Application of flash-light sintering method to flexible inkjet printing using anti-oxidant copper nanoparticles

Title
Application of flash-light sintering method to flexible inkjet printing using anti-oxidant copper nanoparticles
Author
이선영
Keywords
Copper nanoparticles; Anti-oxidation; Inkjet printing; Flexible film; Flash light sintering
Issue Date
2018-06
Publisher
ELSEVIER SCIENCE SA
Citation
THIN SOLID FILMS, v. 656, Page. 61-67
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.
URI
https://www.sciencedirect.com/science/article/pii/S0040609018302967http://repository.hanyang.ac.kr/handle/20.500.11754/81089
ISSN
0040-6090
DOI
10.1016/j.tsf.2018.04.034
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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