High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide

Abstract One critical factor for bolometer sensitivity is efficient electromagnetic heating of thermistor materials, which plasmonic nanogap structures can provide through the electric field enhancement. In this report, using finite element method simulation, electromagnetic heating of nanorod dimer...

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Autores principales:	Dukhyung Lee, Dasom Kim, Dai-Sik Kim, Hyeong-Ryeol Park, Changhee Sohn, Seon Namgung, Kunook Chung, Young Chul Jun, Dong Kyun Kim, Hyuck Choo, Young-Geun Roh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e14be9b975fc41e8a223302a3387c0c2
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spelling	oai:doaj.org-article:e14be9b975fc41e8a223302a3387c0c22021-12-02T16:35:28ZHigh sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide10.1038/s41598-021-95429-12045-2322https://doaj.org/article/e14be9b975fc41e8a223302a3387c0c22021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95429-1https://doaj.org/toc/2045-2322Abstract One critical factor for bolometer sensitivity is efficient electromagnetic heating of thermistor materials, which plasmonic nanogap structures can provide through the electric field enhancement. In this report, using finite element method simulation, electromagnetic heating of nanorod dimer antennas with a nanogap filled with vanadium dioxide (VO2) was studied for long-wavelength infrared detection. Because VO2 is a thermistor material, the electrical resistance between the two dimer ends depends on the dimer’s temperature. The simulation results show that, due to the high heating ability of the nanogap, the temperature rise is several times higher than expected from the areal coverage. This excellent performance is observed over various nanorod lengths and gap widths, ensuring wavelength tunability and ultrafast operating speed, thereby making the dimer structures a promising candidate for high sensitivity bolometers.Dukhyung LeeDasom KimDai-Sik KimHyeong-Ryeol ParkChanghee SohnSeon NamgungKunook ChungYoung Chul JunDong Kyun KimHyuck ChooYoung-Geun RohNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dukhyung Lee Dasom Kim Dai-Sik Kim Hyeong-Ryeol Park Changhee Sohn Seon Namgung Kunook Chung Young Chul Jun Dong Kyun Kim Hyuck Choo Young-Geun Roh High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
description	Abstract One critical factor for bolometer sensitivity is efficient electromagnetic heating of thermistor materials, which plasmonic nanogap structures can provide through the electric field enhancement. In this report, using finite element method simulation, electromagnetic heating of nanorod dimer antennas with a nanogap filled with vanadium dioxide (VO2) was studied for long-wavelength infrared detection. Because VO2 is a thermistor material, the electrical resistance between the two dimer ends depends on the dimer’s temperature. The simulation results show that, due to the high heating ability of the nanogap, the temperature rise is several times higher than expected from the areal coverage. This excellent performance is observed over various nanorod lengths and gap widths, ensuring wavelength tunability and ultrafast operating speed, thereby making the dimer structures a promising candidate for high sensitivity bolometers.
format	article
author	Dukhyung Lee Dasom Kim Dai-Sik Kim Hyeong-Ryeol Park Changhee Sohn Seon Namgung Kunook Chung Young Chul Jun Dong Kyun Kim Hyuck Choo Young-Geun Roh
author_facet	Dukhyung Lee Dasom Kim Dai-Sik Kim Hyeong-Ryeol Park Changhee Sohn Seon Namgung Kunook Chung Young Chul Jun Dong Kyun Kim Hyuck Choo Young-Geun Roh
author_sort	Dukhyung Lee
title	High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
title_short	High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
title_full	High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
title_fullStr	High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
title_full_unstemmed	High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
title_sort	high sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e14be9b975fc41e8a223302a3387c0c2
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High sensitivity bolometers based on metal nanoantenna dimers with a nanogap filled with vanadium dioxide

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