Design of light scattering in nanowire materials for photovoltaic applications

被引：418
作者：
Muskens, Otto L. [1 ]
Rivas, Jaime Gomez [1 ,2 ]
Algra, Rienk E. [2 ,3 ,4 ]
Bakkers, Erik P. A. M. [2 ]
Lagendijk, Ad [1 ]
机构：
[1] FOM, Inst Atom & Mol Phys AMOLF, Ctr Nanophoton, NL-1098 SJ Amsterdam, Netherlands
[2] Philips Res Labs, NL-5656 AE Eindhoven, Netherlands
[3] Mat Innovat Inst, NL-2628 CD Delft, Netherlands
[4] Radboud Univ Nijmegen, Inst Mol & Mat, Dept Solid State Chem, NL-6525 ED Nijmegen, Netherlands
来源：
NANO LETTERS | 2008年 / 8卷 / 09期
关键词：
D O I：
10.1021/nl0808076
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We experimentally investigate the optical properties of layers of InP, Si, and GaP nanowires, relevant for applications in solar cells. The nanowires are strongly photonic, resulting in a significant coupling mismatch with incident light due to multiple scattering. We identify a design principle for the effective suppression of reflective losses, based on the ratio of the nondiffusive absorption and diffusive scattering lengths. Using this principle, we demonstrate successful suppression of the hemispherical diffuse reflectance of InP nanowires to below that of the corresponding transparent effective medium. The design of light scattering in nanowire materials is of large importance for optimization of the external efficiency of nanowire-based photovoltaic devices.
引用
收藏
页码：2638 / 2642
页数：5
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