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Quantitative characterization of silicon solar cells in the electro-analytical approach: Combined measurements of temperature and voltage dependent electrical parameters

机译:电分析方法中硅太阳能电池的定量表征:温度和电压相关电参数的组合测量

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摘要

Electrochemical and photo-electrochemical systems, often involving solid-liquid interfaces, have traditionally dominated the field of material/device characterization using electro-analytical tools such as linear sweep voltammetry (LSV) and impedance spectroscopy (IS). Recent developments in these measurement techniques have broadened their applications to various studies of non-electrochemical solid state systems. The present work provides further experimental illustration of these latter utilities of LSV and IS through a detailed study of the temperature and voltage sensitive features of the minority carrier lifetime, series resistance and back surface field (BSF) parameters of a mono-crystalline Si solar cell. Apart from displaying their characteristic temperature dependencies, the measured parameters respond to variations in the cell voltage, and exhibit certain mutually interacting features of the observed effects. The results also demonstrate how the characteristic features of charge recombination in the quasi-neutral and space charge regions of the solar cell can be resolved with D.C. voltage dependent A.C. impedance measurements...
机译:传统上,电化学和光电化学系统通常涉及固液界面,传统上使用电分析工具如线性扫描伏安法(LSV)和阻抗谱(IS)来控制材料/设备表征领域。这些测量技术的最新发展将其应用扩展到了非电化学固态系统的各种研究中。通过对单晶硅太阳能电池的少数载流子寿命,串联电阻和背表面场(BSF)参数的温度和电压敏感特性的详细研究,本工作为LSV和IS的这些后面的效用提供了进一步的实验说明。 。除了显示其特征温度依赖性之外,所测量的参数还响应电池电压的变化,并表现出所观察到的效果的某些相互影响的特征。结果还证明了如何通过直流电压相关的交流阻抗测量来解决太阳能电池准中性和空间电荷区域中电荷复合的特征...

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