Thin Film Coating by Plasma-polymerized Tetrafluoroethylene onto Solid Substrates having Complex Surface Structures

Ultra-thin plasma polymerized allylamine films for cardiovascular stent coating

Morphological Instability of Solid-on-Liquid Thin Film Structures

Subject to a compressive membrane force, a solid film on a liquid layer may form wrinkles. When the solid film is very thin, surface stresses contribute to the membrane force. When the liquid layer is very thin, the two interfaces bounding the liquid interact with each other through forces of various physical origins. We formulate the free energy of the solid-on-liquid structure, and carry out ...

Plasma-polymerized multistacked bipolar gate dielectric for organic thin-film transistors

A 10-layer stack of bipolar gate dielectric was formed by sequential layer-by-layer deposition using pulsed radio frequency (RF) plasma polymerization of allylamine and vinyl acetic acid monomers. Due to polar groups localized at the interfaces between each consecutive layer by alternating amine (–NH2) and carboxylic acid (–COOH) functional groups, a 60 nm thick multilayer structure demonstrate...

A General Strategy for Hybrid Thin Film Fabrication and Transfer onto Arbitrary Substrates

The development of thin film-based structures/devices often requires thin films to be transferred onto arbitrary substrates/surfaces. Controllable and non-destructive transfer method, although highly desired, remains quite challenging. Here we report a general method for fabrication and transfer of hybrid (ultra)thin films. The proposed solution-based in-situ transfer method shows not only its ...

Adhesion Properties of Self-Polymerized Dopamine Thin Film

We report an experimental study of the adhesion properties of polydopamine thin films and their bonding behavior on polymer, glass and metal surfaces. Dopamine is able to adsorb onto all surfaces and self-polymerize into a thin hydrophilic film. Dynamic contact angle measurements revealed a large contact angle hysteresis between advancing and receding angles and a possible hydration layer when ...