Investigation the absorption efficiency of GaAs/InAs nanowire solar cells

被引：6

作者：

Abed, Farah A. ^{[1
]}

Ali, Latef M. ^{[2
]}

机构：

[1] Erbil Polytech Univ, Dept Elect, Erbil Technol Coll, Erbil, Iraq

[2] Erbil Polytech Univ, Mech & Energy Dept, Erbil Technol Coll, Erbil, Iraq

来源：

JOURNAL OF LUMINESCENCE | 2021年 / 237卷

关键词：

Nanowire solar cells; Absorption efficiency; Photovoltaic; Band structures; FDTD simulation; LIGHT-ABSORPTION; GAAS; PERFORMANCE; MANAGEMENT; CONVERSION; WURTZITE; SURFACE; OPTICS; ARRAYS;

D O I：

10.1016/j.jlumin.2021.118171

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, the absorption efficiency (Qabs) of GaAs/InAs core-shell nanowires on Si (111) for normal incident light is investigated. Simulations show the influences of NW diameter on the Qabs of the structure. Using the finite-difference time-domain (FDTD) and Mie theory, the highest Qabs for NW solar cells were obtained at a core diameter of 220 nm and a shell thickness of 35 nm. Additionally, the wavelength-dependent external quantum efficiencies (EQEs) for NWs were investigated. Numerical simulation of current density-voltage (J-V) characteristics of nanowires under illuminated conditions was studied. Furthermore, the band structure for GaAs coreshell nanowires was calculated. Optimized geometric parameters are obtained through the simulations.

引用

页数：5

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