Band-Like Charge Transport in Phytic Acid-Doped Polyaniline Thin Films
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We explore the charge transport properties of phytic acid (PA) doped polyaniline thin films prepared by the surfactant monolayer-assisted interfacial synthesis (SMAIS). Structural and elemental analysis confirms the inclusion of PA in the thin films and reveals a progressive loss of crystallinity with the increase of PA doping content. Charge transport properties are interrogated by time-resolved terahertz (THz) spectroscopy. Notably, independently of doping content and hence crystallinity, the frequency-resolved complex conductivity spectra in the THz region can be properly described by the Drude model, demonstrating band-like charge transport in the samples and state-of-the-art charge carrier mobilities of ≈1 cm2V−1s−1. A temperature-dependent analysis for the conductivity further supports band-like charge transport and suggest that charge carrier mobility is primarily limited by impurity scattering. This work highlights the potential of PA doped polyaniline for organic electronics.
Details
Original language | English |
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Article number | 2105184 |
Journal | Advanced functional materials |
Volume | 31 |
Issue number | 43 |
Publication status | Published - 20 Oct 2021 |
Peer-reviewed | Yes |
External IDs
ORCID | /0000-0002-8487-0972/work/142247511 |
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Keywords
Research priority areas of TU Dresden
ASJC Scopus subject areas
Keywords
- band-like charge transport, conducting polymers, interfacial synthesis, polyaniline, thin films