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Air-Liquid Interfacial Self-Assembly of Non-Amphiphilic Poly(3-hexylthiophene) Homopolymers
- Title
- Air-Liquid Interfacial Self-Assembly of Non-Amphiphilic Poly(3-hexylthiophene) Homopolymers
- Authors
- Oh, Saejin; Yang, Myungjae; Bouffard, Jean; Hong, Seunghun; Park, So Jung
- Ewha Authors
- Jean Bouffard; 박소정
- SCOPUS Author ID
- Jean Bouffard; 박소정
- Issue Date
- 2017
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- ISSN
- 1944-8244
- Citation
- ACS APPLIED MATERIALS & INTERFACES vol. 9, no. 14, pp. 12865 - 12871
- Keywords
- Conjugated polymer; self-assembly; air liquid interface; field-effect transistor; nanowire
- Publisher
- AMER CHEMICAL SOC
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Here, we demonstrate that the self-assembly of poly(3-hexylthiophene) (P3HT) at the air-water interface can lead to free-standing films of densely packed P3HT nanowires. Interfacial self-assembly on various liquid subphases, such as water, diethylene glycol, and glycerol, indicates that the-viscosity of the subpliase is an important factor for the formation of well-ordered nanostructures. The thin-film morphology is also sensitive to the concentration of P3HT, its molecular weight (MW), and the presence of oxidative defects. The densely packed nanowire films can be easily transferred to solid substrates for device applications. The ultrathin films of P3HT prepared by the interfacial assembly showed significantly higher hole mobility (similar to 3.6 X 10(-2) cm(2)/V s) in a field-effect transistor than comparably thin spin-cast films. This work demonstrates that the air liquid interfacial assembly is not limited to amphiphilic polymers and can, under optimized conditions, be applied to fabricate ultrathin films of widely used conjugated polymers with controlled morphologies.
- DOI
- 10.1021/acsami.7b01058
- Appears in Collections:
- 자연과학대학 > 화학·나노과학전공 > Journal papers
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