材料科学
多物理
光电子学
能量转换效率
太阳能电池
量子效率
光学
吸收(声学)
等离子太阳电池
时域有限差分法
太阳能电池效率
反射损耗
短路
反射(计算机编程)
硅
制作
波长
聚合物太阳能电池
复合材料
有限元法
电压
病理
物理
程序设计语言
替代医学
复合数
热力学
医学
量子力学
计算机科学
作者
Le Chen,Bowen Fang,Qinglin Ke,Peihua Wangyang,Kexiang Hu,Wentao Zhang
出处
期刊:AIP Advances
[American Institute of Physics]
日期:2022-01-01
卷期号:12 (1)
被引量:4
摘要
Enhancing light absorption is an important way for solar cells to increase the conversion efficiency. In this paper, we prepared a quasi-hemispherical pit array texture on the glass surface through the micro-fabrication process. Then, silicon thin-film (a-Si:H) solar cells were deposited on the other smooth surface. Pit array textured cells exhibit a higher short-circuit current density and power conversion efficiency than flat devices by ∼7% and 5%, respectively. The reflectance spectrum of textured solar cells is considerably reduced, and the external quantum efficiency is considerably improved in the 300–800 nm wavelength range. Through COMSOL Multiphysics and finite-difference time-domain (FDTD) simulation, three significant effects identify light-trapping characteristics for textured structures: surface reflection reduction, secondary absorption, and light scattering. As a result, the textured surface of the quasi-hemispherical pit array can considerably increase the efficiency of solar cells. Meanwhile, the Lumerical DEVICE software was used to simulate the electrical characteristics of the cell, and the experimental results were theoretically proven.
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