TiS3 transistors with tailored morphology and electrical properties.

Island, Joshua O; Barawi, Mariam; Biele, Robert; Almazán, Adrián; Clamagirand, José M; Ares, José R; Sánchez, Carlos; van der Zant, Herre S J et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

Control over the morphology of TiS3 is demonstrated by synthesizing 1D nanoribbons and 2D nanosheets. The nanosheets can be exfoliated down to a single layer. Through extensive characterization of the two morphologies, differences in the electronic properties are found and attributed to a higher density of sulphur vacancies in nanosheets, which, according to density functional theory calculations, leads to an n-type doping.