Nanostructures including nanohole and metal dot arrays were fabricated by hybrid processes combing self-assembled diblock copolymer and conventional semiconductor processes. The interfacial energy between polystyrene- b -polymethylmetacrylate (PS- b -PMMA) diblock copolymer and substrate surface was controlled by employing a self-assembled monolayer (SAM), resulting in a polymer template with well-ordered cylindrical nanohole array. The nanohole sizes were controlled within 10 to 22 nm in diameter using block copolymers with different molecular weights. The PS nanotemplates were fabricated on various substrates, including oxides, nitrides, and poly-Si. Nanohole pattern was transferred by dry etching process, producing inorganic nanohole templates. Also, gold nanodot arrays with diameter smaller than 10 nm were fabricated through lift off process.
|Number of pages||6|
|Journal||Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures|
|Publication status||Published - 2008|
Bibliographical noteFunding Information:
This work was supported by Korea Research Foundation (Basic Research Promotion Fund Grant No. KRF-2006-311-D00114 and MOEHRD Grant Nos. KRF-2005-005-J13102, KRF-2007-331-D00243), the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MOST) (No. R01-2007-000-20143-0), Nano R&D Program through the Korea Science and Engineering Foundation funded by the Ministry of Science & Technology (Grant No. 2007-02864), and POSTECH Core Research Program. The authors gratefully acknowledge the financial support of the System IC 2010 Program, Korea Electronic Tchnology Institute, and thank J. W. Park in POSTECH for help in contact angle measurements. S.J.K. and W.J.M. were financially supported by the second stage of the Brain Korea 21 Project in 2007.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Electrical and Electronic Engineering