Journal
NANOTECHNOLOGY
Volume 30, Issue 25, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab0608
Keywords
photodetector; near infrared; charge transfer complex; graphene; photogating
Funding
- Key Research Program of Frontier Sciences of CAS [QYZDB-SSW-SYS031]
- NSFC [21673058, 21822502]
- Strategic Priority Research Program of CAS [XDB30000000]
Ask authors/readers for more resources
Photodetectors have widespread applications in fields including telecommunications, thermal imaging and bio-medical imaging. The photogating effect, arising from charge trapping at defects and/or interfaces, can have extremely high photoelectric gain which can be a benefit to high-sensitivity room temperature photodetection. Here, we introduce thin layered organic charge transfer complexes (CPXs) integrated on graphene transistors for the development of hybrid phototransistors with ultra-high photoresponsivity of similar to 10(6) A W-1 in the near infrared (NIR) region at room temperature. Our study has demonstrated a graphene-organic CPX with a broadband photoresponse ranging from the visible to the NIR region. The high photoelectric gain was from the photogating effect at the graphene/CPX interface. In addition, the photoresponse properties of the graphene-organic CPX can be regulated by electrical gating of graphene.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available