FDTD modeling of solar energy absorption in silicon branched nanowires

被引：21

作者：

Lundgren, Christin ^{[1
]}

Lopez, Rene ^{[2
]}

Redwing, Joan ^{[3
]}

Melde, Kathleen ^{[1
]}

机构：

[1] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA

[2] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 09期

基金：

美国国家科学基金会;

关键词：

OPTICAL-ABSORPTION; ARRAYS; NANOTREES; GROWTH;

D O I：

10.1364/OE.21.00A392

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost of solar energy. FDTD modeling of branched nanowire 'forests' are shown to have improved optical absorption in the visible and near-IR spectra over nanowire arrays alone, with a factor of 5 enhancement available at 1000 nm. Alternate BNW tree configurations are presented, achieving a maximum absorption of over 95% at 500 nm. (C) 2013 Optical Society of America

引用

页码：A392 / A400

页数：9

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