Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/8874
Title: | Colloidal films of SiO2 in elastomeric polyacrylates by photopolymerization: A strain sensor application | Authors: | İnci, Ezgi Topçu, Gökhan Demir, Mustafa Muammer |
Keywords: | Colloidal film Colorimetric sensor Langmuir Blodgett Strain sensor |
Publisher: | Elsevier | Abstract: | Thin layer SiO2 colloidal films show angle-dependent coloration (iridescence) based on constructive interference, rather than absorption, without the existence of pigments. The transfer of thin layered colloidal film into a transparent elastomeric matrix maintaining its color may allow the fabrication of colorimetric strain sensors. In this study, trilayer SiO2 colloidal films were prepared by Langmuir-Blodgett deposition using a binary solvent system (chloroform/methanol) and this structure is successfully transferred into poly(ethylene glycol) phenyl ether acrylate elastomer via lateral capillary force. The resulting composite films exhibit iridescence depending on the particle size, therefore, film thickness as similar in mere colloidal films with a slight difference due to change in efficient refractive index (neff). Uniaxial extension of the composite film up to 50 % strain causes a remarkable linear shift in reflection signal from 568 to 496 nm. The change in thickness of the composite film accordingly intercolloidal distance normal to the application of mechanical stretching causes variation of the reflection of light. | URI: | https://doi.org/10.1016/j.snb.2019.127452 https://hdl.handle.net/11147/8874 |
ISSN: | 0925-4005 |
Appears in Collections: | Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Files in This Item:
File | Size | Format | |
---|---|---|---|
1-s2.0-S092540051931651X-main.pdf | 2.04 MB | Adobe PDF | View/Open |
CORE Recommender
SCOPUSTM
Citations
20
checked on Nov 1, 2024
WEB OF SCIENCETM
Citations
18
checked on Oct 26, 2024
Page view(s)
2,954
checked on Nov 4, 2024
Download(s)
176
checked on Nov 4, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.