| 1-Octanethiol이 코팅된 나노 구리 분말을 이용한 나노 잉크의 분산도에 대한 연구 |
| 조단이, 백종환1, 박중학2, 이선영 |
한양대학교 재료공학과
2(주)나노 기술 |
| Investigation of Dispersion Stability of Conductive Nano Ink Using 1-Octanethiol Coated Copper Nano Powders |
| Danee Cho, Jong-Hwan Baik1, Joong-Hark Park2, Caroline Sunyong Lee |
Department of Materials Engineering, Hanyang University
1Lean on Tech.
2Nano Technology Inc. |
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| ABSTRACT |
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Copper nano particles have been considered as the materials for conductive ink due to its good thermal, electrical conductivity and low cost. However, copper nanoparticles oxidize easily, decreasing dispersion stability and electrical conductivity. Therefore, it is important to develop a method to minimize oxidation of copper nano particles to improve its dispersion stability property in copper nano ink. In this study, copper nano particles were coated with 1-Octanethiol VSAM(Vaporized Self Assembled Multilayers) to prevent oxidation and coated copper powders were dispersed in conductive ink successfully by studying its relationship of different chain length of solvents to 1-Octanethiol coating layer to fabricate nano ink. Various alcohol solvents, such as 1-Hexanol, 1-Octanol, and 1-Decanol were used. The coating layer was observed using FESEM and TEM. Furthermore, dispersion of copper nano particles in nano inks, was characterized using Turbiscan analyzer, viscometer, and contact angle measurement tool. |
| Key words:
1-Octanethiol, Cu, Dispersion, Conductive ink, Inkjet printing |
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