Electrical Characteristic Measurement of the Fabricated CdSe / P-Si Heterojunction Solar Cell under Radiation Effect

Materials Science: An Indian Journal Pub Date : 2012-08-31 DOI:10.5923/J.MATERIALS.20120203.07

M. Ashry, S. Fares

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引用次数: 9

Abstract

The electrical and photovoltaic properties of CdSe/p-Si heterojunction solar cells prepared by evaporation cooting on a single-crystal p-type silicon substrates are examined, under(100) mw/cm 2 , 25℃. The best fabricated cell shows an open-circuit voltage before irradiation is(0.62V) and after irradiation is(0.44 V ). The short-circuit current density before irradiation is(34 mA/cm 2 ) and after irradiation is(13 mA/cm 2 ). The fill factor before irradiation is(53 %) and after irradiation is(44.7 %). The conversion efficiency(active area ) before irradiation is(11.1%) and after irradiation is(2.5%) .was observed during two-hour illumination test and after storing the cell in air for three months. The illumination is from the CdSe side(frontwall ) .The cells are analyzed using I-V and P-V measurements, spectral response and 1/C 2 -V measurements, with focus on the influence of the solar cell thickness, light intensity illumination and effective dose of γ-radiation, which play a crucial role to improve the solar cell efficiency. γ-irradiation campaign with different doses has been carried out on a series of solar cells.

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辐射效应下CdSe / P-Si异质结太阳能电池的电特性测量

在(100)mw/ cm2, 25℃条件下，研究了在单晶p型硅衬底上蒸发冷却制备的CdSe/p-Si异质结太阳能电池的电学和光伏性能。最佳制备电池辐照前开路电压为(0.62V)，辐照后开路电压为(0.44 V)。辐照前短路电流密度为(34 mA/cm 2)，辐照后短路电流密度为(13 mA/cm 2)。辐照前填充系数为53%，辐照后填充系数为44.7%。光照试验2小时及空气存放3个月观察光电池辐照前和辐照后的转换效率(有效面积)分别为11.1%和2.5%。利用I-V和P-V测量、光谱响应和1/ c2 -V测量对电池进行了分析，重点研究了太阳能电池厚度、光照强度和γ辐射有效剂量对电池效率的影响，这些因素对提高太阳能电池效率起着至关重要的作用。对一系列太阳能电池进行了不同剂量的γ辐照试验。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Materials Science: An Indian Journal

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