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Materials 2016, 9(10), 850; doi:10.3390/ma9100850

Flexural Capability of Patterned Transparent Conductive Substrate by Performing Electrical Measurements and Stress Simulations

1
Department of Mechanical Engineering, National Chung Hsing University, Taichung City 40227, Taiwan
2
iboson Technology Corporation, Chubei City 30268, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Fu Hsiang Ko
Received: 31 August 2016 / Revised: 4 October 2016 / Accepted: 14 October 2016 / Published: 19 October 2016
(This article belongs to the Special Issue Advances in Bendable and Soft Material Film)
View Full-Text   |   Download PDF [3034 KB, uploaded 19 October 2016]   |  

Abstract

The suitability of stacked thin films for next-generation display technology was analyzed based on their properties and geometrical designs to evaluate the mechanical reliability of transparent conducting thin films utilized in flexural displays. In general, the high bending stress induced by various operation conditions is a major concern regarding the mechanical reliability of indium–tin–oxide (ITO) films deposited on polyethylene terephthalate (PET) substrates; mechanical reliability is commonly used to estimate the flexibility of displays. However, the pattern effect is rarely investigated to estimate the mechanical reliability of ITO/PET films. Thus, this study examined the flexible content of patterned ITO/PET films with two different line widths by conducting bending tests and sheet resistance measurements. Moreover, a stress–strain simulation enabled by finite element analysis was performed on the patterned ITO/PET to explore the stress impact of stacked film structures under various levels of flexural load. Results show that the design of the ITO/PET film can be applied in developing mechanically reliable flexible electronics. View Full-Text
Keywords: patterned ITO/PET film; bending test; sheet resistance; bending strain; finite element analysis patterned ITO/PET film; bending test; sheet resistance; bending strain; finite element analysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lee, C.-C.; Huang, P.-C.; Wang, K.-S. Flexural Capability of Patterned Transparent Conductive Substrate by Performing Electrical Measurements and Stress Simulations. Materials 2016, 9, 850.

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