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Published on: January 23, 2013
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Patterned Metal/Polymer Composite Film with Good Mechanical Stability and Repeatability for Flexible Electronic
Xu Zheng1, Qing Wang2, Jinjin Luan1
1Institue of Nano Engineering, College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266590, China.
Micromachines
|October 2, 2019
Summary
Fabricated patterned metal/polymer composite films using nanoimprint technology demonstrate superior mechanical stability and repeatability for flexible electronics. These films exhibit enhanced resistance to deformation and significantly improved interfacial adhesion compared to control samples.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Mechanical stability and repeatability are crucial for the practical application of metal film flexible electronic devices.
- Existing flexible electronic materials often face challenges in maintaining performance under mechanical stress.
Purpose of the Study:
- To fabricate patterned metal/polymer composite films with enhanced mechanical stability and repeatability.
- To evaluate the interfacial adhesion properties of these novel composite films.
Main Methods:
- Nanoimprint technology was utilized for fabricating patterned metal/polymer composite films.
- Cyclic tension and bending loading were applied to assess mechanical properties via resistance change (ΔR/R₀).
- The double cantilever beam method was employed to measure interfacial adhesion.
Main Results:
- Patterned metal/polymer composite films exhibited significantly lower resistance change (ΔR/R₀) and error lines in repeated experiments, indicating excellent mechanical properties and repeatability.
- The average interfacial adhesion of patterned metal/polymer composite films was found to be 2.9 and 2.2 times higher than metal films on bare polymer and metal nanowire-treated polymer substrates, respectively.
Conclusions:
- Nanoimprint fabrication yields metal/polymer composite films with superior mechanical stability and repeatability for flexible electronics.
- The enhanced interfacial adhesion is critical for the improved mechanical performance of these composite films.
