| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 | 16권 2호, p.1195 |
| 발표분야 | 고분자 |
| 제목 | Plasmonic Silver Nanoparticle Cluster Arrays by using PS-b-P4VP Crew-cut Micelle |
| 초록 | Surface-enhanced Raman scattering (SERS) substrates have been fabricated by either bottom-up method or top-down approach. The former, for instance, particle growth in a solution, is very easy, but the uniformity of the size and the inter-particle distance become very poor, resulting inonly a few places working asthe hot spots. On the other hand, the latter based on electron-beam lithography allows one to have precise control of nano-pattern. But, the fabrication of nano particles (or patterns) with an inter-particle (or pattern) distance down to 10 nm on a large area (several cm2) is very difficult. In this study, we achieve easy fabrication of silver nanoparticle with interdistance down to 10 nm by using crew-cut type polystyrene-block-poly(4-vinylpyridine) copolymer (PS-b-P4VP)micelles. The inter-particle distance was carefully adjusted by using different block ratios and total molecular weights of PS-b-P4VP. After the micelle solution was spin-coated on Si wafer to form the monolayer of the micelles, the block copolymer was removed completely by reactive ion etching. We obtained a maximum SERS enhancement factor up to ~108 with an excellent reproducibility. |
| 저자 | 조원준, 김진곤 |
| 소속 | 포항공과대 |
| 키워드 | micelle; PS-b-P4VP; SERS |
| 원문파일 | 초록 보기 |
