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Spray-Coating Thin Films on Three-Dimensional Surfaces for a Semitransparent Capacitive-Touch Device
- Source :
- ACS Applied Materials & Interfaces
- Publication Year :
- 2018
- Publisher :
- American Chemical Society (ACS), 2018.
-
Abstract
- Here, we formulate low surface tension (∼30 mN/m) and low boiling point (∼79 °C) inks of graphene, single-wall carbon nanotubes and conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and demonstrate their viability for spray-coating of morphologically uniform ( Sq ≈ 48 ± 3 nm), transparent conducting films (TCFs) at room temperature (∼20 °C), which conform to three dimensional curved surfaces. Large area (∼750 cm2) hybrid PEDOT:PSS/graphene films achieved an optical transmission of 67% in the UV and 64% in the near-infrared wavelengths with a conductivity of ∼104 S/m. Finally, we demonstrate the spray-coating of TCFs as an electrode on the inside of a poly(methyl methacrylate) sphere, enabling a semitransparent (around 360°) and spherical touch sensor for interactive devices.
- Subjects :
- 0306 Physical Chemistry (incl. Structural)
capacitive touch sensor
Technology
Science & Technology
PERCOLATION
carbon nanotubes
transparent conducting film
3D surfaces
Materials Science
graphene
0904 Chemical Engineering
Materials Science, Multidisciplinary
SENSOR
0303 Macromolecular and Materials Chemistry
HIGHLY TRANSPARENT
LIQUID-PHASE EXFOLIATION
RAMAN-SPECTROSCOPY
Science & Technology - Other Topics
GRAPHENE OXIDE
liquid phase exfoliation
Nanoscience & Nanotechnology
DEPOSITION
spray coating
Research Article
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- ACS Applied Materials & Interfaces
- Accession number :
- edsair.doi.dedup.....86c71a04c939734fad38b330605cebdf
- Full Text :
- https://doi.org/10.17863/cam.26809