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Exact comprehensive equations for the photon management properties of silicon nanowire

Unique photon management (PM) properties of silicon nanowire (SiNW) make it an attractive building block for a host of nanowire photonic devices including photodetectors, chemical and gas sensors, waveguides, optical switches, solar cells, and lasers. However, the lack of efficient equations for the...

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Autores principales: Li, Yingfeng, Li, Meicheng, Li, Ruike, Fu, Pengfei, Wang, Tai, Luo, Younan, Mbengue, Joseph Michel, Trevor, Mwenya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4840328/
https://www.ncbi.nlm.nih.gov/pubmed/27103087
http://dx.doi.org/10.1038/srep24847
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author Li, Yingfeng
Li, Meicheng
Li, Ruike
Fu, Pengfei
Wang, Tai
Luo, Younan
Mbengue, Joseph Michel
Trevor, Mwenya
author_facet Li, Yingfeng
Li, Meicheng
Li, Ruike
Fu, Pengfei
Wang, Tai
Luo, Younan
Mbengue, Joseph Michel
Trevor, Mwenya
author_sort Li, Yingfeng
collection PubMed
description Unique photon management (PM) properties of silicon nanowire (SiNW) make it an attractive building block for a host of nanowire photonic devices including photodetectors, chemical and gas sensors, waveguides, optical switches, solar cells, and lasers. However, the lack of efficient equations for the quantitative estimation of the SiNW’s PM properties limits the rational design of such devices. Herein, we establish comprehensive equations to evaluate several important performance features for the PM properties of SiNW, based on theoretical simulations. Firstly, the relationships between the resonant wavelengths (RW), where SiNW can harvest light most effectively, and the size of SiNW are formulized. Then, equations for the light-harvesting efficiency at RW, which determines the single-frequency performance limit of SiNW-based photonic devices, are established. Finally, equations for the light-harvesting efficiency of SiNW in full-spectrum, which are of great significance in photovoltaics, are established. Furthermore, using these equations, we have derived four extra formulas to estimate the optimal size of SiNW in light-harvesting. These equations can reproduce majority of the reported experimental and theoretical results with only ~5% error deviations. Our study fills up a gap in quantitatively predicting the SiNW’s PM properties, which will contribute significantly to its practical applications.
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spelling pubmed-48403282016-04-28 Exact comprehensive equations for the photon management properties of silicon nanowire Li, Yingfeng Li, Meicheng Li, Ruike Fu, Pengfei Wang, Tai Luo, Younan Mbengue, Joseph Michel Trevor, Mwenya Sci Rep Article Unique photon management (PM) properties of silicon nanowire (SiNW) make it an attractive building block for a host of nanowire photonic devices including photodetectors, chemical and gas sensors, waveguides, optical switches, solar cells, and lasers. However, the lack of efficient equations for the quantitative estimation of the SiNW’s PM properties limits the rational design of such devices. Herein, we establish comprehensive equations to evaluate several important performance features for the PM properties of SiNW, based on theoretical simulations. Firstly, the relationships between the resonant wavelengths (RW), where SiNW can harvest light most effectively, and the size of SiNW are formulized. Then, equations for the light-harvesting efficiency at RW, which determines the single-frequency performance limit of SiNW-based photonic devices, are established. Finally, equations for the light-harvesting efficiency of SiNW in full-spectrum, which are of great significance in photovoltaics, are established. Furthermore, using these equations, we have derived four extra formulas to estimate the optimal size of SiNW in light-harvesting. These equations can reproduce majority of the reported experimental and theoretical results with only ~5% error deviations. Our study fills up a gap in quantitatively predicting the SiNW’s PM properties, which will contribute significantly to its practical applications. Nature Publishing Group 2016-04-22 /pmc/articles/PMC4840328/ /pubmed/27103087 http://dx.doi.org/10.1038/srep24847 Text en Copyright © 2016, 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
Li, Yingfeng
Li, Meicheng
Li, Ruike
Fu, Pengfei
Wang, Tai
Luo, Younan
Mbengue, Joseph Michel
Trevor, Mwenya
Exact comprehensive equations for the photon management properties of silicon nanowire
title Exact comprehensive equations for the photon management properties of silicon nanowire
title_full Exact comprehensive equations for the photon management properties of silicon nanowire
title_fullStr Exact comprehensive equations for the photon management properties of silicon nanowire
title_full_unstemmed Exact comprehensive equations for the photon management properties of silicon nanowire
title_short Exact comprehensive equations for the photon management properties of silicon nanowire
title_sort exact comprehensive equations for the photon management properties of silicon nanowire
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4840328/
https://www.ncbi.nlm.nih.gov/pubmed/27103087
http://dx.doi.org/10.1038/srep24847
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