| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.326 |
| 발표분야 | 기능성 고분자 |
| 제목 | Fabrication of binary colloidal crystals by successive contact line movement method |
| 초록 | Assembly of submicrometer particles in two- and three-dimension colloid arrays crystals have been intensively studies over the past decade because of their potential applications in areas such as nanosphere lithography, mesoporous material and photonic crystals engineering.1 In this study, we present a new approach for fabricating binary colloidal crystals. Binary colloidal crystals consist of both large and small spheres that alternately self-organize into two- or three-dimensional ordered structures.2 In our system, the layers of large and small colloidal spheres were formed consecutively via successive contact line movement. Mono-layers of large spheres were employed as the templates for directing the growth of the mono-layer of small sphere. We could fabricate binary colloidal crystals with various structures by adjusting the volume fractions of the large and small colloidal spheres, and the diameter ratios of the small to large sphere. Figure 1. Illustration of successive contact line movement method References 1. A. D. Pris, M. D. Porter, Nano Letters, 2, 1987 (2002); S. H. Park, Y. Xia, Langmuir, 15, 266 (1999); S. John, Physical Review Letters, 58, 2486 (1987) 2. K. P. Velikov, C. G. Christova, R. Pa. A. Dullens, A. van Blaaderen, Science, 296, 106 (2002); D. Wang, H. Mohwald, Advanced Materials, 16, 244 (2004) |
| 저자 | 김문호, 박오옥 |
| 소속 | 한국과학기술원 생명화학공학과 |
| 키워드 | colloidal crystals; self assembly |
