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Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source
The realization of an innovative hybrid light source operating at room temperature, obtained by embedding a carbon nanotube (CNT) dispersion inside a Si nanowire (NW) array is reported. The NW/CNT system exhibits a peculiar photoluminescence spectrum, consisting of a wide peak, mainly observed in th...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4655395/ https://www.ncbi.nlm.nih.gov/pubmed/26592198 http://dx.doi.org/10.1038/srep16753 |
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author | Lo Faro, Maria Josè D’Andrea, Cristiano Messina, Elena Fazio, Barbara Musumeci, Paolo Reitano, Riccardo Franzò, Giorgia Gucciardi, Pietro Giuseppe Vasi, Cirino Priolo, Francesco Iacona, Fabio Irrera, Alessia |
author_facet | Lo Faro, Maria Josè D’Andrea, Cristiano Messina, Elena Fazio, Barbara Musumeci, Paolo Reitano, Riccardo Franzò, Giorgia Gucciardi, Pietro Giuseppe Vasi, Cirino Priolo, Francesco Iacona, Fabio Irrera, Alessia |
author_sort | Lo Faro, Maria Josè |
collection | PubMed |
description | The realization of an innovative hybrid light source operating at room temperature, obtained by embedding a carbon nanotube (CNT) dispersion inside a Si nanowire (NW) array is reported. The NW/CNT system exhibits a peculiar photoluminescence spectrum, consisting of a wide peak, mainly observed in the visible range, due to quantum confined Si NWs, and of several narrower IR peaks, due to the different CNT chiralities present in the dispersion. The detailed study of the optical properties of the hybrid system evidences that the ratio between the intensity of the visible and the IR emissions can be varied within a wide range by changing the excitation wavelength or the CNT concentration; the conditions leading to the prevalence of one signal with respect to the other are identified. The multiplicity of emission spectra obtainable from this composite material opens new perspectives for Si nanostructures as active medium in light sources for Si photonics applications. |
format | Online Article Text |
id | pubmed-4655395 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46553952015-11-27 Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source Lo Faro, Maria Josè D’Andrea, Cristiano Messina, Elena Fazio, Barbara Musumeci, Paolo Reitano, Riccardo Franzò, Giorgia Gucciardi, Pietro Giuseppe Vasi, Cirino Priolo, Francesco Iacona, Fabio Irrera, Alessia Sci Rep Article The realization of an innovative hybrid light source operating at room temperature, obtained by embedding a carbon nanotube (CNT) dispersion inside a Si nanowire (NW) array is reported. The NW/CNT system exhibits a peculiar photoluminescence spectrum, consisting of a wide peak, mainly observed in the visible range, due to quantum confined Si NWs, and of several narrower IR peaks, due to the different CNT chiralities present in the dispersion. The detailed study of the optical properties of the hybrid system evidences that the ratio between the intensity of the visible and the IR emissions can be varied within a wide range by changing the excitation wavelength or the CNT concentration; the conditions leading to the prevalence of one signal with respect to the other are identified. The multiplicity of emission spectra obtainable from this composite material opens new perspectives for Si nanostructures as active medium in light sources for Si photonics applications. Nature Publishing Group 2015-11-23 /pmc/articles/PMC4655395/ /pubmed/26592198 http://dx.doi.org/10.1038/srep16753 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 Lo Faro, Maria Josè D’Andrea, Cristiano Messina, Elena Fazio, Barbara Musumeci, Paolo Reitano, Riccardo Franzò, Giorgia Gucciardi, Pietro Giuseppe Vasi, Cirino Priolo, Francesco Iacona, Fabio Irrera, Alessia Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
title | Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
title_full | Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
title_fullStr | Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
title_full_unstemmed | Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
title_short | Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
title_sort | silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4655395/ https://www.ncbi.nlm.nih.gov/pubmed/26592198 http://dx.doi.org/10.1038/srep16753 |
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