|
Spin-coating of Graphene Oxide as Counter Electrode for Dye-sensitized Solar Cells in Various Dispersing Solvents
Tian-Chiuan Wu1, Wei-Ming Huang1, Yu-Chi Tsao1 and Jenn-Kai Tsai1*
1Department of Electronic Engineering, National Formosa University, Yunlin 632, Taiwan
|
Abstract:
Platinum (Pt) is the most commonly used counter electrode material for DSSCs. However, as Pt is a noble metal and expensive, researchers have tried to replace the Pt counter electrode with a variety of materials. In this study, graphene oxide (GO) powders were added to solvents of different polarities as precursor solutions for the counter electrode. The solvents were deionized water, dimethylformamide, isopropanol, and chlorobenzene in descending order of polarity. The prepared GO precursor solutions were coated on the Florine doped Tin Oxide (FTO) glass substrate via spin coating, then coated substrate subjected to thermal reduction reaction to obtain reduced graphene oxide, which was used as the counter electrode of the DSSC. The photoelectric conversion efficiency (PCE) of DSSC using deionized water as the dispersing solvent was 2.70%, which was five times higher than that of DSSC using chlorobenzene.
|
|
Keywords: DSSC, Spin-coat, Graphene oxide, Counter electrode, Dispersion solvents
|
Download PDF
Received:April 13, 2022; Revised:December 01, 2022; Accepted:December 13, 2022; Published:December 30, 2022
|
|
*Corresponding author; e-mail: tsaijk@nfu.edu.tw
|
|
Citation:Wu, T.C.; Huang, W.M.; Tsao, Y.C.; Tsai, J.K.Spin-coating of Graphene Oxide as Counter Electrode for Dye-sensitized Solar Cells in Various Dispersing Solvents. Applied Functional Materials 2022, 2, 25-32. https://doi.org/10.35745/afm2022v02.04.0004
73 Views 128 Downloads |
Copyright: ©
2022
The Author(s). Published with license by IIKII, Singapore. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
|