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Graphene-Black Phosphorus Printed Photodetectors

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Akhavan, Shahab 
Ruocco, Alfonso 
Soavi, Giancarlo 
Taheri, Amin 
Mignuzzi, Sandro 

Abstract

jats:titleAbstract</jats:title> jats:pLayered materials (LMs) produced by liquid phase exfoliation (LPE) can be used as building blocks for optoelectronic applications. However, when compared with mechanically exfoliated flakes, or films prepared by chemical vapor deposition (CVD), LPE-based printed optoelectronic devices are limited by mobility, defects and trap states. Here, we present a scalable fabrication technique combining CVD with LPE LMs to overcome such limitations. We use black phosphorus (BP) inks, inkjet-printed on graphene on Si/SiO2, patterned by inkjet printing based lithography, and source and drain electrodes printed with an Ag ink, to prepare photodetectors (PDs). These have an external responsivity (Rext)$\sim337A/Wat488nm,andoperatefromvisible(\sim488nm)toshortwaveinfrared(\sim2.7\mum,R{ext}\sim48mA/W).WealsousethisapproachtofabricateflexiblePDsonpolyesterfabric,oneofthemostcommonusedintextiles,achievingR{ext}\sim$6mA/W at 488nm for an operating voltage of 1V. Thus, our combination of scalable CVD and LPE techniques via inkjet printing is promising for wearable and flexible applications</jats:p>

Description

Keywords

40 Engineering, 51 Physical Sciences, 4016 Materials Engineering, 4018 Nanotechnology, 5104 Condensed Matter Physics

Journal Title

2D Materials

Conference Name

Journal ISSN

2053-1583
2053-1583

Volume Title

Publisher

IOP Publishing
Sponsorship
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (881603)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (785219)
Engineering and Physical Sciences Research Council (EP/K017144/1)
Engineering and Physical Sciences Research Council (EP/K01711X/1)
European Commission Horizon 2020 (H2020) ERC (206409)
European Commission Horizon 2020 (H2020) Societal Challenges (732344)
EPSRC (via University of Manchester) (R119256)
Engineering and Physical Sciences Research Council (EP/L016087/1)
EPSRC (via University of Nottingham) (EP/V000055/1 R00070)
EPSRC (via University of Manchester) (EP/P00119X/1)
European Research Council (319277)
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