Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector

We show a hybrid structure consisting of Si film with photonic crystal surface and random triangular gold grooves reflector at the bottom, which is capable of realizing efficient, broad-band, wide-angle optical absorption. It is numerically demonstrated that the enhanced absorption in a broad wavele...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Zhi-Hui, Qiao, Na, Yang, Yibiao, Ye, Han, Liu, Shaoding, Wang, Wenjie, Wang, Yuncai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4536523/
https://www.ncbi.nlm.nih.gov/pubmed/26238270
http://dx.doi.org/10.1038/srep12794
_version_ 1782385756581396480
author Chen, Zhi-Hui
Qiao, Na
Yang, Yibiao
Ye, Han
Liu, Shaoding
Wang, Wenjie
Wang, Yuncai
author_facet Chen, Zhi-Hui
Qiao, Na
Yang, Yibiao
Ye, Han
Liu, Shaoding
Wang, Wenjie
Wang, Yuncai
author_sort Chen, Zhi-Hui
collection PubMed
description We show a hybrid structure consisting of Si film with photonic crystal surface and random triangular gold grooves reflector at the bottom, which is capable of realizing efficient, broad-band, wide-angle optical absorption. It is numerically demonstrated that the enhanced absorption in a broad wavelength range (0.3–9.9 μm) due to the scattering effect of both sides of the structure and the created resonance modes. Larger thickness and period are favored to enhance the absorption in broader wavelength range. Substantial electric field concentrates in the grooves of surface photonic crystal and in the Si film. Our structure is versatile for solar cells, broadband photodetection and stealth coating.
format Online
Article
Text
id pubmed-4536523
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-45365232015-09-04 Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector Chen, Zhi-Hui Qiao, Na Yang, Yibiao Ye, Han Liu, Shaoding Wang, Wenjie Wang, Yuncai Sci Rep Article We show a hybrid structure consisting of Si film with photonic crystal surface and random triangular gold grooves reflector at the bottom, which is capable of realizing efficient, broad-band, wide-angle optical absorption. It is numerically demonstrated that the enhanced absorption in a broad wavelength range (0.3–9.9 μm) due to the scattering effect of both sides of the structure and the created resonance modes. Larger thickness and period are favored to enhance the absorption in broader wavelength range. Substantial electric field concentrates in the grooves of surface photonic crystal and in the Si film. Our structure is versatile for solar cells, broadband photodetection and stealth coating. Nature Publishing Group 2015-08-04 /pmc/articles/PMC4536523/ /pubmed/26238270 http://dx.doi.org/10.1038/srep12794 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Chen, Zhi-Hui
Qiao, Na
Yang, Yibiao
Ye, Han
Liu, Shaoding
Wang, Wenjie
Wang, Yuncai
Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector
title Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector
title_full Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector
title_fullStr Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector
title_full_unstemmed Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector
title_short Enhanced Broadband Electromagnetic Absorption in Silicon Film with Photonic Crystal Surface and Random Gold Grooves Reflector
title_sort enhanced broadband electromagnetic absorption in silicon film with photonic crystal surface and random gold grooves reflector
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4536523/
https://www.ncbi.nlm.nih.gov/pubmed/26238270
http://dx.doi.org/10.1038/srep12794
work_keys_str_mv AT chenzhihui enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector
AT qiaona enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector
AT yangyibiao enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector
AT yehan enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector
AT liushaoding enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector
AT wangwenjie enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector
AT wangyuncai enhancedbroadbandelectromagneticabsorptioninsiliconfilmwithphotoniccrystalsurfaceandrandomgoldgroovesreflector

Ejemplares similares