Cargando…
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...
Autores principales: | , , , , , , , |
---|---|
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 |
_version_ | 1784650377218490368 |
---|---|
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. |
format | Online Article Text |
id | pubmed-8839469 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT yangjiawei highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT liuyudong highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT cihaina highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT zhangfeng highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT yinjianbo highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT guanbaolu highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT penghailin highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel AT liuzhongfan highperformance3dverticallyorientedgraphenephotodetectorusingafloatingindiumtinoxidechannel |