Infrared photodetectors based on CVD-grown graphene and PbS quantum dots with ultrahigh responsivity.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22936561.
- Also identified by DOI 10.1002/adma.201202220.
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Abstract
Infrared photodetectors based on single-layer CVD-grown graphene and PbS quantum dots, which are fabricated by solution processing, show ultrahigh responsivities of up to 10(7) A/W under infrared light illumination. The devices fabricated on flexible plastic substrates have excellent bending stability. The photoresponse is attributed to the field-effect doping in graphene films induced by negative charges generated in the quantum dots.
Medical subject headings
- Graphite
- Infrared Rays
- Lead
- Quantum Dots
- Sulfides