Open AccessEfficiency enhancement of photovoltaic performance of dye sensitized solar cell using conducting polymer electrolyte of different functional group
Author(s) -
Rana Adel,
T. Abdallah,
H. Talaat
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1253/1/012029
Subject(s) - dye sensitized solar cell , electrolyte , polyacrylonitrile , solar cell , open circuit voltage , materials science , polymer , ionic conductivity , chemical engineering , photovoltaic system , polymer chemistry , chemistry , electrode , composite material , voltage , optoelectronics , quantum mechanics , engineering , ecology , physics , biology
Dye-sensitized solar cells (DSSCs) which have a polymer electrolyte added to with various function groups were studied to determine the effect of their composition on the efficiency of the solar cell. Four function group polymers got employed, those groups are polymethylmethacrylate (PMMA), polyvinyl acetate (PVA), polyethylene oxide (PEO) and polyacrylonitrile (PAN). The iodine salt cation is caged by the function groups which cause a positive shift in the dye HOMO level and result in a deceleration in the recombination rate more than that of ordinary iodine electrolyte. The polymer electrolyte ionic conductivity improves the rate of the dye regeneration to make it faster than ordinary iodine as well. Adding pyridine to electrolyte solution makes the conduction band of the TiO 2 more negative leading to an increase in the open circuit voltage (V oc ). The photo generated current (J sc ) is increased by the employed configureuration, subsequently, the solar cell photovoltaic efficiency is enlarged. PVA is with highest efficiency at 8%, unlike the rest of the polymers which show lower efficiencies.