研究目的
To present a simulator for modeling transport of charge carriers and electrically active defect centers in solar cells by treating them on an equal footing, addressing metastability and reliability issues.
研究成果
The PVRD-FASP solver effectively models the transport of charge carriers and defects in photovoltaic devices, validated through comparison with analytical solutions and experimental data. It offers a robust tool for studying diffusion/activation of dopants, device performance, and other relevant processes in solar cells.
研究不足
The study focuses on modeling and simulation, with validation against theoretical and some experimental data. Further experimental validation and application to a wider range of materials and conditions could enhance the study's applicability.
1：Experimental Design and Method Selection:
The study employs a numerical solver to model the transport of charge carriers and defects in photovoltaic devices, using continuity equations, drift-diffusion equation, and Poisson equation.
2：Sample Selection and Data Sources:
Parameters for the differential equations are taken from first principle calculations.
3：List of Experimental Equipment and Materials:
The solver is verified with test cases including PN heterojunctions and Cu diffusion in single crystal CdTe, comparing with Silvaco simulations.
4：Experimental Procedures and Operational Workflow:
The solver's methodology involves numerical integration of a system of nonlinear stiff differential equations.
5：Data Analysis Methods:
The solver's results are compared with analytical expressions and experimental data to validate its accuracy.
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