TY - JOUR A1 - Yeshchenko, Oleg A. A1 - Dmitruk, Igor M. A1 - Grytsenko, Kostyantyn A1 - Prokopets, Vadym M. A1 - Kotko, Andriy V. A1 - Schrader, Sigurd T1 - Influence of interparticle interaction on melting of gold nanoparticles in Au/polytetrafluoroethylene nanocomposites JF - Journal of Applied Physics N2 - The temperature dependence of the surface plasmon resonance energy and width in 5 nm spherical gold nanoparticles embedded in a polymer polytetrafluoroethylene matrix has been studied using absorption spectroscopy. The jumplike features have been observed in these dependences indicating the melting of gold nanoparticles at temperatures considerably lower than the bulk melting point. The interaction between gold nanoparticles sufficiently affects the melting of nanoparticles. The increase in the filling factor of the particles leads to a decrease in the melting temperature of gold nanoparticles. Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-9759 SN - 1089-7550 VL - 105 IS - 9 ER - TY - CHAP A1 - Grytsenko, Kostyantyn A1 - Doroshenko, T. A1 - Kolomzarov, Yurii A1 - Prokopets, Vadym M. A1 - Fedoriak, O. A1 - Zelinski, R. A1 - Lytvyn, Oksana A1 - Prescher, Dietrich A1 - Grimm, Bernd A1 - Ksianzou, Viachaslau A1 - Schrader, Sigurd A1 - Tolmachev, O. I. A1 - Slominskii, Yu L. A1 - Kurdiukov, V. A1 - Smirnova, G. T1 - Research on the growth of dye film in vacuum in situ N2 - 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. KW - dye KW - solid KW - film KW - in situ KW - optical spectra KW - vacuum deposition Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-15206 SP - 318 EP - 323 PB - Society of Photo-Optical Instrumentation Engineers (SPIE) ER -