Understanding charge transfer at PbS-decorated graphene surfaces toward a tunable photosensor.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22505476.
- Also identified by DOI 10.1002/adma.201104597.
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Abstract
An intrinsic mechanism of photoinduced hole transfer reactions occurring at the grapheme-PbS interface is described with the purpose of building a tunable photosensor with a responsivity of more than 10(3) A W(-1) . It is remarkable that rational utilization of this finding also realizes symmetric, opposing photoswitching effects, which are effectively mirror images, in a single pristine graphene device. These results highlight the vital importance of interface modification as a powerful tool for creating future ultrasensitive optoelectronic devices.
Medical subject headings
- Graphite
- Lead
- Sulfides