Single Step Process for Self-Assembled Block Copolymer Patterns via in Situ Annealing during Spin-Casting

Hyunjung Jung; Sanghoon Woo; Youngson Choe; Du Yeol Ryu; June Huh; Joona Bang

doi:10.1021/acsmacrolett.5b00214

Single Step Process for Self-Assembled Block Copolymer Patterns via in Situ Annealing during Spin-Casting

Hyunjung Jung, Sanghoon Woo, Youngson Choe, Du Yeol Ryu, June Huh, Joona Bang

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

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.

Original language	English
Pages (from-to)	656-660
Number of pages	5
Journal	ACS Macro Letters
Volume	4
Issue number	6
DOIs	https://doi.org/10.1021/acsmacrolett.5b00214
Publication status	Published - 2015 Jun 16

ASJC Scopus subject areas

Organic Chemistry
Materials Chemistry
Polymers and Plastics
Inorganic Chemistry

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10.1021/acsmacrolett.5b00214

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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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T1 - Single Step Process for Self-Assembled Block Copolymer Patterns via in Situ Annealing during Spin-Casting

AU - Jung, Hyunjung

AU - Woo, Sanghoon

AU - Choe, Youngson

AU - Ryu, Du Yeol

AU - Huh, June

AU - Bang, Joona

PY - 2015/6/16

Y1 - 2015/6/16

N2 - 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.

AB - 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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Single Step Process for Self-Assembled Block Copolymer Patterns via in Situ Annealing during Spin-Casting

Abstract

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