Single Step Process for Self-Assembled Block Copolymer Patterns via in Situ Annealing during Spin-Casting
- Authors
- Jung, Hyunjung; Woo, Sanghoon; Choe, Youngson; Ryu, Du Yeol; Huh, June; Bang, Joona
- Issue Date
- 6월-2015
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS MACRO LETTERS, v.4, no.6, pp.656 - 660
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS MACRO LETTERS
- Volume
- 4
- Number
- 6
- Start Page
- 656
- End Page
- 660
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/93443
- DOI
- 10.1021/acsmacrolett.5b00214
- ISSN
- 2161-1653
- Abstract
- We demonstrated a simple and time-efficient processing method for facilitating a microphase separation of block copolymers (BCPs) based on a single step of spin-casting with low volatile solvent and in situ annealing. Well-ordered lamellar patterns of poly(styrene-b-methyl methacrylate) BCP films having wide range of molecular weights (51-235 kg/mol) were fabricated by a single 3 min process of spin-casting, even without the conventional pretreatment of substrate neutralization. The formation of this well-ordered lamellar structure is attributed to a synergetic effect between slow solvent evaporation and thermal energy that may provide an efficient cooling profile for the BCP film during the spin-casting process.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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