상세정보
학술지
Hierarchical Micro/Nano-structured Nanoimprinting Stamp Fabrication for Superhydrophobic Application
- 저자
- 김수정, 이선인, 홍성훈
- 발행일
- 201608
- 출처
- Applied Spectroscopy Reviews, v.51 no.7-9, pp.636-645
- ISSN
- 0570-4928
- 출판사
- Taylor & Francis
- 협약과제
- 16JB1200, 가시광파장용 나노결정기반 3차원 저손실 메타소재 개발, 홍성훈
- 초록
- The hierarchical micro/nano structure of a real lotus leaf was successfully transferred to a nickel stamp, and it was used as a nanoimprinting stamp for superhydrophobic surface preparation. The hierarchical micro-bump/nano-tubule structure of the lotus leaf was transformed to a nano-wrinkled micro-bump in order to apply the nanoimprinting process and provide superhydrophobicity. Ag nanoparticles (AgNPs) were uniformly coated over the lotus leaf surface to form an electrically conducting seed layer, followed by a nickel electroplating process. A nickel stamp with a well-defined negative structure of a lotus leaf, including even nano-wrinkled microstructure, was thereby successfully fabricated. The micro/nano pattern of the lotus leaf was successfully reduplicated on a poly vinyl chloride (PVC) film by a nanoimprinting process using the nickel stamp. According to contact angle measurements, the nanoimprinted polymer films are rendered hydrophobic. Superhydrophobicity was then obtained by applying a self-assembled monolayers (SAM) coating over the nanoimprinted polymer film.
- KSP 제안 키워드
- Ag nanoparticles, Contact angle(CA), Contact angle measurements, Electrically conducting, Electroplating process, Leaf surface, Micro/nano pattern, Micro/nano structure, Nano-structured, Poly vinyl chloride(PVC), Polymer films