A 2D semiconductor-self-assembled monolayer photoswitchable diode.

Margapoti, Emanuela; Li, Juan; Ceylan, Özlem; Seifert, Max; Nisic, Filippo; Anh, Tuan Le; Meggendorfer, Felix; Dragonetti, Claudia et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

A switchable diode in a 2D semiconductor-molecular junction heterostructure is reported. MoS2 is exfoliated on top of a monolayer of azobenzene-substituted thiols on gold. Photoisomerization of the azobenzenes results in switching between a rectifier with rectifying ratios of 10(4) and a conductive state, as revealed by conducting atomic force microscopy.