| 초록 |
In this study, we found an effect of multi-walled carbon nanotubes (MWNTs) in the alcohol-soluble metal-organic decomposition ink composed of Cu(II) formate and amino-organic ligands complexes for the printed electronics. Cu/MWNTs composites were synthesized through a facile sonication-based mixing method. Thus, the ink was coated on the various substrate by using drop-casting or screen printing method. The Cu conductive patterns were able to be fabricated on a flexible polymer substrate due to their low reducing temperature of 140 °C. After reducing the ink, it was found that the reliability and fidelity of the intended pattern were improved when the MWNTs were introduced in Cu ink. During the reducing process, the MWNTs could act as nuclei where Cu particles could be generated and hold them firmly. In the optimum MWNTs contents, the electrical resistivity did not increase significantly and the surface roughness of the film was stable. |
