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2D Organic–Inorganic Hybrid Thin Films for Flexible UV–Visible Photodetectors
Author(s) -
Velusamy Dhinesh Babu,
Haque Md. Azimul,
Parida Manas R.,
Zhang Fan,
Wu Tom,
Mohammed Omar F.,
Alshareef Husam N.
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201605554
Subject(s) - materials science , photodetection , photodetector , responsivity , optoelectronics , femtosecond , thin film , hybrid material , substrate (aquarium) , monolayer , visible spectrum , optics , nanotechnology , laser , oceanography , physics , geology
Flexible 2D inorganic MoS 2 and organic g‐C 3 N 4 hybrid thin film photodetectors with tunable composition and photodetection properties are developed using simple solution processing. The hybrid films fabricated on paper substrate show broadband photodetection suitable for both UV and visible light with good responsivity, detectivity, and reliable and rapid photoswitching characteristics comparable to monolayer devices. This excellent performance is retained even after the films are severely deformed at a bending radius of ≈2 mm for hundreds of cycles. The detailed charge transfer and separation processes at the interface between the 2D materials in the hybrid films are confirmed by femtosecond transient absorption spectroscopy with broadband capability.