A Broadband Fluorographene Photodetector. Issue 22 (4th April 2017)
- Record Type:
- Journal Article
- Title:
- A Broadband Fluorographene Photodetector. Issue 22 (4th April 2017)
- Main Title:
- A Broadband Fluorographene Photodetector
- Authors:
- Du, Sichao
Lu, Wei
Ali, Ayaz
Zhao, Pei
Shehzad, Khurram
Guo, Hongwei
Ma, Lingling
Liu, Xuemei
Pi, Xiaodong
Wang, Peng
Fang, Hehai
Xu, Zhen
Gao, Chao
Dan, Yaping
Tan, Pingheng
Wang, Hongtao
Lin, Cheng‐Te
Yang, Jianyi
Dong, Shurong
Cheng, Zhiyuan
Li, Erping
Yin, Wenyan
Luo, Jikui
Yu, Bin
Hasan, Tawfique
Xu, Yang
Hu, Weida
Duan, Xiangfeng - Abstract:
- Abstract : High‐performance photodetectors operating over a broad wavelength range from ultraviolet, visible, to infrared are of scientific and technological importance for a wide range of applications. Here, a photodetector based on van der Waals heterostructures of graphene and its fluorine‐functionalized derivative is presented. It consistently shows broadband photoresponse from the ultraviolet (255 nm) to the mid‐infrared (4.3 µm) wavelengths, with three orders of magnitude enhanced responsivity compared to pristine graphene photodetectors. The broadband photodetection is attributed to the synergistic effects of the spatial nonuniform collective quantum confinement of sp 2 domains, and the trapping of photoexcited charge carriers in the localized states in sp 3 domains. Tunable photoresponse is achieved by controlling the nature of sp 3 sites and the size and fraction of sp 3 /sp 2 domains. In addition, the photoresponse due to the different photoexcited‐charge‐carrier trapping times in sp 2 and sp 3 nanodomains is determined. The proposed scheme paves the way toward implementing high‐performance broadband graphene‐based photodetectors. Abstract : A photodetector based on van der Waals heterostructures of graphene and its fluorine‐functionalized derivative is presented. The photodetector consistently shows broadband photoresponse in the wavelength range from 255 nm to 4.3 µm, which is attributed to the synergistic effects of the spatial nonuniform collective quantumAbstract : High‐performance photodetectors operating over a broad wavelength range from ultraviolet, visible, to infrared are of scientific and technological importance for a wide range of applications. Here, a photodetector based on van der Waals heterostructures of graphene and its fluorine‐functionalized derivative is presented. It consistently shows broadband photoresponse from the ultraviolet (255 nm) to the mid‐infrared (4.3 µm) wavelengths, with three orders of magnitude enhanced responsivity compared to pristine graphene photodetectors. The broadband photodetection is attributed to the synergistic effects of the spatial nonuniform collective quantum confinement of sp 2 domains, and the trapping of photoexcited charge carriers in the localized states in sp 3 domains. Tunable photoresponse is achieved by controlling the nature of sp 3 sites and the size and fraction of sp 3 /sp 2 domains. In addition, the photoresponse due to the different photoexcited‐charge‐carrier trapping times in sp 2 and sp 3 nanodomains is determined. The proposed scheme paves the way toward implementing high‐performance broadband graphene‐based photodetectors. Abstract : A photodetector based on van der Waals heterostructures of graphene and its fluorine‐functionalized derivative is presented. The photodetector consistently shows broadband photoresponse in the wavelength range from 255 nm to 4.3 µm, which is attributed to the synergistic effects of the spatial nonuniform collective quantum confinement, and the trapping of photoexcited charge carriers in the localized states. … (more)
- Is Part Of:
- Advanced materials. Volume 29:Issue 22(2017)
- Journal:
- Advanced materials
- Issue:
- Volume 29:Issue 22(2017)
- Issue Display:
- Volume 29, Issue 22 (2017)
- Year:
- 2017
- Volume:
- 29
- Issue:
- 22
- Issue Sort Value:
- 2017-0029-0022-0000
- Page Start:
- n/a
- Page End:
- n/a
- Publication Date:
- 2017-04-04
- Subjects:
- broadband -- fluorographene -- mid‐infrared -- photodetectors -- ultraviolet
Materials -- Periodicals
Chemical vapor deposition -- Periodicals
620.11 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-4095 ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/adma.201700463 ↗
- Languages:
- English
- ISSNs:
- 0935-9648
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 0696.897800
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 2872.xml