No abstract available

[en] Galvanomagnetic properties of Cd and its dilute alloys have been studied experimentally for the past several years. A number of authors have attempted to explain them, using the concept of inter-sheet scattering. None of the explanations has so far been very successful in explaining the experimental observations. In this note we have emphasized the requirement of a theory that could more successfully explain the experimental observations and have suggested the nature of interactions that may ultimately unfold the phenomena. (author)

[en] The wide band gap, high effective Z-number and high resistivity of CdZnTe make it a good candidate for use as a room temperature operated detector with good absorption efficiency. In radiation detector, leakage currents are one of main noise sources and must be minimized to achieve good energy resolution. Leakage currents are from CdZnTe crystal itself, thus, this cannot be controlled after crystal growth. But surface leakage currents can be controlled by such as passivation. There are some methods to passivated CdZnTe Such as dielectric substance deposition, II-VI isomer growth on surface and native oxide film coating. In this study, Passivation was performed with NH₄F contained solution. And passivation effects were studied by comparison with leakage currents before and after passivation. Gamma-ray response is also addressed

No abstract available

[en] Ways of nonequilibrium crystallization of alloys in the cadmium arsenic system are considered. Three types of metastable phase diagrams are singled out and analyzed and their p-T and T-x-projections are ploted

No abstract available

[en] We present the optical properties of zinc-blende CdSe and ZnSe ¯lms, which have been determined by using vacuum ultra-violet spectroscopic ellipsometry (SE) whose spectral range is from 0.7 to 9.0 eV at room temperature. We observed new critical point energies, whose observation by SE has not been reported so far, in the spectral range above 6 eV. We interpret these new peaks as a previously reported transition from a band-structure calculation. The values of the critical point energies were determined from numerically calculated second energy derivatives of these data.

[en] A new superplastic alloy consisting of 81.73% Cd - 17.23% Zn was obtained and processed by Constant Angular Canal Extrusion (CACE). The value of the sensitivity to the speed of deformation index and its maximum deformation were determined. The effect of the temperature is analyzed and a summary of the process for obtaining the alloy is presented (au)

[en] Metal-semiconductor contact is very important for the operating property of semiconductor detector. Cd_0.96 Zn_0.04 Te semiconductor crystal was grown with Bridgman method, and the crystal was cut and polished. EPMA (Electron Probe Micro Analyzer) and ICP-MS (Inductively Coupled Plasma Mass Spectrometry) analysis were done to obtain the chemical composition and impurity of the crystal. Metal contact was deposited with thermal evaporator on both sides of the crystal. Detectors with Au/CZT/Au and In/CZT/Au structure were made, and I-V curve and the energy spectrum were measured with the detectors. It could be seen that the detector with the In/CZT/Au structure has superior property than the detector with Au/CZT/Au structure when the crystal resistivity was low. However, the metal contact structure effect becomes low when the crystal resistivity was high

[en] The methods of differential thermal, X-ray phase, microstructural analysis and measurements of microhardness are used to plot Cd-InP polythermal cross section. Unknown inclusions are found in alloys subjected to extreme quenching at temperatures above 500 deg C