Chemical Polishig of CdTe and Solid Solution ZnxCd1-xTe and Cd0.2Hg0.8Te by the HNO3– НІ – Glycerin Acid Aqueous Solutions
Journal Title: Фізика і хімія твердого тіла - Year 2017, Vol 18, Issue 1
Abstract
The chemical dissolution of the CdTe, ZnxCd1-xTe and Cd0.2Hg0.8 solid solutions single crystals in the HNO3 – HI – glycerin aqueous solutions has been investigated. The etching rate dependences of the mentioned above materials versus the iodine and organic content in the compositions and the kinetic peculiarities of the chemical dissolution have been determined. It was established that the dissolution rate of the semiconductor solid solutions in the HNO3 – HI – glycerin etchant compositions decreases with the increasing of oxidizer and glycerin. Using experimental data, the compositions of polishing solutions and the conditions of chemical-dynamic polishing of the CdTe, ZnxCd1-xTe and Cd0.2Hg0.8Te surfaces have been optimized.
Authors and Affiliations
E. E. Hvozdiyevskyi, R. O. Denysyuk, V. M. Tomashyk, Z. F. Tomashyk
Infiltration Kinetics of Cr3C2 by Manganese Cupronickel in the Process of Obtaining Cermets
A theoretical model of infiltration kinetics based on the Darcy's law which was evaluated by W − Lambert function has been established for Cu-Ni-Mn alloy (grade MNMts 60-20-20) during melt infiltration into Cr3C2 porous...
Thermodynamics and Crystal Defect Subsystem Zinc Telluride Crystals ZnTe (Review)
On the basis of quantum-chemical methods defined characteristic features zinc telluride crystals: formation energies ΔE, enthalpy of formation ΔH, entropy ΔS, and Gibbs energy ΔG heat capacity at constant pressure Cp and...
Crystal-Chemical Interpretation of Amphoteric Influence of Bismuth Impurity in Tin Telluride
Models of point defects of doped by bismuth tin telluride crystals considering amphoteric influence of dopant ( ) have been specified. The influence of disproportionation of charge state of impurity on the conductivity t...
Crystal ChemistryAnalysis of Ternary Phases in Systems Me-P-S(Se), where Ме – Ag, Cu, Zn, Cd, In, Tl, Sn, Pb
rystal structures ofternary thio(seleno)hypodiphosphates of metals of groups I-IV of the periodic system were analyzed. Chemical bonds in investigated phases were descripted on the base of interatomic distances in binary...
Peculiarities of Electrical Characteristics of Semi-Insulating CdTe-Cl crystals
Electrical properties of semi-insulating CdTe-Cl crystals, grown by the vertical Bridgman and the travelling heater method, have been studied. It is found that the travelling heater method provides electron conductivity...