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Information × Registration Number 0210U001872, 0108U008954 , R & D reports Title Investigation of properties and creation of chemical sensors on ZnSe nanocrystals popup.stage_title Head Kovalenko Alexander Vladimirovich, Registration Date 23-04-2010 Organization Dniepropetrovsk national university popup.description2 Object of investigation - heteroepitaxial structures ZnSxSe1-x/GaAs(100) and quantum well structures: quantum dots, quantum wires on the basis of ZnSe nanocrystals. Intention of investigation - definition parameters of growth thin epitaxial ZnSxSe1-x layers and quantum well structures on the basis of ZnSe nanocrystals on GaAs(100) substrates by the PAVPE method: analysis connection between crystal structure, morphology of surface and photoluminescence spectra in grown samples, study electrical properties of chemical sensors for hydrogen on the basis of semiconductor ZnSe lagers and nanocrystals, analysis especially of the effect of selforganized and interaction in the system of nonequilibrium e-h pairs at high excitation level in grown samples. Methots of investigation - heteroepitaxial structures ZnSxSe1-x/GaAs(100) and quantum well structures on the basis of ZnSe nanocrystals have been grown by PAVPE method, have been investigation properties grown samples by the methods of exciton spectroscopy, scanning electron microscopy, x-ray diffraction spectroscopy, have been analysis connection between crystal structure, morphology of surface and photoluminescence spectra of grown samples, have been investigation electrical properties (dependence of the relative change in the resistance on the partial pressure of hydrogen, hydrogen-air mixture, molecular hydrogen) chemical sensors on the basis of semiconductor ZnSe layers and nanocrystals, have been study effect of selforganized and interaction in the system of nonequilibrium e-h pairs at high excitation level in grown samples. The results will be used for creation of chemical sensors and devices in the field of micro- and optoelectronics. Product Description popup.authors Буланий Михайло Филимонович Коваленко Олександр Володимирович Омельченко Сергій Олександрович Тищенко Володимир Вікторович popup.nrat_date 2020-04-02 Close