Fig. 2: Rectifying characteristics and energy band alignment of molecular heterojunction.
From: Tunable rectification in a molecular heterojunction with two-dimensional semiconductors
a Representative I-V characteristics of the junctions without OPT2 or TMDs (black dotted line), OPT2/1L-WSe2 (cyan solid circle), and OPT2/1L-MoS2 (red solid circle) junctions. b Contour maps of transport I for OPT2/1L-WSe2 (left) and OPT2/1L-MoS2 (right) junctions according to V and number of junctions. c Statistical histograms of RR for OPT2/1L-MoS2 and OPT2/1L-WSe2 junctions. The line curves are fitting results from Gaussian function. Note the total numbers of OPT2/1L-WSe2 and OPT2/1L-MoS2 junctions are 200 and 1100, respectively. d Interfacial energy band alignments for Au/OPT2/1L-MoS2/Au junction at V = 0 V, V = 1.0 V, and V = −1.0 V. Note that the Eg of 1L-MoS2 is set to ~1.8 eV.
