| 학회 |
한국재료학회 |
| 학술대회 |
2015년 봄 (05/14 ~ 05/15, 구미코) |
| 권호 |
21권 1호 |
| 발표분야 |
B. 바이오/화학 재료 |
| 제목 |
Crystalline Structure-Tunable, Surface Oxidation- Suppressed Ni Nanoparticles: Toward the Potential for Printable Magnetic Colloidal Fluids Compatible with Flexible Substrates |
| 초록 |
In this study, we suggest the chemical methodology that allows for the facile controllability of phase transformation between face-centered cubic and hexagonal close-packed structure for Ni nanoparticles with a 0.4 - 2 nm thick shallow surface oxide layer, resulting in a maximum saturation magnetization of 33.2 emu/g. As a first proof-of-concept of the potential for flexible, printed magnetic devices on cost-effective polyethylene terephthalate (PET) and paper substrates, it is demonstrated that the resulting Ni nanoparticles, prepared in the form of magnetic fluids, are transformed into bulk-like patterned Ni architectures by an air-brush printing and an instant photonic annealing in a timescale of 10-3sec, exhibiting the highly flexible properties under harsh conditions of 10,000 times repeated bending tests. |
| 저자 |
Yejin Jo, Sang-Jin Oh, Sun Sook Lee, Yeong-Hui Seo, Ju Young Kim, Beyong-Hwan Ryu, Sunho Jeong, Youngmin Choi
|
| 소속 |
한국화학(연) |
| 키워드 |
Ni nanoparticle; synthesis; flexible substrate; photonic annealing
|
| E-Mail |
|
