@article{GrytsenkoLozovskiStrilchuketal.2012, author = {Grytsenko, Kostyantyn and Lozovski, Valeri and Strilchuk, Galyna and Schrader, Sigurd}, title = {Evaluation of the Mechanism of the Gold Cluster Growth during Heating of the Composite Gold-Polytetrafluoroethylene Thin Film}, series = {Nanomaterials}, volume = {2}, journal = {Nanomaterials}, number = {4}, issn = {2079-4991}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-6387}, pages = {366 -- 378}, year = {2012}, abstract = {Nanocomposite films consisting of gold inclusions in the polytetrafluoroethylene (PTFE) matrix were obtained by thermal vacuum deposition. Annealing of the obtained films with different temperatures was used to measure varying of film morphologies. The dependence of optical properties of the films on their morphology was studied. It was established that absorption and profile of the nanocomposite film obtained by thermal vacuum deposition can be changed with annealing owing to the fact that different annealing temperatures lead to different average particle sizes. A method to calculate the optical properties of nanocomposite thin films with inclusions of different sizes was proposed. Thus, comparison of experimental optical spectra with the spectra obtained during the simulation enables estimating average sizes of inclusions. The calculations give the possibility of understanding morphological changes in the structures.}, language = {en} } @article{GrytsenkoSchraderDetert2014, author = {Grytsenko, Kostyantyn and Schrader, Sigurd and Detert, Heiner}, title = {Ultra-stable dye-filled polytetrafluoroethylene thin films}, series = {Nanoscience \& Technology: Open Access}, volume = {1}, journal = {Nanoscience \& Technology: Open Access}, number = {2}, issn = {2374-8141}, doi = {10.15771/2374-8141_2014_1}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-5947}, pages = {5}, year = {2014}, abstract = {Polytetrafluoroethylene (PTFE) and polyparaphenylene sulphide (PPS) thin films filled with molecules of different dyes were obtained by co-deposition in vacuum. The PTFE matrix prevented aggregation of dye molecules more strongly, than PPS matrix. During heating PTFE matrix kept the dye molecules in not aggregated state up to dye decomposition temperature. Dyes of all types, buried in the PTFE matrix, exhibited high stability toward actions of external factors: light, temperature, acids.}, language = {en} }