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The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices

Hybrid nanostructures have a great potential to improve the overall properties of photonic devices. In the present study, silver nanoparticles (AgNPs) were infiltrated into nanostructured porous silicon (PSi) layers, aiming at enhancing the optoelectronic performance of Si-based devices. More specif...

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Detalles Bibliográficos
Autores principales: Ramadan, Rehab, Martín-Palma, Raúl J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8778978/
https://www.ncbi.nlm.nih.gov/pubmed/35055288
http://dx.doi.org/10.3390/nano12020271
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author Ramadan, Rehab
Martín-Palma, Raúl J.
author_facet Ramadan, Rehab
Martín-Palma, Raúl J.
author_sort Ramadan, Rehab
collection PubMed
description Hybrid nanostructures have a great potential to improve the overall properties of photonic devices. In the present study, silver nanoparticles (AgNPs) were infiltrated into nanostructured porous silicon (PSi) layers, aiming at enhancing the optoelectronic performance of Si-based devices. More specifically, Schottky diodes with three different configurations were fabricated, using Al/Si/Au as the basic structure. This structure was modified by adding PSi and PSi + AgNPs layers. Their characteristic electrical parameters were accurately determined by fitting the current–voltage curves to the non-ideal diode equation. Furthermore, electrochemical impedance spectroscopy was used to determine the electrical parameters of the diodes in a wide frequency range by fitting the Nyquist plots to the appropriate equivalent circuit model. The experimental results show a remarkable enhancement in electrical conduction after the incorporation of metallic nanoparticles. Moreover, the spectral photoresponse was examined for various devices. An approximately 10-fold increment in photoresponse was observed after the addition of Ag nanoparticles to the porous structures.
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spelling pubmed-87789782022-01-22 The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices Ramadan, Rehab Martín-Palma, Raúl J. Nanomaterials (Basel) Article Hybrid nanostructures have a great potential to improve the overall properties of photonic devices. In the present study, silver nanoparticles (AgNPs) were infiltrated into nanostructured porous silicon (PSi) layers, aiming at enhancing the optoelectronic performance of Si-based devices. More specifically, Schottky diodes with three different configurations were fabricated, using Al/Si/Au as the basic structure. This structure was modified by adding PSi and PSi + AgNPs layers. Their characteristic electrical parameters were accurately determined by fitting the current–voltage curves to the non-ideal diode equation. Furthermore, electrochemical impedance spectroscopy was used to determine the electrical parameters of the diodes in a wide frequency range by fitting the Nyquist plots to the appropriate equivalent circuit model. The experimental results show a remarkable enhancement in electrical conduction after the incorporation of metallic nanoparticles. Moreover, the spectral photoresponse was examined for various devices. An approximately 10-fold increment in photoresponse was observed after the addition of Ag nanoparticles to the porous structures. MDPI 2022-01-15 /pmc/articles/PMC8778978/ /pubmed/35055288 http://dx.doi.org/10.3390/nano12020271 Text en © 2022 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 Article
Ramadan, Rehab
Martín-Palma, Raúl J.
The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices
title The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices
title_full The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices
title_fullStr The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices
title_full_unstemmed The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices
title_short The Infiltration of Silver Nanoparticles into Porous Silicon for Improving the Performance of Photonic Devices
title_sort infiltration of silver nanoparticles into porous silicon for improving the performance of photonic devices
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8778978/
https://www.ncbi.nlm.nih.gov/pubmed/35055288
http://dx.doi.org/10.3390/nano12020271
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