Broadband light-trapping enhancement in an ultrathin film a-Si absorber using whispering gallery modes and guided wave modes with dielectric surface-textured structures.
Journal Article (Journal Article)
An embedded nanosphere dielectric structure on an a-Si ultrathin film improves weighted absorption from 23.8% to 39.9%. The PMMA embedding layer offers a guided wave mode as well as mechanical robustness, in addition to the resonant whispering gallery modes coupling. Broadband light-trapping enhancements are observed by dielectric surface textured structures of hemispheres, nanocones, nanospheres, or embedded nanospheres.
Full Text
Duke Authors
Cited Authors
- Kang, G; Park, H; Shin, D; Baek, S; Choi, M; Yu, D-H; Kim, K; Padilla, WJ
Published Date
- May 2013
Published In
Volume / Issue
- 25 / 18
Start / End Page
- 2617 - 2623
PubMed ID
- 23529900
Electronic International Standard Serial Number (EISSN)
- 1521-4095
International Standard Serial Number (ISSN)
- 0935-9648
Digital Object Identifier (DOI)
- 10.1002/adma.201204596
Language
- eng