Document Detail

Photo-thermoelectric and photoelectric contributions to light detection in metal-graphene-metal photodetectors.
MedLine Citation:
PMID:  24884339     Owner:  NLM     Status:  Publisher    
Graphene's high mobility and Fermi velocity, combined with its constant light absorption in the visible to far-infrared range, make it an ideal material to fabricate high-speed and ultra-broadband photodetectors. However, the precise mechanism of photodetection is still debated. Here, we report wavelength and polarization dependent measurements of metal-graphene-metal photodetectors. This allows us to quantify and control the relative contributions of both photo-thermo- and photoelectric effects, both contributing to the overall photoresponse. This paves the way for a more efficient photodetector design for ultra-fast operating speeds.
Tim J Echtermeyer; Parinita Nene; Maxim Trushin; Roman Vladislavovich Gorbachev; Anna Eiden; Silvia Milana; Zhipei Sun; John Schliemann; Elefterios Lidorikis; Konstantin S Novoselov; Andrea C Ferrari
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-6-2
Journal Detail:
Title:  Nano letters     Volume:  -     ISSN:  1530-6992     ISO Abbreviation:  Nano Lett.     Publication Date:  2014 Jun 
Date Detail:
Created Date:  2014-6-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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