Ahmad Jamal, Saidatul Nur Aisyahtun Sakinah (2024) Numerical analysis of one-dimensional perovskite solar cell using drift diffusion equations. Masters thesis, Universiti Teknikal Malaysia Melaka.
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Abstract
Solar energy, one of the renewable energies with infinite sources all over the world apart from wind, biomass, water, and geothermal, is gaining much attention from researchers since the invention of wafer-based technology (using silicon), thin film technologies using Cadmium Telluride (CdTe) and Copper Indium Gallium Selenide (CIGS), and emerging film technologies, including perovskites solar cells. The perovskites solar cell (PSC) has been proven to possess a high-efficiency achievement. However, the instability issue in its moisture, light and temperature leads to current-voltage hysteresis, which always becomes a major concern for the perovskite solar cell under operational conditions. The situation is caused by the diffusion of mechanisms of charge transport and charge release at the interface between layers by the migration mechanism, which dominates the global electrical field. Another challenge in modelling the solar cell is to account for the dynamic physics behaviour, which requires a comprehensive model to relate all the dynamic mechanisms that can give information and insight into the perovskite solar cell. Hence, this study is carried out to identify the one-dimensional drift-diffusion equation of the n-i-p perovskite solar cell that accounts for the dynamic process of the solar cell mechanism, to solve the equation of the perovskite solar cell numerically and develop the current density against voltage (J-V) curve using the folding method, as well as to analyse the performance of perovskite solar cells. The numerical scheme used the Method of Line (MOL) procedure and Chebfun. An analysis of the efficiency of perovskite solar cell’s factors based on the effect of varying thickness, doping density, diffusion coefficient, temperature, photo-generated current density, recombination current density and resistivity in steady-state conditions was studied. Findings revealed that the optimisation of thickness, diffusion coefficient, doping density level, resistivity, and recombination current density of the perovskite solar cell increased the efficiency of perovskite solar cells from 10.69% to 28.53%. The main contribution of this work is providing a reliable and flexible numerical scheme to the dynamic perovskite solar cell model that requires high and complex numerical literacy skills. The MOL is an efficient numerical technique for the conversion of partial differential equations (PDE) into ordinary differential equations (ODE) in drift-diffusion equations of the perovskite solar cell in unsteady-state conditions. The folding method can reduce the complexity of the numerical scheme by transforming the drift-diffusions equations in three types of transport layers into a set of transformed equations in one transport layer for steady-state conditions. The results of the analysis of parameter variation provide information on the idea of improving perovskite solar cell efficiency in the future.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Solar energy, Wafer-based technology, Thin film technologies |
| Divisions: | Library > Tesis > FTKE |
| Depositing User: | Muhamad Hafeez Zainudin |
| Date Deposited: | 14 Feb 2025 16:45 |
| Last Modified: | 14 Feb 2025 16:45 |
| URI: | http://eprints.utem.edu.my/id/eprint/28547 |
| Statistic Details: | View Download Statistic |
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