Poly(vinylidene fluoride-co-trifluoroethylene) Thin Films after Dip- and Spin-Coating
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The ferro-, pyro- and piezoelectric properties of poly(vinylidene fluoride-co-trifluoroethylene) P(VDF-TrFE) have created interest with regard to its application in aqueous and ambient surroundings for sensors, functional coatings, and in the field of life sciences. P(VDF-TrFE) thin films are usually applied via spin-coating, but dip-coating will be advantageous especially for irregularly shaped substrates. The morphology of dip- and spin-coated semi-crystalline thin films is studied as a function of both the film thickness and the annealing temperature. The characterization of the films is carried out by grazing incidence wide-angle X-ray scattering (GIWAXS), X-ray reflectometry (XRR), and infrared reflection absorption spectroscopy (IRRAS). Atomic force microscopy measurements (AFM) are used to examine the resulting topography. It is found that both spin- and dip-coated thin films crystallize in the desired edge-on orientation, but the overall crystallinity after dip-coating is decreased compared to the spin-coated films of comparable thickness and the resulting roughness is increased. The higher roughness is most probably caused by the slower evaporation of the solvents and a secondary crystallization process at the air-polymer interface.
Details
Original language | English |
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Article number | 2200296 |
Journal | Macromolecular materials and engineering |
Volume | 307 |
Issue number | 10 |
Publication status | Published - Oct 2022 |
Peer-reviewed | Yes |
External IDs
Scopus | 85134538245 |
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ORCID | /0000-0002-8740-8310/work/170542562 |
Keywords
Keywords
- dip-coating, edge-on orientation, P(VDF-TrFE), thin films, trans-crystallinity, VIPS