Improvement of N -phthaloylchitosan based gel polymer electrolyte in dye-sensitized solar cells using a binary salt system

Yusuf, S.N.F. and Azzahari, A.D. and Selvanathan, V. and Yahya, R. and Careem, M.A. and Arof, Abdul Kariem (2017) Improvement of N -phthaloylchitosan based gel polymer electrolyte in dye-sensitized solar cells using a binary salt system. Carbohydrate Polymers, 157. pp. 938-944. ISSN 0144-8617, DOI https://doi.org/10.1016/j.carbpol.2016.10.032.

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Official URL: http://dx.doi.org/10.1016/j.carbpol.2016.10.032

Abstract

A binary salt system utilizing lithium iodide (LiI) as the auxiliary component has been introduced to the N-phthaloylchitosan (PhCh) based gel polymer electrolyte consisting of ethylene carbonate (EC), dimethylformamide (DMF), tetrapropylammonium iodide (TPAI), and iodine (I2) in order to improve the performance of dye-sensitized solar cell (DSSC) with efficiency of 6.36%, photocurrent density, JSC of 17.29 mA cm−2, open circuit voltage, VOC of 0.59 V and fill factor, FF of 0.62. This efficiency value is an improvement from the 5.00% performance obtained by the DSSC consisting of only TPAI single salt system. The presence of the LiI in addition to the TPAI improves the charge injection rates and increases the iodide contribution to the total conductivity and both factors contribute to the increase in efficiency of the DSSC. The interaction behavior between polymer–plasticizer–salt was thoroughly investigated using EIS, FTIR spectroscopy and XRD.

Item Type: Article
Funders: University of Malaya: IPPP grant RP003A-13AFR and Bright Spark fellowship (BSP/APP/1903/2013)
Uncontrolled Keywords: N-Phthaloylchitosan; Gel polymer electrolyte; Fourier Transform Infrared; Electrical impedance spectroscopy; Dye-sensitized solar cell
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 12 Jun 2018 06:10
Last Modified: 04 Oct 2018 09:25
URI: http://eprints.um.edu.my/id/eprint/18869

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