Transparent and fluorescent plasma polymers from aromatic hydrocarbons
| Autor: | E. Räuchle, M. Kaiser, M Hauser, K.-M. Baumgärtner, Matthias Walker, K Kharitonov |
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| Rok vydání: | 1998 |
| Předmět: |
Materials science
Hydrogen Analytical chemistry chemistry.chemical_element Surfaces and Interfaces General Chemistry Condensed Matter Physics Photochemistry Fluorescence Toluene Electron cyclotron resonance Surfaces Coatings and Films Styrene chemistry.chemical_compound chemistry Materials Chemistry Thin film Laser-induced fluorescence Benzene |
| Zdroj: | Surface and Coatings Technology. 105:165-168 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/s0257-8972(98)00480-0 |
| Popis: | The plasma deposition of organic fluorescent films from volatile aromates is investigated. The plasma is produced in the pressure range of about 10 Pa by microwave excitation ( f =2.45 GHz) at electron cyclotron resonance. The fluorescence properties of the deposited films on glass slides at an excitation wavelength of 350 nm were studied. The spectral response is wide and shifted to the visible spectral regime, depending on the plasma conditions and the monomer mixtures used. The fluorescence of plasma polymerised benzene is orange, the polymer of toluene yellow and that of styrene yellow–green. The addition of hydrogen or ethylene changes the fluorescence colour and intensity. Highest intensities were obtained with mixtures of benzene and hydrogen, the strongest red shift was obtained with pure benzene. The fluorescence can be explained as a superimposed fluorescence emission of a sum of aromatic luminophores formed in the plasma and deposited on the substrate. |
| Databáze: | OpenAIRE |
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