Cover Image

Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan

Solar energy is the most abundant and clean source of energy on the earth. Recently scientists have been able to develop a technology to harvest solar energy and today we are able to convert the sunlight directly to the electricity. Dye-sensitized solar cells (DSSCs) are one of the promising solar h...

Full description

Saved in:
Bibliographic Details
Main Author: Negar , Zebardastan
Format: Thesis
Published: 2017
Subjects:
Q Science (General)
QC Physics
Online Access:http://studentsrepo.um.edu.my/9322/1/Negar_Zrbardastan.pdf
http://studentsrepo.um.edu.my/9322/6/negar.pdf
http://studentsrepo.um.edu.my/9322/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.stud.9322
record_format eprints
spelling my.um.stud.93222020-06-23T18:19:22Z Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan Negar , Zebardastan Q Science (General) QC Physics Solar energy is the most abundant and clean source of energy on the earth. Recently scientists have been able to develop a technology to harvest solar energy and today we are able to convert the sunlight directly to the electricity. Dye-sensitized solar cells (DSSCs) are one of the promising solar harvesting technologies with numerous advantages over the other technologies such as silicon based solar cells. Usually high performance DSSCs are obtained using liquid electrolyte which face several drawbacks for long term usage, such as leakage, electrolyte evaporation and interface corrosion. Gel polymer electrolyte can be an alternative to overcome these issues but the ionic conductivity of this gel polymer electrolytes must be improved to achieve high energy conversion efficiency. In this work we studied three gel polymer electrolyte (GPE) systems and the performance of DSSCs using GPEs have been analyzed. These GPEs are formulated by blending Poly(vinylidene fluoride-co-hexafluoro propylene) copolymer (PVdF-HFP) and polyethylene oxide (PEO) polymers. First, incorporation of sodium iodide (NaI) salt in different concentrations in the GPE system is investigated and later the addition of fumed silica (SiO2) and zinc oxide (ZnO) nanofiller into the GPE system are studied. GPEs are examined using electrochemical impedance spectroscopy (EIS) to determine ionic conductivity values. The highest ionic conductivities of 6.38, 8.84 and 8.36 mS cm−1 are achieved after the incorporation of 100 wt.% of sodium iodide (NaI), 13 wt.% of fumed silica (SiO2) and 3 wt.% of ZnO in each system, respectively. Temperature-dependent ionic conductivity study confirms that GPE systems follow Arrhenius thermal activated model. GPEs are characterized for structural studies using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. DSSCs are fabricated using GPEs and need to be recorded under 1 Sun simulator which produced the significant highest energy conversion efficiency of 5.67, 9.44 and 9.08 % with incorporation of 100 wt.% of sodium iodide (NaI) with respect to the total weight of PEO:PVdF-HFP polymers, 13 wt.% of fumed silica (SiO2) and 3 wt.% of ZnO in each system, respectively. 2017-07 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/9322/1/Negar_Zrbardastan.pdf application/pdf http://studentsrepo.um.edu.my/9322/6/negar.pdf Negar , Zebardastan (2017) Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan. Masters thesis, University of Malaya. http://studentsrepo.um.edu.my/9322/
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
Negar , Zebardastan
Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan
description Solar energy is the most abundant and clean source of energy on the earth. Recently scientists have been able to develop a technology to harvest solar energy and today we are able to convert the sunlight directly to the electricity. Dye-sensitized solar cells (DSSCs) are one of the promising solar harvesting technologies with numerous advantages over the other technologies such as silicon based solar cells. Usually high performance DSSCs are obtained using liquid electrolyte which face several drawbacks for long term usage, such as leakage, electrolyte evaporation and interface corrosion. Gel polymer electrolyte can be an alternative to overcome these issues but the ionic conductivity of this gel polymer electrolytes must be improved to achieve high energy conversion efficiency. In this work we studied three gel polymer electrolyte (GPE) systems and the performance of DSSCs using GPEs have been analyzed. These GPEs are formulated by blending Poly(vinylidene fluoride-co-hexafluoro propylene) copolymer (PVdF-HFP) and polyethylene oxide (PEO) polymers. First, incorporation of sodium iodide (NaI) salt in different concentrations in the GPE system is investigated and later the addition of fumed silica (SiO2) and zinc oxide (ZnO) nanofiller into the GPE system are studied. GPEs are examined using electrochemical impedance spectroscopy (EIS) to determine ionic conductivity values. The highest ionic conductivities of 6.38, 8.84 and 8.36 mS cm−1 are achieved after the incorporation of 100 wt.% of sodium iodide (NaI), 13 wt.% of fumed silica (SiO2) and 3 wt.% of ZnO in each system, respectively. Temperature-dependent ionic conductivity study confirms that GPE systems follow Arrhenius thermal activated model. GPEs are characterized for structural studies using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. DSSCs are fabricated using GPEs and need to be recorded under 1 Sun simulator which produced the significant highest energy conversion efficiency of 5.67, 9.44 and 9.08 % with incorporation of 100 wt.% of sodium iodide (NaI) with respect to the total weight of PEO:PVdF-HFP polymers, 13 wt.% of fumed silica (SiO2) and 3 wt.% of ZnO in each system, respectively.
format Thesis
author Negar , Zebardastan
author_facet Negar , Zebardastan
author_sort Negar , Zebardastan
title Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan
title_short Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan
title_full Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan
title_fullStr Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan
title_full_unstemmed Poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / Negar Zebardastan
title_sort poly (vinylidene fluoride-co-hexafluoro propylene) / polyethylene oxide-based nanoparticles reinforced gel polymer electrolytes for dye-sensitized solar cell / negar zebardastan
publishDate 2017
url http://studentsrepo.um.edu.my/9322/1/Negar_Zrbardastan.pdf
http://studentsrepo.um.edu.my/9322/6/negar.pdf
http://studentsrepo.um.edu.my/9322/
_version_ 1738506251339300864
score 13.211869

Similar Items