| Literature DB >> 24452852 |
Huan Liu1, Min Li, Oleksandr Voznyy, Long Hu, Qiuyun Fu, Dongxiang Zhou, Zhe Xia, Edward H Sargent, Jiang Tang.
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.Entities:
Keywords: colloidal quantum dots; gas sensors; lead sulfide; nitrogen dioxide
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Year: 2014 PMID： 24452852 DOI： 10.1002/adma.201304366
Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849