CdTe Nanocrystal Synthesis in SiO<sub>2</sub>/Si Ion‐Track Template: The Study of Electronic and Structural Properties
R. Balakhayeva, А. Аkilbekov, Zein Baimukhanov, А. Usseinov, Sh. Giniyatova, Maxim V. Zdorovets, Л. А. Власукова, Anatoli I. Popov, Alma Dauletbekova
Abstract
The synthesis of CdTe nanocrystals (NCs) is performed by electrochemical deposition into prepared ion tracks in a a‐SiO 2 /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)/SiO 2 /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.
Topics & Concepts
Wurtzite crystal structureNanocrystalBrillouin zoneCadmium telluride photovoltaicsMaterials scienceIonCrystal (programming language)Band gapCrystal structureOptoelectronicsNanotechnologyCrystallographyCondensed matter physicsChemistryComputer sciencePhysicsProgramming languageMetallurgyZincOrganic chemistryIon-surface interactions and analysisQuantum Dots Synthesis And PropertiesSemiconductor materials and interfaces