Khir, Hazim and Pandey, A. K. and Saidur, R. and Ahmad, Muhammad Shakeel and Samykano, M. and Abd Rahim, Nasrudin (2024) Bismuth as efficient sintering aid for TiO2-based low temperature dye sensitized solar cell. Materials Science in Semiconductor Processing, 169. ISSN 1369-8001, DOI https://doi.org/10.1016/j.mssp.2023.107918.
Full text not available from this repository.Abstract
Flexible dye sensitized solar cell (DSSC) developed at low temperature with low conversion efficiency due to the poor interparticle contact and charge transfer has limited their further development. In this research, bismuth (Bi) nanoparticles were implemented as titanium dioxide (TiO2) photoanode sintering aid to combat this issue. By utilising the liquid phase sintering theory, interparticle contact of photoanode was improved due to neck formation at the TiO2-Bi matrix. This feat was achieved even at low temperature (150 degrees C and 200 degrees C) because Bi have a low melting point of 271.5 degrees C. The charge transfer was also found to have increased while the resistance lowered with the implementation of Bi from the plasmonic effects of Bi nanoparticles. The highest conversion efficiency was obtained at 7.93 % for the TiO2-5wt% Bi sample sintered at 200 degrees C. The efficiency was 2%-16 % higher than controlled DSSC samples prepared at high temperature (450 degrees C). The improvement in interparticle contact due to neck formation and enhanced charge transfer with reduced recombination reactions was attrib-uted as the reason for the superior performance. Increasing the Bi composition even further caused reduction in the efficiency due to layer cracking and electron trapping sites from high amount of Bi.
| Item Type: | Article |
|---|---|
| Funders: | Science and Technology Development Fund (STDF) Ministry of Higher Education & Scientific Research (MHESR) |
| Uncontrolled Keywords: | DSSC; Photoanode; TiO2; Low temperature; Bismuth |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 05 Jul 2024 03:19 |
| Last Modified: | 05 Jul 2024 03:19 |
| URI: | http://eprints.um.edu.my/id/eprint/44308 |
Actions (login required)
 |
View Item |
