Solvent effects on morphology and electrical properties of poly(3-hexylthiophene) electrospun nanofibers

Jung Yao Chen, Chien You Su, Chau Hsien Hsu, Yi Hua Zhang, Qin Cheng Zhang, Chia Ling Chang, Chi Chung Hua, Wen Chang Chen

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number1501
JournalPolymers
Volume11
Issue number9
DOIs
Publication statusPublished - 2019 Sept 1

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Polymers and Plastics

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