Co effect on zinc blende–rocksalt phase transition in CdS nanocrystals
作者： Rui Zhao , Pan Wang , Bin-bin Yao , Ting-ting Hu , Tian-ye Yang
DOI: 10.1039/C4RA14798G
关键词: Phase transition 、 Nanocrystal 、 Analytical chemistry 、 Zinc 、 Doping 、 Enthalpy 、 Powder diffraction 、 Materials science 、 Bulk modulus 、 Inorganic chemistry 、 Phase (matter)
摘要: The influence of Co doping on zinc blende-to-rocksalt (ZB–RS) phase transformation in CdS nanocrystals (NCs) has been investigated. Analysis is performed using situ high pressure X-ray powder diffraction with synchrotron radiation. Pure cadmium sulphide (CdS) and cobalt-doped (CdS:Co) are prepared by gas–liquid chemical deposition. experimental data indicates that ions reduces the transition (PT) (CdS = 4.89 GPa CdS:Co 4.06 GPa) increases bulk modulus (B0) initial high-pressure phases. transitions all samples reversible. Density functional theory calculations also to study transition. enthalpy variation accord data.
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