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High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel

Vertically oriented graphene (VG), owing to its sharp edges, non-stacking morphology, and high surface-to-volume ratio structure, is promising as a consummate material for the application of photoelectric detection. However, owing to high defect and fast photocarrier recombination, VG-absorption-bas...

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Autores principales: Yang, Jiawei, Liu, Yudong, Ci, Haina, Zhang, Feng, Yin, Jianbo, Guan, Baolu, Peng, Hailin, Liu, Zhongfan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839469/
https://www.ncbi.nlm.nih.gov/pubmed/35161704
http://dx.doi.org/10.3390/s22030959
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author Yang, Jiawei
Liu, Yudong
Ci, Haina
Zhang, Feng
Yin, Jianbo
Guan, Baolu
Peng, Hailin
Liu, Zhongfan
author_facet Yang, Jiawei
Liu, Yudong
Ci, Haina
Zhang, Feng
Yin, Jianbo
Guan, Baolu
Peng, Hailin
Liu, Zhongfan
author_sort Yang, Jiawei
collection PubMed
description Vertically oriented graphene (VG), owing to its sharp edges, non-stacking morphology, and high surface-to-volume ratio structure, is promising as a consummate material for the application of photoelectric detection. However, owing to high defect and fast photocarrier recombination, VG-absorption-based detectors inherently suffer from poor responsivity, severely limiting their viability for light detection. Herein, we report a high-performance photodetector based on a VG/indium tin oxide (ITO) composite structure, where the VG layer serves as the light absorption layer while ITO works as the carrier conduction channel, thus achieving the broadband and high response nature of a photodetector. Under the illumination of infrared light, photoinduced carriers generated in VG could transfer to the floating ITO layer, which makes them separate and diffuse to electrodes quickly, finally realizing large photocurrent detectivity. This kind of composite structure photodetector possesses a room temperature photoresponsivity as high as ~0.7 A/W at a wavelength of 980 nm, and it still maintains an acceptable performance at temperatures as low as 87 K. In addition, a response time of 5.8 s is observed, ~10 s faster than VG photodetectors. Owing to the unique three-dimensional morphology structure of the as-prepared VG, the photoresponsivity of the VG/ITO composite photodetector also presented selectivity of incidence angles. These findings demonstrate that our novel composite structure VG device is attractive and promising in highly sensitive, fast, and broadband photodetection technology.
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spelling pubmed-88394692022-02-13 High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel Yang, Jiawei Liu, Yudong Ci, Haina Zhang, Feng Yin, Jianbo Guan, Baolu Peng, Hailin Liu, Zhongfan Sensors (Basel) Article Vertically oriented graphene (VG), owing to its sharp edges, non-stacking morphology, and high surface-to-volume ratio structure, is promising as a consummate material for the application of photoelectric detection. However, owing to high defect and fast photocarrier recombination, VG-absorption-based detectors inherently suffer from poor responsivity, severely limiting their viability for light detection. Herein, we report a high-performance photodetector based on a VG/indium tin oxide (ITO) composite structure, where the VG layer serves as the light absorption layer while ITO works as the carrier conduction channel, thus achieving the broadband and high response nature of a photodetector. Under the illumination of infrared light, photoinduced carriers generated in VG could transfer to the floating ITO layer, which makes them separate and diffuse to electrodes quickly, finally realizing large photocurrent detectivity. This kind of composite structure photodetector possesses a room temperature photoresponsivity as high as ~0.7 A/W at a wavelength of 980 nm, and it still maintains an acceptable performance at temperatures as low as 87 K. In addition, a response time of 5.8 s is observed, ~10 s faster than VG photodetectors. Owing to the unique three-dimensional morphology structure of the as-prepared VG, the photoresponsivity of the VG/ITO composite photodetector also presented selectivity of incidence angles. These findings demonstrate that our novel composite structure VG device is attractive and promising in highly sensitive, fast, and broadband photodetection technology. MDPI 2022-01-26 /pmc/articles/PMC8839469/ /pubmed/35161704 http://dx.doi.org/10.3390/s22030959 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
Yang, Jiawei
Liu, Yudong
Ci, Haina
Zhang, Feng
Yin, Jianbo
Guan, Baolu
Peng, Hailin
Liu, Zhongfan
High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel
title High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel
title_full High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel
title_fullStr High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel
title_full_unstemmed High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel
title_short High-Performance 3D Vertically Oriented Graphene Photodetector Using a Floating Indium Tin Oxide Channel
title_sort high-performance 3d vertically oriented graphene photodetector using a floating indium tin oxide channel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8839469/
https://www.ncbi.nlm.nih.gov/pubmed/35161704
http://dx.doi.org/10.3390/s22030959
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