| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
High Density Array of Silver Accordion Nanostructure for High Sensitive SERS Substrate |
| 초록 |
We develop a novel method for a high density array of silver accordion nanorods by using self-assembly of block copolymer. First, polystyrene-block-poly (methyl methacrylate) copolymer (PS-b-PMMA) with 30nm domain space was confined inside cylindrical aluminum oxide (AAO) template modified by random brush of PS-ran-PMMA copolymer. Vertically oriented silver accordions with 15nm gap distance were formed for a large area(cm2) after removing AAO template, and selectively deposited 6nm thickness silver on PS domain. FDTD simulation showed larger field intensity enhancement than just silver deposited PS rods. We checked Raman signal of absorbed molecules on the substrate was highly enhanced for orders than reference, also 3 times than silver rods with low spatial distribution of 16.6 %. |
| 저자 |
김무성, 배두식, 문정호, 전금혜, 박승규, 박범진, 노준석, 김진곤
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| 소속 |
POSTECH |
| 키워드 |
Block copolymer; Self-assembly; AAO; plasmonic; SERS
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| E-Mail |
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