|Title:||Solvent effects on morphology and electrical properties of poly(3-hexylthiophene) electrospun nanofibers||Authors:||Hua, Chi Chung
Chen, Jung Yao
Su, Chien You
Chang, Chia Ling
Hsu, Chau Hsien
Zhang, Yi Hua
Zhang, Qin Cheng
|Keywords:||Conjugated polymer | Electrospinning | Organic field-effect transistor | Solvent effect||Issue Date:||1-Sep-2019||Journal Volume:||11||Journal Issue:||9||Source:||Polymers||Abstract:||
© 2019 by the authors. Herein, poly(3-hexylthiophene-2,5-diyl) (P3HT) nanofiber-based organic field-effect transistors were successfully prepared by coaxial electrospinning technique with P3HT as the core polymer and poly(methyl methacrylate) (PMMA) as the shell polymer, followed by extraction of PMMA. Three different solvents for the core polymer, including chloroform, chlorobenzene and 1,2,4-trichlorobenzene, were employed to manipulate the morphologies and electrical properties of P3HT electrospun nanofibers. Through the analyses from dynamic light scattering of P3HT solutions, polarized photoluminescence and X-ray diffraction pattern of P3HT electrospun nanofibers, it is revealed that the P3HT electrospun nanofiber prepared from the chloroform system displays a low crystallinity but highly oriented crystalline grains due to the dominant population of isolated-chain species in solution that greatly facilitates P3HT chain stretching during electrospinning. The resulting high charge-carrier mobility of 3.57 × 10-1 cm2·V-1·s-1 and decent mechanical deformation up to a strain of 80% make the P3HT electrospun nanofiber a promising means for fabricating stretchable optoelectronic devices.
|Appears in Collections:||化學工程學系|
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