太阳能电池
材料科学
量子效率
异质结
接受者
图层(电子)
带隙
非晶硅
微晶
硅
无定形固体
光电子学
聚合物太阳能电池
分析化学(期刊)
晶体硅
纳米技术
化学
结晶学
物理
凝聚态物理
色谱法
作者
Md. Nazmul Islam Sarkar,Himangshu Ranjan Ghosh
出处
期刊:The Dhaka University Journal of Science
[Bangladesh Journals Online]
日期:2021-12-01
卷期号:69 (2): 88-95
标识
DOI:10.3329/dujs.v69i2.56488
摘要
In this work, the solar cell design parameters like- layer thickness, bandgap, donor and acceptor concentrations are varied to find optimum structure of a hydrogenated amorphous silicon (a-Si:H) and hydrogenated microcrystalline silicon (μc-Si:H) heterojunction p-i-n solar cell. A thin a-Si:H p-layer of 1 to 5 nm followed by a thick a-Si:H i-layer of thickness 1400 to 1600 nm and then thin n-layer of thickness 1 to 5 nm with acceptor concentration of 102 cm−3 and donor concentration of 1020 cm−3 and the bandgaps of p-, i-, and n- layers with higher bandgaps closer to 2.2 eV for a-Si:H p-layer, 1.85 eV for a-Si:H i-layer, and 1.2 eV for μc-Si:H n-layer have showed better performances. The optimum cell has a JSC of 18.93 mA/cm2, VOC of 1095 mV, Fill factor of 0.7124, and efficiency of 14.77%. The overall external quantum efficiency of the numerically designed cell also remained very high from 85-95 % for wavelengths of 300-650 nm range. This indicates that the device will perform its best under both high and low frequency i.e. ultra-violet, near visible and visible light wavelengths. Dhaka Univ. J. Sci. 69(2): 88-95, 2021 (July)
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