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Application of flash-light sintering method to flexible inkjet printing using anti-oxidant copper nanoparticles
- Issue Date
- Jun-2018
- Publisher
- Elsevier Sequoia
- Keywords
- Copper nanoparticles; Anti-oxidation; Inkjet printing; Flexible film; Flash light sintering
- Citation
- Thin Solid Films, v.656, pp.61 - 67
- Indexed
- SCIE
SCOPUS
- Journal Title
- Thin Solid Films
- Volume
- 656
- Start Page
- 61
- End Page
- 67
- ISSN
- 0040-6090
- Abstract
- Copper nanoparticles were protected against oxidation by coating with 1-octanethiol. The copper nano-ink was synthesized by dispersing the coated copper powder in 1-octanol solvent at a concentration of 18wt%. Inkjet patterns printed on a flexible polyimide film and subjected to flash-light sintering displayed excellent anti-oxidation behavior over 2 months. The optimal light-sintering condition was 24.7 J/cm(2) of energy density from a 5-ms pulse, which resulted in a resistivity of 2.4 x 10(-7)omega.m. After bending more than 1000 times, the resistivity of the light-sintered pattern was 1.45-times higher than that of the unbent pattern. The light-sintered pattern printed with the anti-oxidative copper nano-ink shows great promise for flexible device applications.
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Related Researcher
- Lee, Sunyong Caroline
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)