Národní úložiště šedé literatury Nalezeno 7 záznamů.  Hledání trvalo 0.01 vteřin. 
Epitaxní růst z kapalné fáze
Nohavica, Dušan
Poměrně rozsáhlá přednáška shrnuje základní aspekty přípravy epitaxních vrstev z kapalné fáze (LPE), s důrazem ne deposici polovodičů. Jsou uvedeny způsoby dosažení maximální reprodukovatelnosti růstového procesu a účinnosti deposice. Důraz je rovněž kladen na rozbor mechanizmů tvorby dislokací v epitaxních vrstvách.
Physical properties of InP epitaxial layers prepared with dysprosium admixture
Grym, Jan ; Procházková, Olga
Physical properties of commonly prepared InP layers grown by LPE technique and those grown from Dy treated melt are compared. The layers were examined by SEM, low temperature PL spectroscopy, C-V measurements and temperature dependent Hall effect. Structural, electrical and optical properties of InP layers exhibit a significant dependence on the presence of Dy and its concentration in the melt. When increasing the concentration of Dy the reversal of electrical conductivity occurs.
Influence of rare-earth elements on InP-based semiconductor structures for radiation detectors
Grym, Jan ; Procházková, Olga
Preparation and characterization of InP epitaxial layers with Tb admixture in the growth melt is reported. Structural, electrical and optical properties of InP layers exhibit a signaficant dependence on the presence of Tb and its concentration in the melt. When increasing the concentration of Tb in the growth melt the reversal of electrical conductivity occurs.
Characterisation of InP layers prepared by the LPE method with Pr and Nd addition in the growth melt
Grym, Jan ; Procházková, Olga ; Zavadil, Jiří ; Žďánský, Karel
High purity InP epitaxial layers were grown by LPE from the melt conataining, besides essential components, also rare-earth elements admixture. The layers were examined by SEM, low temperature PL spectroscopy, C-V measurements and temperature dependent Hall effect. The behaviour and the impact of Pr and Nd were compared. The concentration of shallow impurities was reduced by up to three orders of magnitude. PL spectra were markedly narrowed and fine spectral features were resolved.

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