Single-layer MoS2 phototransistors.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22165908.
- Also identified by DOI 10.1021/nn2024557.
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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.
Medical subject headings
- Molybdenum
- Nanostructures
- Oxides
- Transistors, Electronic