Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8032634 | Thin Solid Films | 2018 | 7 Pages |
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 18â¯wt%. Inkjet patterns printed on a flexible polyimide film and subjected to flash-light sintering displayed excellent anti-oxidation behavior over 2â¯months. The optimal light-sintering condition was 24.7â¯J/cm2 of energy density from a 5-ms pulse, which resulted in a resistivity of 2.4â¯Ãâ¯10â7â¯Î©âm. 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yeon-Ho Son, Joon-Young Jang, Min Kyu Kang, Sunghoon Ahn, Caroline Sunyong Lee,