Physically flexible, rapid-response gas sensor based on colloidal quantum dot solids.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 24452852.
- Also identified by DOI 10.1002/adma.201304366.
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Abstract
A gas sensor based on PbS colloidal quantum dots (CQDs) is constructed on a paper substrate, yielding flexible, rapid-response NO₂ gas sensors, fabricated from the solution phase. The devices are highly sensitive and fully recoverable at room temperature, which is attributed to the excellent access of gas molecules to the CQD surface, realized by surface ligand removal, combined with the desirable binding energy of NO₂ with the PbS CQDs.
Medical subject headings
- Colloids
- Conductometry
- Gases
- Nanotechnology
- Nitric Oxide
- Quantum Dots
- Transducers