Time-Resolved Analysis of Dielectric Mirrors for Vapor Sensing

Journal article
(Original article)


Publication Details

Author(s): Gao S, Tang X, Langner S, Osvet A, Harreiß C, Barr M, Spiecker E, Bachmann J, Brabec C, Forberich K
Journal: ACS Applied Materials and Interfaces
Publisher: American Chemical Society
Publication year: 2018
Journal issue: 10
Pages range: 36398−36406
ISSN: 1944-8244
Language: English


Abstract

Dielectric mirrors
based on bilayers of
polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SEBS)
and poly(vinyl alcohol) (PVA)-zirconium dioxide (ZrO2) nanocomposites are fabricated for vapor sensing. When exposed to specific solvent vapor, the layers of dielectric mirrors
can gradually swell and cause a red-shift of the reflection band.
Because PVA solely responds to water and SEBS is sensitive to several
different types of organic solvents, the mirrors can respond to a large variety of solvents. The dual-functional hydrophilic ZrO2
nanoparticles are introduced to not only enlarge the refractive index
contrast but also increase the permeability. Time-resolved measurements
show that mirrors with
nanoparticles have a significantly faster response than those without
nanoparticles. Moreover, the dependence on relative humidity is studied
for representative solvents, and several types of solvents are selected
to show the dependence on the solvent-polymer interaction parameters at
typical relative humidity, which allows one to predict the responsivity
and selectivity of the sensors. © 2018 American Chemical Society.


FAU Authors / FAU Editors

Bachmann, Julien Prof.
Lehrstuhl für Chemistry of thin film materials
Barr, Maissa Dr.
Lehrstuhl für Chemistry of thin film materials
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Forberich, Karen Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Gao, Shuai
Institute Materials for Electronics and Energy Technology (i-MEET)
Harreiß, Christina
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Langner, Stefan
Sonderforschungsbereich 953/2 Synthetische Kohlenstoffallotrope
Osvet, Andres Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Spiecker, Erdmann Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Tang, Xiaofeng
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


How to cite

APA:
Gao, S., Tang, X., Langner, S., Osvet, A., Harreiß, C., Barr, M.,... Forberich, K. (2018). Time-Resolved Analysis of Dielectric Mirrors for Vapor Sensing. ACS Applied Materials and Interfaces, 10, 36398−36406. https://dx.doi.org/10.1021/acsami.8b11434

MLA:
Gao, Shuai, et al. "Time-Resolved Analysis of Dielectric Mirrors for Vapor Sensing." ACS Applied Materials and Interfaces 10 (2018): 36398−36406.

BibTeX: 

Last updated on 2019-27-05 at 16:51