2011/12/13 by Zongyou Yin, Hai Li, Hong Li +7 · 5 citations
Engineering · Materials Science · Physics and Astronomy · #2D Materials and Applications #Graphene research and applications #Nanowire Synthesis and Applications #cond-mat.mtrl-sci
paper · pdf · doi:10.1021/nn2024557
published as ACS Nano, 2012, 6(1), 74-80 · 28 pages
openalex publication_date 2011/12/13 · arxiv created 2013/10/30 · arxiv updated 2013/10/31 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29
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.