Abstract
By using the parent monomers, 3,4-ethylenedioxythiophene and aniline, a series of nanocomposites consisting of different mass ratios of polyaniline (PANI) to poly(3,4-ethylenedioxythiophene) (PEDOT) have been successfully prepared in hydrochloric acid solution through oxidative polymerization, then redoped with p-toluenesulfonic acid (p-TSA). Firstly, PEDOT nanoparticles were fabricated via chemical oxidation polymerization in reverse (water-in-oil) microemulsions. Then, PANI-doped PEDOT nanoparticles were formed by oxidative polymerization of aniline to form PANI/PEDOT nanofibers. The resulting nanostructured components were characterized by scanning electron microscopy (SEM) and a series of spectroscopic methods. The presence of PEDOT increased the room-temperature electrical conductivity of the PANI/PEDOT nanocomposites by more than two orders of magnitude in comparison with the parent PANI. Moreover, the PANI/PEDOT nanocomposites showed better thermoelectric properties than PANI. Different concentrations of p-TSA also affected the electrical conductivity and Seebeck coefficient of the nanocomposites. With increasing temperature, both the electrical conductivity and Seebeck coefficient increased.
Original language | English |
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Pages (from-to) | 1813-1820 |
Number of pages | 8 |
Journal | Journal of Electronic Materials |
Volume | 45 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2016 Mar 1 |
Externally published | Yes |
Keywords
- poly(3,4-ethylenedioxythiophene) (PEDOT)
- Polyaniline (PANI)
- thermoelectric properties
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry