论文标题
基于其光伏特性
Optimization of pin GaAs/AlGaAs Heterojunction Nanocone Array Solar Cell based on its Photovoltaic Properties
论文作者
论文摘要
在本文中，我们通过执行耦合的光电子模拟来设计和研究了径向GAAS/藻类连接纳米酮阵列太阳能电池的性能，以根据其光伏特性获得最佳的设计配置。将每个模型与其GAAS壳的表面钝化水平进行了比较。已经观察到，与具有GAAS壳的纳米酮相比，带有藻类壳的纳米酮的性能要好得多。藻类壳充当强大的屏障，将大部分光电生成限制为内部GAAS区域，并且也充当强钝化层，从而减少了由于表面效应而导致的重组损失。此外，观察到纳米酮在稀疏堆积时达到了最高的光转换效率，恒定的I壳厚度为7-9 nm，倾斜角为5度。这种增强的性能归因于整个纳米线的更有效，更扩展的光生成，强大的重叠内置电场以及较低的重组损失。
In this paper, we have designed and investigated the performance of radial GaAs/AlGaAs pin junction nanocone array solar cells by performing coupled optoelectronic simulations to obtain the most optimal design configuration based on its photovoltaic properties. Each model has been compared with its GaAs shell counterparts for different levels of surface passivations. It has been observed that the nanocones with the AlGaAs shell has a much better performance compared to those having GaAs shell. AlGaAs shell acts as a strong barrier restricting most of the photogeneration to the inner GaAs regions and it also acts as a strong passivation layer, reducing the recombination losses due to surface effects. Further, it is observed that the nanocones achieve their highest photoconversion efficiency when they are sparsely packed, with a constant i-shell thickness of 7-9 nm and have an angle of tilt of 5 degrees. This enhanced performance is attributed to a more effective and extended photogeneration throughout the nanowire length, a strong overlapping built-in electric field, and lower recombination losses.
