Air–Liquid Interfacial Self-Assembly of Non-Amphiphilic Poly(3-hexylthiophene) Homopolymers
| Autor: | Seunghun Hong, Jean Bouffard, Myungjae Yang, Saejin Oh, So Jung Park |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Electron mobility
Nanostructure Morphology (linguistics) Materials science Diethylene glycol Nanowire Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Viscosity chemistry Chemical engineering Amphiphile General Materials Science Self-assembly 0210 nano-technology |
| Zdroj: | ACS Applied Materials & Interfaces. 9:12865-12871 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b01058 |
| Popis: | 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 subphase 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 (∼3.6 × 10–2 cm2/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... |
| Databáze: | OpenAIRE |
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