Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator

Graphene plasmon resonators with the ability to support plasmonic resonances in the infrared region make them a promising platform for plasmon-enhanced spectroscopy techniques. Here we propose a resonant graphene plasmonic system for infrared spectroscopy sensing that consists of continuous graphene...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Chunchao Wen, Jie Luo, Wei Xu, Zhihong Zhu, Shiqiao Qin, Jianfa Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	acoustic graphene plasmons bilayer graphene infrared spectroscopy molecular vibrational fingerprints Biotechnology TP248.13-248.65
Acceso en línea:	https://doaj.org/article/db7dc6126fa84ccaad3122215ad3c18f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:db7dc6126fa84ccaad3122215ad3c18f
record_format	dspace
spelling	oai:doaj.org-article:db7dc6126fa84ccaad3122215ad3c18f2021-11-25T16:55:12ZEnhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator10.3390/bios111104312079-6374https://doaj.org/article/db7dc6126fa84ccaad3122215ad3c18f2021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6374/11/11/431https://doaj.org/toc/2079-6374Graphene plasmon resonators with the ability to support plasmonic resonances in the infrared region make them a promising platform for plasmon-enhanced spectroscopy techniques. Here we propose a resonant graphene plasmonic system for infrared spectroscopy sensing that consists of continuous graphene and graphene ribbons separated by a nanometric gap. Such a bilayer graphene resonator can support acoustic graphene plasmons (AGPs) that provide ultraconfined electromagnetic fields and strong field enhancement inside the nano-gap. This allows us to selectively enhance the infrared absorption of protein molecules and precisely resolve the molecular structural information by sweeping graphene Fermi energy. Compared to the conventional graphene plasmonic sensors, the proposed bilayer AGP sensor provides better sensitivity and improvement of molecular vibrational fingerprints of nanoscale analyte samples. Our work provides a novel avenue for enhanced infrared spectroscopy sensing with ultrasmall volumes of molecules.Chunchao WenJie LuoWei XuZhihong ZhuShiqiao QinJianfa ZhangMDPI AGarticleacoustic graphene plasmonsbilayer grapheneinfrared spectroscopymolecular vibrational fingerprintsBiotechnologyTP248.13-248.65ENBiosensors, Vol 11, Iss 431, p 431 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	acoustic graphene plasmons bilayer graphene infrared spectroscopy molecular vibrational fingerprints Biotechnology TP248.13-248.65
spellingShingle	acoustic graphene plasmons bilayer graphene infrared spectroscopy molecular vibrational fingerprints Biotechnology TP248.13-248.65 Chunchao Wen Jie Luo Wei Xu Zhihong Zhu Shiqiao Qin Jianfa Zhang Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator
description	Graphene plasmon resonators with the ability to support plasmonic resonances in the infrared region make them a promising platform for plasmon-enhanced spectroscopy techniques. Here we propose a resonant graphene plasmonic system for infrared spectroscopy sensing that consists of continuous graphene and graphene ribbons separated by a nanometric gap. Such a bilayer graphene resonator can support acoustic graphene plasmons (AGPs) that provide ultraconfined electromagnetic fields and strong field enhancement inside the nano-gap. This allows us to selectively enhance the infrared absorption of protein molecules and precisely resolve the molecular structural information by sweeping graphene Fermi energy. Compared to the conventional graphene plasmonic sensors, the proposed bilayer AGP sensor provides better sensitivity and improvement of molecular vibrational fingerprints of nanoscale analyte samples. Our work provides a novel avenue for enhanced infrared spectroscopy sensing with ultrasmall volumes of molecules.
format	article
author	Chunchao Wen Jie Luo Wei Xu Zhihong Zhu Shiqiao Qin Jianfa Zhang
author_facet	Chunchao Wen Jie Luo Wei Xu Zhihong Zhu Shiqiao Qin Jianfa Zhang
author_sort	Chunchao Wen
title	Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator
title_short	Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator
title_full	Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator
title_fullStr	Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator
title_full_unstemmed	Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator
title_sort	enhanced molecular infrared spectroscopy employing bilayer graphene acoustic plasmon resonator
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/db7dc6126fa84ccaad3122215ad3c18f
work_keys_str_mv	AT chunchaowen enhancedmolecularinfraredspectroscopyemployingbilayergrapheneacousticplasmonresonator AT jieluo enhancedmolecularinfraredspectroscopyemployingbilayergrapheneacousticplasmonresonator AT weixu enhancedmolecularinfraredspectroscopyemployingbilayergrapheneacousticplasmonresonator AT zhihongzhu enhancedmolecularinfraredspectroscopyemployingbilayergrapheneacousticplasmonresonator AT shiqiaoqin enhancedmolecularinfraredspectroscopyemployingbilayergrapheneacousticplasmonresonator AT jianfazhang enhancedmolecularinfraredspectroscopyemployingbilayergrapheneacousticplasmonresonator
_version_	1718412866468446208

Enhanced Molecular Infrared Spectroscopy Employing Bilayer Graphene Acoustic Plasmon Resonator

Ejemplares similares