Organic Dielectric Films for Flexible Transistors as Gas Sensors
Cross-linked polymer films with poly(melamine-co-formaldehyde) methylated (PMF) were investigated in order to integrate flexible organic transistor-based sensors. By blending poly(methyl methacrylate) (PMMA) with PMF, solutions showed reduced viscosity for wet processing. Thin-films from poly (4-vinylphenol) (PVP) blends with PMF featured lower RMS roughness (0.37 nm) and higher dielectric constant (k ~ 3.7 – 5.7). The presence of enhanced cross-linking at higher PMF concentrations was confirmed for both polymers from chemical resistance essays and structural characterization.
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