title: The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets.
abstract: Ultrathin two-dimensional nanosheets of layered transition metal dichalcogenides (TMDs) are fundamentally and technologically intriguing. In contrast to the graphene sheet, they are chemically versatile. Mono- or few-layered TMDs - obtained either through exfoliation of bulk materials or bottom-up syntheses - are direct-gap semiconductors whose bandgap energy, as well as carrier type (n- or p-type), varies between compounds depending on their composition, structure and dimensionality. In this Review, we describe how the tunable electronic structure of TMDs makes them attractive for a variety of applications. They have been investigated as chemically active electrocatalysts for hydrogen evolution and hydrosulfurization, as well as electrically active materials in opto-electronics. Their morphologies and properties are also useful for energy storage applications such as electrodes for Li-ion batteries and supercapacitors.
authors.affiliation: Materials Science and Engineering, Rutgers University, 607 Taylor Road, Piscataway, New Jersey 08854, USA. manish1@rci.rutgers.edu
authors.forename: Manish
authors.initials: M
authors.lastname: Chhowalla
authors.forename: Hyeon Suk
authors.initials: HS
authors.lastname: Shin
authors.forename: Goki
authors.initials: G
authors.lastname: Eda
authors.forename: Lain-Jong
authors.initials: LJ
authors.lastname: Li
authors.forename: Kian Ping
authors.initials: KP
authors.lastname: Loh
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang