25 April 2008 Research on the growth of dye film in vacuum in situ
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Abstract
Organic film deposition in vacuum is fast developing scientific and industrial domain. We developed installation for deposition of organic films equipped with optical spectrometer for measurements in situ. We are developing new dyes aimed for application in waveguide sensor, nonlinear optics and studying film organisation during deposition. Fluorinated azo-dyes and azomethine dyes were synthesized at University of Applied Sciences Wildau and at the Institute of Organic Chemistry, Kyiv. Compounds were evaporated at a pressure of 10-3 Pa using resistive heated crucible. Glass and glass covered with polytetrafluoroethylene (PTFE) film are used as substrates. The films were studied with Polytec and StellarNet spectrometers and an atomic force microscope. Optical spectra of the dye films revealed, that some compounds were decomposed during evaporation. Several kinds of dyes were evaporated and deposited without decomposition. Some deposited films formed H-aggregates and other types of aggregates. AFM images of dye films showed that their morphology depends on the chemical structure of the compounds and on the nature of the substrate on which the film was grown.
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K. Grytsenko, K. Grytsenko, T. Doroshenko, T. Doroshenko, Yu. Kolomzarov, Yu. Kolomzarov, V. Prokopets, V. Prokopets, O. Fedoriak, O. Fedoriak, R. Zelinski, R. Zelinski, O. Lytvyn, O. Lytvyn, D. Prescher, D. Prescher, B. Grimm, B. Grimm, V. Ksianzou, V. Ksianzou, S. Schrader, S. Schrader, O. Tolmachev, O. Tolmachev, Yu. Slominskii, Yu. Slominskii, V. Kurdiukov, V. Kurdiukov, G. Smirnova, G. Smirnova, } "Research on the growth of dye film in vacuum in situ", Proc. SPIE 6999, Organic Optoelectronics and Photonics III, 69991Z (25 April 2008); doi: 10.1117/12.780707; https://doi.org/10.1117/12.780707
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