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Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz

Three systems of gel polymer electrolytes have been prepared in this work. First system was PVA-DMSO-EC-PC-KI-I2 gel polymer electrolytes. In the first system, various amount of KI salt were added. The highest conductivity of gel polymer electrolyte for the first system was 12.50 mS cm-1 for the...

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Main Author: Mohd Fareezuan , Abdul Aziz
Format: Thesis
Published: 2017
Subjects:
Q Science (General)
QC Physics
Online Access:http://studentsrepo.um.edu.my/8284/1/All.pdf
http://studentsrepo.um.edu.my/8284/6/fareezuan.pdf
http://studentsrepo.um.edu.my/8284/
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spelling my.um.stud.82842020-06-16T00:30:55Z Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz Mohd Fareezuan , Abdul Aziz Q Science (General) QC Physics Three systems of gel polymer electrolytes have been prepared in this work. First system was PVA-DMSO-EC-PC-KI-I2 gel polymer electrolytes. In the first system, various amount of KI salt were added. The highest conductivity of gel polymer electrolyte for the first system was 12.50 mS cm-1 for the gel polymer electrolyte with the composition of 5.58 wt. % of PVA - 8.37 wt. % of EC - 11.16 wt. % of PC - 61.37 wt. % of DMSO - 11.72 wt. % of KI - 1.80 wt. % of I2. To this composition, part of KI was replaced with the quaternary ammonium iodide salt which is TMAI, TPAI and TBAI for the second system. The conductivity of the gel polymer electrolyte decreased with the increasing amount of quaternary ammonium iodide salts. The best electrolyte in systems 2 which gave the highest efficiency of 5.51 % and 5.80 %, respectively have been chosen for incorporation with diethyl carbonate (DEC) plasticizer (systems 3). With the addition of DEC plasticizer, the conductivity of the gel polymer electrolyte and efficiency of DSSC were enhanced. The highest efficiency of 7.5 % was obtained for the DSSC having 5.47 wt. % of PVA - 8.21 wt. % of EC - 10.95 wt. % of PC - 60.22 wt. % of DMSO - 3.45 wt. % of KI - 8.05 wt. % of TBAI - 1.08 wt. % of I2 - 2.57 wt. % of DEC. The interaction of gel polymer electrolytes have been studied via fourier transform infrared (FTIR) spectroscopy. The peak shifting observed for S=O, O-H, C-O-C and C=O bands indicates that the interaction has occurred. X-ray diffraction (XRD) pattern reveals that all gel polymer electrolytes are amorphous. 2017-10 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/8284/1/All.pdf application/pdf http://studentsrepo.um.edu.my/8284/6/fareezuan.pdf Mohd Fareezuan , Abdul Aziz (2017) Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz. PhD thesis, University of Malaya. http://studentsrepo.um.edu.my/8284/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic Q Science (General)
QC Physics
spellingShingle Q Science (General)
QC Physics
Mohd Fareezuan , Abdul Aziz
Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz
description Three systems of gel polymer electrolytes have been prepared in this work. First system was PVA-DMSO-EC-PC-KI-I2 gel polymer electrolytes. In the first system, various amount of KI salt were added. The highest conductivity of gel polymer electrolyte for the first system was 12.50 mS cm-1 for the gel polymer electrolyte with the composition of 5.58 wt. % of PVA - 8.37 wt. % of EC - 11.16 wt. % of PC - 61.37 wt. % of DMSO - 11.72 wt. % of KI - 1.80 wt. % of I2. To this composition, part of KI was replaced with the quaternary ammonium iodide salt which is TMAI, TPAI and TBAI for the second system. The conductivity of the gel polymer electrolyte decreased with the increasing amount of quaternary ammonium iodide salts. The best electrolyte in systems 2 which gave the highest efficiency of 5.51 % and 5.80 %, respectively have been chosen for incorporation with diethyl carbonate (DEC) plasticizer (systems 3). With the addition of DEC plasticizer, the conductivity of the gel polymer electrolyte and efficiency of DSSC were enhanced. The highest efficiency of 7.5 % was obtained for the DSSC having 5.47 wt. % of PVA - 8.21 wt. % of EC - 10.95 wt. % of PC - 60.22 wt. % of DMSO - 3.45 wt. % of KI - 8.05 wt. % of TBAI - 1.08 wt. % of I2 - 2.57 wt. % of DEC. The interaction of gel polymer electrolytes have been studied via fourier transform infrared (FTIR) spectroscopy. The peak shifting observed for S=O, O-H, C-O-C and C=O bands indicates that the interaction has occurred. X-ray diffraction (XRD) pattern reveals that all gel polymer electrolytes are amorphous.
format Thesis
author Mohd Fareezuan , Abdul Aziz
author_facet Mohd Fareezuan , Abdul Aziz
author_sort Mohd Fareezuan , Abdul Aziz
title Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz
title_short Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz
title_full Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz
title_fullStr Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz
title_full_unstemmed Polyvinyl alcohol (PVA) based gel electrolytes: Characterisation and applications in Dye-sensitized solar cells / Mohd Fareezuan Abdul Aziz
title_sort polyvinyl alcohol (pva) based gel electrolytes: characterisation and applications in dye-sensitized solar cells / mohd fareezuan abdul aziz
publishDate 2017
url http://studentsrepo.um.edu.my/8284/1/All.pdf
http://studentsrepo.um.edu.my/8284/6/fareezuan.pdf
http://studentsrepo.um.edu.my/8284/
_version_ 1738506123091116032
score 13.211869

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