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Träfflista för sökning "WFRF:(Araujo S) srt2:(2002-2004)"

Sökning: WFRF:(Araujo S) > (2002-2004)

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  • Ahuja, Rajeev, et al. (författare)
  • Electronic and optical properties of lead iodide
  • 2002
  • Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 92:12, s. 7219-7224
  • Tidskriftsartikel (refereegranskat)abstract
    • The electronic properties and the optical absorption of lead iodide (PbI2) have been investigated experimentally by means of optical absorption and spectroscopic ellipsometry, and theoretically by a full-potential linear muffin-tin-orbital method. PbI2 has been recognized as a very promising detector material with a large technological applicability. Its band-gap energy as a function of temperature has also been measured by optical absorption. The temperature dependence has been fitted by two different relations, and a discussion of these fittings is given.
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3.
  • Ahuja, Rajeev, et al. (författare)
  • Optical properties of SiGe alloys
  • 2003
  • Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 93:7, s. 3832-3836
  • Tidskriftsartikel (refereegranskat)abstract
    • The optical properties of Si1-xGex have been investigated theoretically using a full-potential linear muffin-tin-orbital method. We present the density-of-states as well as the real and imaginary parts of the dielectric function. The calculated dielectric function was found to be in good agreement with the spectroscopic ellipsometry measurements by J. Bahng , J. Phys.: Condens. Matter 13, 777 (2001), and we obtained a static dielectric constant of epsilon(0)=12.19+2.45x in the Si rich regime (xless than or equal to0.5).
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  • da Silva, A. F., et al. (författare)
  • Optical properties of oxide compounds PbO, SnO2 and TiO2
  • 2004
  • Ingår i: Physica Scripta. - 0031-8949 .- 1402-4896. ; T109, s. 180-183
  • Tidskriftsartikel (refereegranskat)abstract
    • The optical properties of the oxide compounds PbO and SnO2 have been investigated experimentally by transmission spectroscopy measurements and theoretically by a full-potential linearized augmented plane wave (FPLAPW) method. The dielectric functions of the rutile TiO2 has also been calculated. The calculated band-gap energies as well as the optical absorption were found to be in a very good qualitatively agreement with the experimental results.
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  • Resultat 1-8 av 8

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