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All-nanoparticle layer-by-layer coatings for Mid-IR on-chip gas sensing.

Authors :
Al Husseini D
Zhou J
Willhelm D
Hastings T
Day GS
Zhou HC
Coté GL
Qian X
Gutierrez-Osuna R
Lin PT
Sukhishvili SA
Source :
Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2020 Nov 25; Vol. 56 (91), pp. 14283-14286. Date of Electronic Publication: 2020 Nov 01.
Publication Year :
2020

Abstract

Functionalization of optical waveguides with submicron coatings of zinc peroxide (ZnO <subscript>2</subscript> ) and silica (SiO <subscript>2</subscript> ) nanoparticles (NPs) is reported that enabled selective concentration of acetone vapors in the vicinity of the waveguide, boosting the sensitivity of a mid infrared (MIR) on-chip detector. Controlled thickness was achieved by introducing precise control of the substrate withdrawal speed to the layer-by-layer (LbL) deposition technique.

Details

Language :
English
ISSN :
1364-548X
Volume :
56
Issue :
91
Database :
MEDLINE
Journal :
Chemical communications (Cambridge, England)
Publication Type :
Academic Journal
Accession number :
33130831
Full Text :
https://doi.org/10.1039/d0cc05513a