title: Single-layer MoS2 phototransistors.
abstract: A new phototransistor based on the mechanically exfoliated single-layer MoS(2) nanosheet is fabricated, and its light-induced electric properties are investigated in detail. Photocurrent generated from the phototransistor is solely determined by the illuminated optical power at a constant drain or gate voltage. The switching behavior of photocurrent generation and annihilation can be completely finished within ca. 50 ms, and it shows good stability. Especially, the single-layer MoS(2) phototransistor exhibits a better photoresponsivity as compared with the graphene-based device. The unique characteristics of incident-light control, prompt photoswitching, and good photoresponsivity from the MoS(2) phototransistor pave an avenue to develop the single-layer semiconducting materials for multifunctional optoelectronic device applications in the future.
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798.
authors.forename: Zongyou
authors.initials: Z
authors.lastname: Yin
authors.forename: Hai
authors.initials: H
authors.lastname: Li
authors.forename: Hong
authors.initials: H
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Jiang
authors.forename: Yumeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Yinghui
authors.initials: Y
authors.lastname: Sun
authors.forename: Gang
authors.initials: G
authors.lastname: Lu
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhang
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Chen
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008982:Molybdenum / Q000737:chemistry* / Q000528:radiation effects; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D010316:Particle Size; D014173:Transistors, Electronic
chemical_list: D010087:Oxides; C082290:molybdenum trioxide; D008982:Molybdenum