ReS2‐Based Field‐Effect Transistors and Photodetectors

By E. Zhang, Yibo Jin, Xiang Yuan, Weiyi Wang, Cheng Zhang, Lei Tang, Shanshan Liu, P. Zhou, Weida Hu, F. Xiu. 2015

330 citations recorded by the source corpus.

Atomically thin 2D layered transition metal dichalcogenides (TMDs) have been extensively studied in recent years because of their appealing electrical and optical properties. Here, the fabrication of ReS2 field‐effect transistors is reported via the encapsulation of ReS2 nanosheets in a high‐κ Al2O3 dielectric environment. Low‐temperature transport measurements allow to observe a direct metal‐to‐insulator transition originating from strong electron–electron interactions. Remarkably, the photodetectors based on ReS2 exhibit gate‐tunable photoresponsivity up to 16.14 A W−1 and external quantum efficiency reaching 3168%, showing a competitive device performance to those reported in graphene, MoSe2, GaS, and GaSe‐based photodetectors. This study unambiguously distinguishes ReS2 as a new candidate for future applications in electronics and optoelectronics.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/7bc9f9264814797e2f38ed9a66bb733f82fbbc69

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