Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector

Photodetectors based on vertical multi-walled carbon nanotube (MWCNT) film-Si heterojunctions are realized by growing MWCNTs on n-type Si substrates with a top surface covered by Si(3)N(4) layers. Spatially resolved photocurrent measurements reveal that higher photo detection is achieved in regions...

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Detalles Bibliográficos
Autores principales: Capista, Daniele, Lozzi, Luca, Pelella, Aniello, Di Bartolomeo, Antonio, Giubileo, Filippo, Passacantando, Maurizio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9967656/
https://www.ncbi.nlm.nih.gov/pubmed/36839018
http://dx.doi.org/10.3390/nano13040650
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author Capista, Daniele
Lozzi, Luca
Pelella, Aniello
Di Bartolomeo, Antonio
Giubileo, Filippo
Passacantando, Maurizio
author_facet Capista, Daniele
Lozzi, Luca
Pelella, Aniello
Di Bartolomeo, Antonio
Giubileo, Filippo
Passacantando, Maurizio
author_sort Capista, Daniele
collection PubMed
description Photodetectors based on vertical multi-walled carbon nanotube (MWCNT) film-Si heterojunctions are realized by growing MWCNTs on n-type Si substrates with a top surface covered by Si(3)N(4) layers. Spatially resolved photocurrent measurements reveal that higher photo detection is achieved in regions with thinner MWCNT film, where nearly 100% external quantum efficiency is achieved. Hence, we propose a simple method based on the use of scotch tape with which to tune the thickness and density of as-grown MWCNT film and enhance device photo-response.
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spelling pubmed-99676562023-02-27 Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector Capista, Daniele Lozzi, Luca Pelella, Aniello Di Bartolomeo, Antonio Giubileo, Filippo Passacantando, Maurizio Nanomaterials (Basel) Communication Photodetectors based on vertical multi-walled carbon nanotube (MWCNT) film-Si heterojunctions are realized by growing MWCNTs on n-type Si substrates with a top surface covered by Si(3)N(4) layers. Spatially resolved photocurrent measurements reveal that higher photo detection is achieved in regions with thinner MWCNT film, where nearly 100% external quantum efficiency is achieved. Hence, we propose a simple method based on the use of scotch tape with which to tune the thickness and density of as-grown MWCNT film and enhance device photo-response. MDPI 2023-02-07 /pmc/articles/PMC9967656/ /pubmed/36839018 http://dx.doi.org/10.3390/nano13040650 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Capista, Daniele
Lozzi, Luca
Pelella, Aniello
Di Bartolomeo, Antonio
Giubileo, Filippo
Passacantando, Maurizio
Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector
title Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector
title_full Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector
title_fullStr Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector
title_full_unstemmed Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector
title_short Spatially Resolved Photo-Response of a Carbon Nanotube/Si Photodetector
title_sort spatially resolved photo-response of a carbon nanotube/si photodetector
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9967656/
https://www.ncbi.nlm.nih.gov/pubmed/36839018
http://dx.doi.org/10.3390/nano13040650
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