研究目的
Investigating the relationship between diffusion length and cell's efficiency under back-contact structure and analyzing the structure's effect on the performance of perovskite solar cells.
研究成果
The modified back-contact perovskite solar cells with optimized parameters achieved a PCE of 28.27%, showing superior performance compared to the reported back-contact structure cell and traditional p-i-n structure cell under the same material parameters.
研究不足
The study is based on simulation models which may not fully capture all real-world physical phenomena. The actual performance of the solar cells may vary due to manufacturing imperfections and environmental factors.
1：Experimental Design and Method Selection:
The calculation models of traditional p-i-n structure, Gregory D.Tainter-designed structure and a modified back-contact structure were established based on Silvaco platform.
2：Sample Selection and Data Sources:
Parameters designed in the calculation include thickness, mobility, bandgap, etc., for TiO2, CH3NH3PbI3, NiO, and SnO2 layers.
3：List of Experimental Equipment and Materials:
Silvaco platform for simulation.
4：Experimental Procedures and Operational Workflow:
A total incident power density of 100mW/cm2 (AM
5：5G) as the surface illumination source. Data Analysis Methods:
Analysis of the influence of carrier diffusion length, geometric scale, and position of back-contact buried gate on device performance.
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