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STRUCTURAL PARAMETERS AND OPTOELECTRONIC PROPERTIES OF Mg-IV-V2 (IV=Si, Ge, Sn AND V=P, As) COMPOUNDS

Author

Listed:
  • M. IBRAHIM

    (Department of Physics, Islamia College Peshawar, KPK, Pakistan)

  • HAYAT ULLAH

    (#x2020;Material Modeling and Simulation Lab, Department of Physics, Women University of Azad Jammu & Kashmir Bagh, Pakistan)

  • SAEED ULLAH JAN

    (Department of Physics, Islamia College Peshawar, KPK, Pakistan)

  • MANZAR ALI

    (#x2020;Material Modeling and Simulation Lab, Department of Physics, Women University of Azad Jammu & Kashmir Bagh, Pakistan)

  • M. GULBAHAR ASHIQ

    (#x2021;Basic Engineering Sciences Department, College of Engineering, Majmaah University, Saudi Arabia)

Abstract

Semiconductors are the backbone of the optoelectronic industry. Direct band gap materials in the visible energy region are highly desirable for the efficient optoelectronic applications. In this work, we have probed the structural, electronic and optical properties of Mg-IV-V2 (IV=Si, Ge, Sn and V=P, As) compounds by FP-LAPW calculations, based on density functional theory. Their crystal structure is chalcopyrite with space group of I-42d. The lattice constants of MgSiP2, MgSiAs2 and MgGeAs2 are consistent with experimental results. These compounds show semiconductor behavior with direct band gap ranging from 1.3–2.15eV. Optical properties were also investigated. Optical properties include real and imaginary parts of dielectric constant, energy loss function, refraction and reflection. Direct band gap nature and good response in the visible region of these compounds predict their usefulness in optoelectronic devices.

Suggested Citation

  • M. Ibrahim & Hayat Ullah & Saeed Ullah Jan & Manzar Ali & M. Gulbahar Ashiq, 2018. "STRUCTURAL PARAMETERS AND OPTOELECTRONIC PROPERTIES OF Mg-IV-V2 (IV=Si, Ge, Sn AND V=P, As) COMPOUNDS," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(05), pages 1-11, July.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:05:n:s0218625x18501081
    DOI: 10.1142/S0218625X18501081
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