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	Preparation and properties of pyroelectric detectors for optoelectronic applications /III/ Novotný, Jan ; Zelinka, Jiří ; Podvalová, Zdislava ; Malina, Václav ; Vávra, Vladimír ; Franc, J. ; Fronc, Václav ; Fronc, Václav The single crystals of TGS doped with Pt-ions and with L-alanine were grown as in ferroelectric phase as the full-shaped crystals. The growth rate along the axis c of the doped crystals is much higher than in an undoped one. Morphology, domain structure and hysteresis loops were investgated. The effect of the dopant on the growth velocity is explained on the basis of catalytic action of platinum complexes. The pyroelectric detectors were prepared from these materials and their parameters are presented. Detailed record
	Preparation and properties of pyroelectric detectors for optoelectronic applications (II) Novotný, Jan ; Zelinka, Jiří ; Podvalová, Zdislava ; Malina, Václav ; Vávra, Vladimír ; Krechler, Jindřich ; Franc, V. ; Fronc, Václav Technology of preparation of doped single crystals of triglycine sulphate for application in optoelectronics is described. Internal report contains also technology of preparation of simple pyroelectric detectors which operate in infrared region, wavelengths 2-25ćm. Measurement methods for infrared detectors and their basic technical parameters are presented. The prepared infrared detectors operate as non-cooling elements with hybrid high impedance amplifier. Detailed record
	Preparation and properties of pyroelectric detectors for optoelectronic applications (I) Novotný, Jan ; Březina, Bohumil ; Zelinka, Jiří ; Malina, Václav ; Vávra, Vladimír ; Zavadil, Jiří ; Velvarský, Jaroslav ; Fronc, Václav ; Pospíšil, Miroslav The photodetectors operating in the 0.8-20ćm wavelength region have been prepared. The report is devoted to the research and realisation of novel types of materials on the basis TGS single crystals family. The prepared detectors have been tested in static and dynamical regime of operation. The obtained results have been passed on TESLA BLATNÁ Company. Detailed record

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