Chemical Vapor Deposition · 2015 · 17 citations · 24 references
Natural SciencesMaterials EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringPolymer MaterialsOptical PolymersOrganic SemiconductorsPolymer CharacterizationPolymer DegradationPolymer StabilityPolymer Thin FilmsPhotoluminescencePhotoluminescence SpectroscopyPhotooxidationPlasma DepositionPlasma Treatment Of PolymersPlasma-induced DegradationPolymer AgingUltraviolet Degradation
Plasma polymers are often limited by their susceptibility to spontaneous and photo‐oxidation. We show that the unusual photoluminescence (PL) behavior of a plasma polymer of trans ‐2‐butene is correlated with its PL strength. These photo‐processes occur under blue light illumination (λ = 405 nm), distinguishing them from traditional ultraviolet degradation of polymers. These photo‐active defects are likely formed during the plasma deposition process, and we show that a polymer synthesized using initiated (i)CVD, a non‐plasma method, has 1000× lower PL signal and enhanced photo‐stability. Non‐plasma methods, such as iCVD, may therefore be a route to overcoming material aging issues that limit the adoption of plasma polymers.
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