Abstract
Gel polymer electrolytes were prepared using agar polymer host, NH4I, and I2 salts. The sample of agar paste with 1.0 M of NH4I and 0.2 μM of I2 exhibits the highest conductivity and lowest viscosity values at room temperature of (2.64 ± 0.19) × 10−3 S cm−1 and 1.17 ± 0.29 Pa s, respectively. All of the gel polymer electrolytes display Arrhenian behavior, and the optimum agar paste gave the lowest activation energy of 0.25 eV. It also had a good physical appearance compared with the other samples. This gel polymer electrolyte had a good potential and was applicable to a role as electrolyte in ITO-ZnO (N719 dye)/agar paste + 1.0 M NH4I + 0.2 μM I2/Au-Pd-ITO dye-sensitized solar cell.
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SSA would like to thank MOSTI for the NSF scholarship and USM-RU-PRGS for grant no. 8031020. AAM is grateful for the financial support for the study provided by USM Short Term grant no. 6039030.
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Alias, S.S., Mohamad, A.A. Effect of NH4I and I2 concentration on agar gel polymer electrolyte properties for a dye-sensitized solar cell. Ionics 19, 1185–1194 (2013). https://doi.org/10.1007/s11581-012-0840-7
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DOI: https://doi.org/10.1007/s11581-012-0840-7