Structural Defects in Cd1 − x Zn x As2 Solid Solutions

Morozova, V. A.; Маренкин, С. Ф.; Mikhailov, S. G.; Koshelev, O. G.

doi:10.1007/s10789-005-0257-z

Inorg Mater

2005

DOI: 10.1007/s10789-005-0257-z

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Structural Defects in Cd1 − x Zn x As2 Solid Solutions

V. A. Morozova

С. Ф. Маренкин

S. G. Mikhailov

et al.

Abstract: The impurity photoconductivity spectra of undoped Cd 1 -x Zn x As 2 single crystals with x ≤ 0.06 are measured in the range 85-300 K. The results are used to determine the ionization energies of donor and acceptor levels produced in the crystals by structural defects: ε d ≈ 0.019, 0.26, and 0.42 eV; ε a = 0.24 and 0.34 eV, respectively. The nature of the structural defects responsible for these levels is discussed.

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Thermodynamic Evaluation and Optimization of the As–Cd, As–Zn and As–Cd–Zn Systems

Kidari

Chartrand

2023

Metall Mater Trans B

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In this work, a critical evaluation of all available phase diagrams and thermodynamic data for the As–Cd, As–Zn and As–Cd–Zn systems has been performed and thermodynamic assessments over the whole composition ranges are presented using the CALPHAD method. To predict thermodynamic properties and phase equilibria for these systems, the Modified Quasichemical Model for short range ordering was used for the liquid phase and the Compound Energy Formalism was used for the solid solutions. The optimized binary systems are in good agreement with existing experimental data. Within the ternary system predicted phase equilibria, the $${\text{ZnAs}}_{2}{-}{\text{CdAs}}_{2}$$ ZnAs 2 - CdAs 2 and $${{\text{Zn}}_{3}\text{As}}_{2}{-}{{\text{Cd}}_{3}\text{As}}_{2}$$ Zn 3 As 2 - Cd 3 As 2 sections are in good agreement with the experimental data. Also, the eutectic temperature is accurately optimized for $${\text{ZnAs}}_{2}{-}{{\text{Cd}}_{3}\text{As}}_{2}$$ ZnAs 2 - Cd 3 As 2 and $${{\text{Zn}}_{3}\text{As}}_{2}{-}{\text{CdAs}}_{2}$$ Zn 3 As 2 - CdAs 2 . However, the calculated liquidus of these two joins are less satisfactory compared to the experimental data. This is most likely due to the polymerization behavior of arsenic and its multivalence, which is not considered by the model used in this work.

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Thermodynamic Evaluation and Optimization of the As–Cd, As–Zn and As–Cd–Zn Systems

Kidari

Chartrand

2023

Metall Mater Trans B

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Structural defects and band-structure parameters of CdAs2, ZnAs2, Cd1 − x Zn x As2, and Zn1 − x Cd x As2 single crystals

2010

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Structural Defects in Cd1 − x Zn x As2 Solid Solutions

Cited by 2 publications

References 4 publications

Thermodynamic Evaluation and Optimization of the As–Cd, As–Zn and As–Cd–Zn Systems

Thermodynamic Evaluation and Optimization of the As–Cd, As–Zn and As–Cd–Zn Systems

Structural defects and band-structure parameters of CdAs2, ZnAs2, Cd1 − x Zn x As2, and Zn1 − x Cd x As2 single crystals

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