Selvanathan, Vidhya and Yahya, Rosiyah and Shahiduzzaman, Md and Ruslan, Mohd. Hafidz and Muhammad, Ghulam and Amin, Nowshad and Akhtaruzzaman, Md. (2021) Ionic liquid infused starch-cellulose derivative based quasi-solid dye-sensitized solar cell: Exploiting the rheological properties of natural polymers. Cellulose, 28 (9). pp. 5545-5557. ISSN 0969-0239, DOI https://doi.org/10.1007/s10570-021-03854-2.
Full text not available from this repository.Abstract
Starch and cellulose have long been used in various industrial applications as gelating agents. In this work, the intrinsic adhesive properties of these biopolymers are exploited for application as electrolytes in DSSC. Firstly, potato starch was chemically modified into phthaloyl starch in a facile esterification process. Fabrication of polymer electrolyte with phthaloyl starch (PhSt) and hydroxyethyl cellulose (HEC) incorporated with dimethylformamide and tetrapropylammonium iodide produced homogeneous gels with diminished crystallinity. Infusion of different weight percentages of 1-butyl-3-methylimidazolium iodide (BMII) into the gels were revealed to further suppress polymer crystallinity and elevate ionic conductivity. Rheological analysis revealed that addition of up to 6 wt% of ionic liquid aid in elevating the rigidity, strength and tackiness of the gels. The improved adhesiveness of the gels can be correlated to effective reduction of interfacial resistance and restraining of recombination reactions based on electrochemical impedance spectroscopy. Quasi-solid DSSC fabricated with PhSt-HEC with 8 wt% of BMII exhibited enhanced short-circuit current density, J(SC) and fill factor, contributing to an optimized efficiency of 5.20%. Graphic abstract
| Item Type: | Article |
|---|---|
| Funders: | Universiti Kebangsaan Malaysia [Grant No: RFA 1], King Saud University [Grant No: RSP-2020/34] |
| Uncontrolled Keywords: | Phthaloyl starch; Hydroxyethyl cellulose; Rheology; Quasi-solid electrolyte; Dye-sensitized solar cell |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 20 Apr 2022 08:11 |
| Last Modified: | 20 Apr 2022 08:28 |
| URI: | http://eprints.um.edu.my/id/eprint/28727 |
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