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Opt Express. 2011 Jan 3;19 Suppl 1:A41-50. doi: 10.1364/OE.19.000A41.

Optical properties of Si microwires combined with nanoneedles for flexible thin film photovoltaics.

Author information

1
1Department of Bio-Nano Technology, Hanyang University, Ansan 426-791, Korea.

Abstract

A combined wire structure, made up of longer periodic Si microwires and short nanoneedles, was prepared to enhance light absorption using one-step plasma etching via lithographical patterning. The combined wire array exhibited light absorption of up to ~97.6% from 300 to 1100 nm without an anti-reflection coating. These combined wire arrays on a Si substrate were embedded into a transparent polymer. A large-scale wire-embedded soft film was then obtained by peeling the polymer-embedded wire portion from the substrate. Optically attractive features were present in these soft films, making them suitable for use in flexible silicon solar cell applications.

PMID:
21263711

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