Study of the Effect of Exciton Annihilation Lifetime on Some Kinematic and Intrinsic Parameters of a Silicon Heterojunction Solar Cell (HIT), Illuminated by Monochromatic Light

Ousmane Ngom *

Department of Physics, Faculty of Science and Technology, Laboratory of Semiconductors and Solar Energy, University Cheikh Anta DIOP, Dakar, Senegal.

Amaky Badiane

Department of Physics, Faculty of Science and Technology, Laboratory of Semiconductors and Solar Energy, University Cheikh Anta DIOP, Dakar, Senegal.

Modou Faye

Department of Physics, Faculty of Science and Technology, Laboratory of Semiconductors and Solar Energy, University Cheikh Anta DIOP, Dakar, Senegal.

Cheikh Mbow

Department of Physics, Faculty of Science and Technology, Laboratory of Fluid Mechanics, Hydraulics and Transfers, University Cheikh Anta DIOP, Dakar, Senegal.

Bassirou Ba

Department of Physics, Faculty of Science and Technology, Laboratory of Semiconductors and Solar Energy, University Cheikh Anta DIOP, Dakar, Senegal.

*Author to whom correspondence should be addressed.


Abstract

In this article, with a view to improving the efficiency of photovoltaic cells, and given the promising yields of silicon heterojunction photovoltaic cells, we have, using a silicon heterojunction cell (a-Si:H/c-Si) doped with (n+p) , studied the contribution of excitons to the internal quantum efficiency of charge carriers.

We then developed a detailed explanation of the energy conversion phenomena, based on an exciton-exciton annihilation process, which allows the electrons of quasiparticles to retain some of their energy. We used a numerical method for solving the charge carrier transport equations and carried out some additional calculations, which enabled us to obtain some results.

These results then enabled us to study the influence of the annihilation lifetime on the charge carrier photo-current density, leading to internal charge carrier quantum yields of between 29.29768% and 77.8525%.

Keywords: Photovoltaic system, electricity grid, self-consumption, self-generation, expense, profitability


How to Cite

Ngom , Ousmane, Amaky Badiane, Modou Faye, Cheikh Mbow, and Bassirou Ba. 2024. “Study of the Effect of Exciton Annihilation Lifetime on Some Kinematic and Intrinsic Parameters of a Silicon Heterojunction Solar Cell (HIT), Illuminated by Monochromatic Light”. Physical Science International Journal 28 (4):102-18. https://doi.org/10.9734/psij/2024/v28i4841.

Downloads

Download data is not yet available.