摘要
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.
源语言 | 英语 |
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页(从-至) | 74-80 |
页数 | 7 |
期刊 | ACS Nano |
卷 | 6 |
期 | 1 |
DOI | |
出版状态 | 已出版 - 24 1月 2012 |
已对外发布 | 是 |