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Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors

We present a proof of concept for tunable plasmon resonance frequencies in a core shell nano-architectured hybrid metal-semiconductor multilayer structure, with Ag as the active shell and ITO as the dielectric modulation media. Our method relies on the collective change in the dielectric function wi...

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Detalles Bibliográficos
Autores principales: Khosroabadi, Akram A., Gangopadhyay, Palash, Hernandez, Steven, Kim, Kyungjo, Peyghambarian, Nasser, Norwood, Robert A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455507/
https://www.ncbi.nlm.nih.gov/pubmed/28793489
http://dx.doi.org/10.3390/ma8085028
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author Khosroabadi, Akram A.
Gangopadhyay, Palash
Hernandez, Steven
Kim, Kyungjo
Peyghambarian, Nasser
Norwood, Robert A.
author_facet Khosroabadi, Akram A.
Gangopadhyay, Palash
Hernandez, Steven
Kim, Kyungjo
Peyghambarian, Nasser
Norwood, Robert A.
author_sort Khosroabadi, Akram A.
collection PubMed
description We present a proof of concept for tunable plasmon resonance frequencies in a core shell nano-architectured hybrid metal-semiconductor multilayer structure, with Ag as the active shell and ITO as the dielectric modulation media. Our method relies on the collective change in the dielectric function within the metal semiconductor interface to control the surface. Here we report fabrication and optical spectroscopy studies of large-area, nanostructured, hybrid silver and indium tin oxide (ITO) structures, with feature sizes below 100 nm and a controlled surface architecture. The optical and electrical properties of these core shell electrodes, including the surface plasmon frequency, can be tuned by suitably changing the order and thickness of the dielectric layers. By varying the dimensions of the nanopillars, the surface plasmon wavelength of the nanopillar Ag can be tuned from 650 to 690 nm. Adding layers of ITO to the structure further shifts the resonance wavelength toward the IR region and, depending on the sequence and thickness of the layers within the structure, we show that such structures can be applied in sensing devices including enhancing silicon as a photodetection material.
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spelling pubmed-54555072017-07-28 Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors Khosroabadi, Akram A. Gangopadhyay, Palash Hernandez, Steven Kim, Kyungjo Peyghambarian, Nasser Norwood, Robert A. Materials (Basel) Article We present a proof of concept for tunable plasmon resonance frequencies in a core shell nano-architectured hybrid metal-semiconductor multilayer structure, with Ag as the active shell and ITO as the dielectric modulation media. Our method relies on the collective change in the dielectric function within the metal semiconductor interface to control the surface. Here we report fabrication and optical spectroscopy studies of large-area, nanostructured, hybrid silver and indium tin oxide (ITO) structures, with feature sizes below 100 nm and a controlled surface architecture. The optical and electrical properties of these core shell electrodes, including the surface plasmon frequency, can be tuned by suitably changing the order and thickness of the dielectric layers. By varying the dimensions of the nanopillars, the surface plasmon wavelength of the nanopillar Ag can be tuned from 650 to 690 nm. Adding layers of ITO to the structure further shifts the resonance wavelength toward the IR region and, depending on the sequence and thickness of the layers within the structure, we show that such structures can be applied in sensing devices including enhancing silicon as a photodetection material. MDPI 2015-08-07 /pmc/articles/PMC5455507/ /pubmed/28793489 http://dx.doi.org/10.3390/ma8085028 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Khosroabadi, Akram A.
Gangopadhyay, Palash
Hernandez, Steven
Kim, Kyungjo
Peyghambarian, Nasser
Norwood, Robert A.
Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors
title Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors
title_full Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors
title_fullStr Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors
title_full_unstemmed Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors
title_short Nanoimprinted Hybrid Metal-Semiconductor Plasmonic Multilayers with Controlled Surface Nano Architecture for Applications in NIR Detectors
title_sort nanoimprinted hybrid metal-semiconductor plasmonic multilayers with controlled surface nano architecture for applications in nir detectors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455507/
https://www.ncbi.nlm.nih.gov/pubmed/28793489
http://dx.doi.org/10.3390/ma8085028
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