用于光伏应用的硅纳米孔阵列的基于模式的分析。

Mode-based analysis of silicon nanohole arrays for photovoltaic applications.

作者信息

Donnelly Justin L, Sturmberg Björn C P, Dossou Kokou B, Botten Lindsay C, Asatryan Ara A, Poulton Christopher G, McPhedran Ross C, Martijn de Sterke C

出版信息

Opt Express. 2014 Aug 25;22 Suppl 5:A1343-54. doi: 10.1364/OE.22.0A1343.

DOI:10.1364/OE.22.0A1343

PMID:25322189

Abstract

We investigate the optical properties of silicon nanohole arrays for application in photovoltaic cells in terms of the modes within the structure. We highlight three types of modes: fundamental modes, important at long wavelengths; guided resonance modes, which enhance absorption for wavelengths where the intrinsic absorption of silicon is low; and channeling modes, which suppress front-surface reflection. We use this understanding to explain why the parameters of optimized nanohole arrays occur in specific ranges even as the thickness is varied.

摘要

我们从结构内的模式角度研究用于光伏电池的硅纳米孔阵列的光学特性。我们着重介绍三种模式：基模，在长波长下很重要；导模共振模式，可增强硅本征吸收较低波长处的吸收；以及通道模式，可抑制前表面反射。我们利用这一认识来解释为何即使厚度变化，优化后的纳米孔阵列参数仍出现在特定范围内。