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Effect of Substrates on the Dynamic Properties of Inkjet-Printed Ag Thin Films

Title
Effect of Substrates on the Dynamic Properties of Inkjet-Printed Ag Thin Films
Author
박준홍
Keywords
inkjet printing; thin-film; dynamic property; flexural wave; cantilever
Issue Date
2018-01
Publisher
MDPI
Citation
APPLIED SCIENCES-BASEL, v. 8, no. 2, Article no. 195
Abstract
The dynamic properties of inkjet-printed Ag thin films on flexible substrates were measured using flexural wave propagation. The Ag nanoparticle suspension was inkjet-printed on polyimide (PI), silicon wafer, and glass. The effects of flexible substrates on the dynamic properties of the films were investigated. Beam-shaped Ag-printed substrates were fabricated by pico-second laser pulse cutting. The wave approach was presented to analyze the vibrations of the thin film on the substrates. The Young's modulus and loss factor of the Ag thin films with the substrates were represented by the combined bending stiffness of the bilayer beam. The vibration response of the base-excited cantilever was measured using an accelerometer and laser Doppler vibrometer (LDV). Vibration transfers were analyzed to obtain dynamic characteristics of the Ag-printed bilayer beam. The substrate affects the reduction of the Ag thin film thickness during the sintering process and surface roughness of the film. The proposed method based on the wave approach allows measurement of the dynamic properties regardless of the ratio of the modulus between the thin film and substrate.
URI
https://www.mdpi.com/2076-3417/8/2/195http://repository.hanyang.ac.kr/handle/20.500.11754/116957
ISSN
2076-3417
DOI
10.3390/app8020195
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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