Arafat, Md Yasir and Islam, Mohammad Aminul and Bin Mahmood, Ahmad Wafi and Abdullah, Fairuz and Kiong, Tiong Sieh and Amin, Nowshad (2021) Study of black silicon wafer through wet chemical etching for parametric optimization in enhancing solar cell performance by PC1D numerical simulation. Crystals, 11 (8). ISSN 2073-4352, DOI https://doi.org/10.3390/cryst11080881.
Full text not available from this repository.Abstract
Black silicon (BSi) fabrication via surface texturization of Si-wafer in recent times has become an attractive concept regarding photon trapping and improved light absorption properties for photovoltaic applications. In this study, surface texturization has been conducted on mono-crystalline Si(100) wafer using a wet chemical anisotropic etching process with IPA:KOH solution to form micro-pyramidal surface structures. Moreover, the optimized properties of the fabricated BSi wafers are used for numerical simulation using PC1D software to analyze the performance of the solar cell and establish the correlation among relevant parameters. Effects such as doping concentration, texturization, passivation, and anti-reflection coating of BSi on the solar cell performance have numerically been investigated. Results show that textured surface obtained from the wet chemical anisotropic etching process has successfully reduced the reflectance of the BSi wafer and surpassed the solar cell efficiency by 2%, which is mainly attributed to the optical confinement of the textured pyramids on the surface with a height of 1-2 mu m and angles of 70 degrees. Furthermore, the doping concentration of the p-type wafer and n-type emitter were optimized to be 1 x 10(16) cm(-3) and 1 x 10(18) cm(-3), respectively. In the case of device optimization, the SiO2 passivation layer with a refractive index of 1.48 and the Si3N4 ARC layer with a refractive index of 2.015 has been identified as the best combination for the solar cell performance. These optimized parameters eventually result in 23.14% conversion efficiency from numerical simulation for solar cells that use black silicon wafers as fabricated in this study.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education of Malaysia (MOHE) (FRGS/1/2018/STG07/UNITEN/01/3), iRMC of Universiti Tenaga Nasional (UNITEN) |
| Uncontrolled Keywords: | Black-Si; Wet chemical etching; Nanotexure; Reflectance; FESEM; PC1D |
| Subjects: | Q Science > Q Science (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 12 Aug 2022 07:50 |
| Last Modified: | 12 Aug 2022 07:50 |
| URI: | http://eprints.um.edu.my/id/eprint/28488 |
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