Browsing by Author "Hotra, O."

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    Electronic psychrometer based on August-Assmann method
    (Видавництво Національного університету “Львівська політехніка”, 2003) Proszak, W.; Proszak, D.; Hotra, O.; Melnyk, O.
    Наведено результати розробки, моделювання та описано функціонування електронного психрометра на основі методу Огуста–Асмана. The design, modelling and operation of electronic psychrometer based on August-Assmann method are considered at the paper.
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    Thermosensitive integrated circuits with relative temperature scale
    (Видавництво Національного університету «Львівська політехніка», 2004) Hotra, O.; Lychkovskyj, E.; Stadnyk, B.
    On the basis of the received results of investigations new thermosensitive IC based on negative differential conductivity are created. These IC provide the possibility of temperature control in the wide temperature range of -50...+1200C.
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    ZnMgO:Al anode layer for organic light emitting diode based on carbazole derivative
    (Видавництво Львівської політехніки, 2012) Luka, G.; Volyniuk, D.; Tomkeviciene, A.; Simokaitiene, J.; Grazulevicius, J. V.; Stakhira, P.; Cherpak, V.; Sybilski, P.; Witkowski, B. S.; Godlewski, M.; Guziewicz, E.; Hotra, Z.; Hotra, O.
    We demonstrate the fabrication and properties of an near ultraviolet organic light emitting diode (UV OLED) that contains 2,7-di(9-carbazolyl)-9-(2-ethylhexyl)carbazole organic emitting layer and aluminumdoped magnesium zinc oxide (ZnMgO:Al) layer as transparent electrode. The obtained ZnMgO:Al layer is transparent for the wavelengths longer than 325 nm and has low resistivity of the order of 10-3 cm. The UV OLED device turns on at the applied voltage of 9 V.