Nano Archive

Design of light scattering in nanowire materials for photovoltaic applications

Muskens, Otto L. and Rivas, Jaime Gomez and Algra, Rienk E. and Bakkers, Erik P. A. M. and Lagendijk, Ad (2008) Design of light scattering in nanowire materials for photovoltaic applications. NANO LETTERS, 8 (9). pp. 2638-2642.

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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.

Item Type:Article
Subjects:Technology > Manufacturing processes for nanotechnology
Physical Science > Photonics
Engineering > Nanotechnology applications in ICT
ID Code:1927
Deposited By:Farnush Anwar
Deposited On:16 Dec 2008 10:29
Last Modified:16 Dec 2008 10:29

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