Ab-initio investigation of electronic and optical properties of InAs1-xPx alloys

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Mazin O., Kasap E., Korozlu N.

GAZI UNIVERSITY JOURNAL OF SCIENCE, cilt.23, sa.2, ss.149-153, 2010 (Hakemli Dergi) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 2
  • Basım Tarihi: 2010
  • Dergi Adı: GAZI UNIVERSITY JOURNAL OF SCIENCE
  • Sayfa Sayıları: ss.149-153
  • Anahtar Kelimeler: Alloys, Electronic structures, Optical properties
  • Gazi Üniversitesi Adresli: Evet

Özet

The electronic energy band structure and linear optical properties InAs1-xPx alloys are investigated by an ab initio pseudopotential method using density functional theory in the local density approximation (LDA) and a scissors approximation. The calculated band gap energy and density of state (DOS). Electronic band structure shows that InAs1-xPx alloys are direct band gap and the optical band gap increase from 0.24 to 1.20 eV with increasing P concentrations. The linear energy dependent dielectric functions and some optical properties such as absorption, energy loss function refractive index and reflectivity calculated. Our results agree well with the available data in the literature.