期刊
SOLID STATE IONICS
卷 363, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ssi.2021.115592
关键词
Polyacrylonitrile; Iodide-Triiodide ions; Quasi solid-state polymer electrolyte; Dye-sensitized solar cell
资金
- Universiti Malaya [RK014-2019]
- Collaborative Research in Engineering, Science & Technology Center (CREST) Grant [PV027-2018]
Enhanced quasi solid-state polymer electrolytes were developed by consolidating dissolved polyacrylonitrile in a binary organic solvent with different concentrations of iodine. The electrolyte composed of one-tenth of the weight of the NaI salt achieved the highest ionic conductivity and best photovoltaic efficiency among all tested concentrations.
Enhanced quasi solid-state (QSS) polymer electrolytes were developed by consolidating dissolved polyacrylonitrile (PAN) in a binary organic solvent of ethylene carbonate-propylene carbonate (EC-PC) with ion promoters such as 1-methyl-3-propylimidazolium iodide (MPII), sodium iodide (NaI) salt, and Iodine (I2). In this work, the concentration of I2 was varied to one-twentieth, one-fifteenth, one-tenth, one-fifth, and equal of the total weight of the NaI salt used. The purpose of this study is to investigate the dependence of dye-sensitized solar cells (DSSCs) performance on the concentration of I2. Fourier-transform infrared (FTIR) spectroscopy study confirmed that there is a complexation occurred between all materials used. The electrolyte consists of I2 with one-tenth of the weight of the NaI salt (I1/10 electrolyte) has achieved the highest ionic conductivity of 8.70 x 10-3 S cm-1 at ambient temperature. From the current density-voltage (J-V) study, DSSC based I1/10 electrolyte has achieved the best photovoltaic efficiency of 6.47%.
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