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Study of electrical and dielectric properties of thin polymer films

By Zdeňka Miklíková

Abstract

The thesis is focused on the study of electric and dielectric properties of thin-film organic materials that can be used as an active layer of photovoltaic cells. Primarily were studied the properties of the layers on the glass substrate, which consist of a thin active layer of mixture ZnPc/PCBM with Al or Au contact. On the selected samples were first measured current-voltage characteristics in the dark and during the exposure then on the selected samples were measured frequency dependences (impedance spectra) in the dark and finally on the selected samples were measured relaxation characteristics (transient response analysis – current dependences on time at constant voltage) in the dark. The measured data for transient measurement were evaluated using the methods of fractal analysis in HarFA. The results will be used to optimize the properties of photovoltaic cells

Topics: phtalocyanine; current-voltage characteristic; Fotovoltaický článek; Photovoltaic cells; transient response analysis; impedanční spektroskopie; fuleren; ftalocyanin; tranzientní měření; Fourier transformation; Fourierova transformace; fraktální analýza; fractal analysis; volt-ampérová charakteristika; fulleren; impedance spectroscopy
Publisher: Vysoké učení technické v Brně. Fakulta chemická
Year: 2013
OAI identifier: oai:invenio.nusl.cz:214068
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