CdTe Nanocrystal Synthesis in SiO2/Si Ion‐Track Template: The Study of Electronic and Structural Properties

R. Balakhayeva, Abdirash T. Akilbekov, Zein Baimukhanov, Abay B. Usseinov, Sh. Giniyatova, Maxim Vladimirovich Zdorovets, Liudmila A. Vlasukova, Anatoli I. Popov, Alma K. Dauletbekova, Rakhima Daurenbekova

2020

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DOI 10.1002/pssa.202000231

Data confidence 85 high

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Abstract

The synthesis of CdTe nanocrystals (NCs) is performed by electrochemical deposition into prepared ion tracks in a a‐SiO2/Si‐n template. As a result, CdTe NCs are obtained in a wurtzite (WZ) crystal phase. The measurement of the current–voltage characteristics shows that the CdTe (WZ NC)/SiO2/Si system obtained in this way has n‐type conductivity. Computer simulations using the CRYSTAL computer code show good agreement between experimental and calculated lattice parameters. The theoretical calculations also show that the crystal has a direct bandgap at the Γ point of the Brillouin zone.