Impedance spectroscopy of crystalline silicon solar cell: Observation of negative capacitance
Impedance spectroscopy of crystalline silicon solar cell: Observation of negative capacitance
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DOI：
10.1016/j.solener.2016.06.041
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发表时间：
2016-10
期刊：
影响因子：
6.7
通讯作者：
Jagannath Panigrahi;Vandana;Rajbir Singh;Neha Batra;Jhuma Gope;M. Sharma;P. Pathi;S. Srivastava;C. Rauthan;P. K. Singh
中科院分区：
文献类型：
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作者：
Jagannath Panigrahi;Vandana;Rajbir Singh;Neha Batra;Jhuma Gope;M. Sharma;P. Pathi;S. Srivastava;C. Rauthan;P. K. Singh
太阳能电池/阵列的交流参数的知识是重要的高性能功率调节电路的设计，以匹配在操作条件下的输入。在正向偏压条件下，在不同的光照水平下，利用阻抗谱对晶体硅太阳电池进行了系统的研究。一个“负电容”的行为，观察到在低频率区域下的正向偏置电压和低照明水平。用含电感元件的等效电路对实验数据进行了拟合，并根据等效电路模型解释了赝电容行为。
The knowledge of ac parameters of solar cells/arrays is important for designing of high performance power conditioning circuits to match the input at operating conditions. A systematic study of crystalline silicon solar cells is done using impedance spectroscopy under forward bias conditions and at different illumination levels. A “negative capacitance” behaviour is observed in the low frequency region under forward bias voltages and at low illumination levels. An electrical equivalent circuit with inductive component is used to fit the experimental data and the pseudo-capacitance behaviour is explained on the basis of an equivalent circuit model.