Photodetectors based on two-dimensional materials and organic thin-film heterojunctions*

Project supported by National Science Funds for Creative Research Groups of China (Grant No. 61421002).

Han Jiayue1, Wang Jun1, 2, †
       

(a) Shift of the Dirac point Vd as a function of the illuminating power density on the photodetector.[85] (b) The photocurrent of the photodetector under near-infrared illumination at VG = −15 V, VDS = 0.05 V.[85] (c) The energy band diagram of the graphene/PCBM/perovskite heterojunction photodetectors.[87] (d) The time-dependent measurement of the device with different PCBM concentrations at the wavelength of 500 nm.[87] (e) 3D schematic view of perovskite/MoS2 BHJ on a reduced graphene oxidelayer.[86] (f) Absorption spectra and SEM image of device.[86]