外磁场和空气质量对双面太阳能电池瞬态载流子有效寿命的影响

Alain Diasso, R. Sam, F. Zougmore
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引用次数: 0

摘要

本文从理论上研究了外加磁场和空气质量对多晶硅太阳电池载流子密度、瞬态开路电压衰减和有效少数载流子寿命的影响。采用基于晶粒柱状模型和准中性基底的理论方法,建立了三维扩散方程,定义了边界条件,并利用格林函数求解该方程。并给出了载流子密度和瞬态电压的解析表达式。分析了磁场和空气质量对瞬态电子密度和瞬态开路电压的影响。从不同磁场和空气质量下瞬态开路电压衰减随时间的变化曲线中提取有效少数载流子寿命。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
External Magnetic Field and Air Mass Effects on Carrier’s Effective Lifetime of a Bifacial Solar Cell under Transient State
This paper presents a theoretical study of the external magnetic field and the air mass effects on the carrier density, the transient open circuit voltage decay and the effective minority carrier’s lifetime in a polycrystalline silicon solar cell. From a theoretical approach based on the columnar model of the grains and the quasi-neutral base, the three-dimensional diffusion equation is established and the boundaries conditions are defined in order to use Green’s functions to solve this equation. New analytical expressions of carrier’s density and transient voltage are also found. The magnetic field and the air mass impacts on transient electrons density and transient open circuit voltage are then analyzed. The effective minority carrier lifetime is extracted from the curve versus time of transient open circuit voltage decay for different values of magnetic field and air mass.
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