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Ag Electrode Strain Sensor Fabrication Using Laser Direct Writing Process

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Authors

Kim, Hyeonseok; Shin, Jaeho; Hong, Sukjoon; Ko, Seung Hwan

Issue Date
2015-07
Publisher
한국센서학회
Citation
센서학회지, Vol.24 No.4, pp.215-218
Abstract
As several innovative technologies for flexible electric devices are being realized, demand for in-situ strain monitoring for flexible electric devices is being emphasized. Because flexible devices are commonly influenced by substrate strain, suitable strain sensors for flexible devices are essential for the sophisticated maneuvering of flexible devices. In this study, a flexible strain sensor based on an Ag electrode is prepared on a polyimide substrate using the LDW (laser direct writing) process. In this process, first, the Ag nanoparticles are coated on the substrate and selectively sintered using a focused laser. Because of the advantages of the LDW process (such as being mask-less, using low temperatures, and having non-vacuum characteristics), the entire fabrication process has been dramatically simplified; as a final outcome, a highly reliable strain sensor has been fabricated. Using this strain sensor, various strain conditions that arise from different bending radii can be detected by measuring real-time electrical signals.
ISSN
1225-5475
URI
https://hdl.handle.net/10371/207171
DOI
https://doi.org/10.5369/JSST.2015.24.4.215
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  • College of Engineering
  • Department of Mechanical Engineering
Research Area Laser Assisted Patterning, Liquid Crystal Elastomer, Stretchable Electronics, 로보틱스, 스마트 제조, 열공학

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