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- W2746685332 abstract "There is a growing demand to improve the operational lifetime of electroluminescent devices utilizing conjugatedpolymers which are often deposited over metal electrodes. Photo-degradation of the emissive organic layer is onefactor that decreases the overall efficiency and longevity of these devices. Therefore, it is important to investigate theunderlying photochemistry at metal-polymer interface. Here, the effects of metal films on the emission properties oforganic polymers are studied using Total Internal Reflection Fluorescence (TIRF) microscopy and FluorescenceLifetime Imaging (FLIM). Poly(phenylene vinylene) (MEHPPV) is spun cast over gold films of varying thickness (2nm to 8 nm). Whereas 8 nm gold films completely quench the MEHPPV fluorescence, thinner gold films (~ 2 nm)cause minimal quenching. However, deposition on the thinner gold films leads to a dramatic increase in photo-stabilityof MEH-PPV relative to that on glass, even in the presence of molecular oxygen and under continuous laserillumination. Good overlap between the surface plasmon absorbance of gold films and the emission of MEHPPV isrequired for this effect as it is not observed on metals without a plasmon band in this spectral region." @default.
- W2746685332 created "2017-08-31" @default.
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- W2746685332 date "2017-08-24" @default.
- W2746685332 modified "2023-09-26" @default.
- W2746685332 title "Effects of plasmonic metal films on the emission properties of organic films" @default.
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- W2746685332 doi "https://doi.org/10.1117/12.2274306" @default.
- W2746685332 hasPublicationYear "2017" @default.
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