Self Assembled Patterns of Ag Using Hydrophobic and Hydrophilic Surface Characteristics of Glass

유리기판의 친수.소수 상태 변화를 이용한 자기정렬 Ag Pattern 형성 연구

  • Choo Byoung-Kwon (Department of Information Display, Kyung Hee University) ;
  • Choi Jung-Su (Department of Physics, Kyung Hee University) ;
  • Kim Gun-Jeong (Department of Information Display, Kyung Hee University) ;
  • Lee Sun-Hee (Department of Chemistry, Kyung Hee University) ;
  • Park Kyu-Cang (Department of Information Display, Kyung Hee University) ;
  • Jang Jin (Department of Information Display, Kyung Hee University)
  • 추병권 (경희대학교 정보디스플레이학과) ;
  • 최정수 (경희대학교 물리학과) ;
  • 김건정 (경희대학교 정보디스플레이학과) ;
  • 이선희 (경희대학교 화학과) ;
  • 박규창 (경희대학교 정보디스플레이학과) ;
  • 장진 (경희대학교 정보디스플레이학과)
  • Published : 2006.07.01

Abstract

Recently, the interest in lithography without photo exposure has been increased compare to the conventional photolithography in nano meter and micrometer size patterning area. We studied a self aligned dipping of Ag solution through micro contact printing (${\mu}-CP$) with octadecyltrichlorosilane (OTS) treated polydimethylsiloxane (PDMS) soft mold. The OTS monolayer on the patterned PDMS was formed by dipping it into OTS solution. We transferred the OTS monolayer from PDMS mold to the glass. The OTS monolayer changed the surface energy from hydrophilic surface to hydrophobic surface, And then we made self aligned Ag solution patterns just after dipping the substrate, using adhesion difference of Ag solution between OTS treated hydrophobic area and non-OTS treated hydrophilic area. We finally get the Ag patterns through only dip-coating after the ${\mu}-CP$ process. And we observed surface energies on the glass substrate through the contact angle measurements as time goes on.

일반적인 포토리소그래피를 사용하지 않고 마이크로미터 혹은 나노미터 단위의 패턴형성을 위한 연구가 최근 많은 연구그룹에 의해 진행되고 있다. 본 실험에서는 패턴이 형성된 polydimelthylsiloxane (PDMS) 몰드를 octadecyltrichlorosilane (OTS) 용액에 dipping 하여 PDMS 표변에 OTS 단분자막을 형성하고 micro contact printing (${\mu}-CP$) 방법으로 OTS 단분자 막을 유리기판 표면위로 전사하였다. 전사된 OTS 단분자막은 친수성 유리기판 위에서 소수성 표면특성을 갖게 하며, 친수성은 용액 속에 dipping 하였을 때 소수성 표면 위에는 코팅되지 않도록 한 이 방법을 이용하여 유리기판 위에 Ag 패턴을 형성하였다. 또한, 세척직후 친수성 표면 특성을 보이는 유리기판의 시간에 따른 접촉각 측정을 통해 표면에너지의 변화를 분석하였다.

Keywords

References

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