Efficiency enhancement of WSe2 heterojunction solar cell with CuSCN as a hole transport layer: A numerical simulation approach
| Autor: | Abu Zafor Md. Touhidul Islam, Md. Hasan Ali, Md. Dulal Haque |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Open-circuit voltage business.industry Photovoltaic system Energy conversion efficiency Heterojunction Capacitance law.invention chemistry.chemical_compound chemistry law Solar cell Optoelectronics Tungsten diselenide General Materials Science Quantum efficiency business |
| Zdroj: | Solar Energy. 230:528-537 |
| ISSN: | 0038-092X |
| DOI: | 10.1016/j.solener.2021.10.054 |
| Popis: | In this research work, the tungsten diselenide (WSe2)-based thin-film solar cell with a copper thiocyanate (CuSCN) hole transport layer (HTL) has been designed and studied by using the Solar Cell Capacitance Simulator in One Dimension software program (SCAPS-1D). A comparative numerical study between Al/ITO/CdS/WSe2/Ni and Al/ITO/CdS/WSe2/CuSCN/Ni has been done. The SCAPS-1D simulator has been utilized to investigate photovoltaic parameters such as open circuit voltage, short-circuit current density, fill-factor, power conversion efficiency and quantum efficiency of heterojunction solar cell due to the variation of thickness, doping density, bulk defect density, defect density at buffer/absorber and absorber/HTL interfaces, operating temperature, band alignment and back surface recombination velocity. The conversion efficiency of 17.33% has been determined for the WSe2 solar cell without HTL. On the contrary, the efficiency of the proposed solar cell with CuSCN HTL has been found to be 24.20% at the optimal device structure. These numerical findings of the present study may therefore provide an intuitive approach to fabricate an economically feasible and highly efficient WSe2-based heterojunction thin-film solar cell. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect