mn2+ and Mn3+). The electrical resistivity of the films decreased with increase in Mn dopant concentration was observed from linear four probe method. The Co3O4 film deposited using 6 at.% of Mn exhibited a maximum optical modulation of 35% and coloration efficiency of 29 cm2/C.
published_date 2018-12-31T03:51:55Z
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score 11.036706

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