Optical properties of Si microwires combined with nanoneedles for flexible thin film photovoltaics
- Authors
- Park, Kwang-Tae; Guo, Zhongyi; Um, Han-Don; Jung, Jin-Young; Yang, Jun Mo; Lim, Sung Kyu; Kim, Young Su; Lee, Jung-Ho
- Issue Date
- Jan-2011
- Publisher
- Optical Society of America
- Keywords
- NANOWIRE SOLAR-CELLS; SILICON NANOWIRE; ENHANCEMENT; ABSORPTION; ARRAYS
- Citation
- Optics Express, v.19, no.1, pp.A41 - A50
- Indexed
- SCIE
SCOPUS
- Journal Title
- Optics Express
- Volume
- 19
- Number
- 1
- Start Page
- A41
- End Page
- A50
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/38308
- DOI
- 10.1364/OE.19.000A41
- ISSN
- 1094-4087
- 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 similar 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. (C)2010 Optical Society of America
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