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Polyassociative Model of A2B6 Semiconductor Melt and p-T-x Phase Equilibria in Zn-Cd-Te System

Moskvin P., Antonov M., Olchowik G., Olchowik J., Zdyb A., Gulkowski S., Sadowski W.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2011

Vol. 15, No 1

121-130

This work presents a numerical analysis of p-T-x phase equilibrium in the Zn-Cd-Te ternary system in the framework of the polyassociative solution model. On the basis of the experimental data on p-T-x phase equilibrium in the ternary system, thermodynamic functions describing the formation of liquid associates were found. It was shown that the results of the mixing of components in the Zn-Cd-Te ternary melt are related to the occurrence of ZnCdTe and ZnCdTe3 associates. Dissociation parameters of these complexes were calculated and subsequently used in order to efficiently describe p-T-x phase equilibrium of the system in a wide temperature range.

ZnO/MgO distributed Bragg reflectors

Huo B., Hu L., Zhang H., Zhao Z., Fu Q., Chen X.

Optica Applicata

2009

Vol. 39, nr 1

169--174

ZnO/MgO distributed Bragg reflectors (DBRs) are grown by pulsed laser deposition. DBR samples grown at the same temperature and the same pressure show obvious reflections in transmission spectra. If there is a standing wave in the ZnO layers, it is evident that the full width at half maximum of the ZnO peak in photoluminescence spectra could be decreased when the sample reflects more photons whose wavelength is about 380 nm.

Control of ferromagnetism in Cd1-xMnxTe quantum wells

Tatarenko S., Bertolini M., Maslana W., Boukari H., Gilles B., Cibert J., Ferrand D., Kossacki P., Gaj J. A.

Opto-Electronics Review

2003

Vol. 11, No. 2

133-138

New structures aiming at controlling ferromagnetic properties of diluted magnetic semiconductors quantum wells are presented. The carrier density is monitored by applying voltage in p-i-n diode or adjusting a distance between quantum well and surface. Surface doping was successfully applied to obtain samples with CdMnTe quantum well with up to 9.3% Mn concentration.