Mohammed, D.W.; Ameen, R. B.; Sierros, K. A.; Bowen, J. and Kukureka, S. N.
(2018).
|
(Accepted Manuscript)
Due to publisher licensing restrictions, this file is not available for public download until 4 November 2018 Click here to request a copy from the OU Author. |
| DOI (Digital Object Identifier) Link: | https://doi.org/10.1016/j.tsf.2017.10.047 |
|---|---|
| Google Scholar: | Look up in Google Scholar |
Abstract
Twisting monotonic and fatigue experiments were conducted on multi-layered films of Ag-alloy based indium tin oxide (ITO) deposited on polyethylene terephthalate (PET). In the twisting tests, crack development and electrical resistance were monitored in situ. Cracks initiated at an angle of 39° ± 1.7° and propagated towards the direction of the sample length. Two sets of experiments were performed; the first set of experiments was conducted to study the effect of twisting angle and temperature on the film's electromechanical performance. The other set of experiments was conducted to study the effect of temperature in the absence of cyclic twisting deformation. The change in electrical resistance increased with number of twisting cycles and twisting angle. In addition, the highest change in electrical resistance was observed for samples subjected to cyclic fatigue at 100 °C, which is attributed to crack growth and oxidation of the Ag-alloy layer. The cracks were observed to initiate not only from coating defects but also from edge defects. Development of cracks is accelerated due to the combined effects of the external repeated stress and temperature. Therefore, it is suggested that controlling temperature when using ITO/Ag-alloy/ITO thin film under mechanical stress is important for electrical device performance; temperatures in both fabrication and use should not exceed 50 °C.
| Item Type: | Journal Item | ||||||
|---|---|---|---|---|---|---|---|
| Copyright Holders: | 2017 Elsevier | ||||||
| ISSN: | 0040-6090 | ||||||
| Project Funding Details: |
|
||||||
| Keywords: | Indium tin oxide; Silver; ITO/Ag-alloy/ITO; Polymer substrate; Polyethylene terephthalate; Twisting; Flexible electronic device | ||||||
| Academic Unit/School: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation Faculty of Science, Technology, Engineering and Mathematics (STEM) |
||||||
| Research Group: | Smart Materials | ||||||
| Item ID: | 52249 | ||||||
| Depositing User: | James Bowen | ||||||
| Date Deposited: | 07 Nov 2017 16:31 | ||||||
| Last Modified: | 20 Oct 2018 08:14 | ||||||
| URI: | http://oro.open.ac.uk/id/eprint/52249 | ||||||
| Share this page: |     |
Metrics
Altmetrics from Altmetric | Citations from Dimensions |
CORE (COnnecting REpositories)
CORE (COnnecting REpositories)