The effect of film thickness on the optical absorption edge and optical constants of the Cr(III) organic thin films

Yakuphanoglu F., Sekerci M., Balaban A.

OPTICAL MATERIALS, cilt.27, sa.8, ss.1369-1372, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 8
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.optmat.2004.07.015
  • Dergi Adı: OPTICAL MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1369-1372
  • Anahtar Kelimeler: optical constants, optical band gap, thin film
  • Gazi Üniversitesi Adresli: Evet

Özet

The effect of film thickness on optical properties of the Cr(III) complex having 2-pyridincarbaldehye thiosemicarbazone thin films was investigated. The analyses of the optical absorption data revealed existence of direct and indirect transitions in the optical band gap. The optical constants (refractive index and dielectric constant) of the thin films were determined. The thickness of the films causes important changes in refractive index and real part-imaginary parts of the dielectric constant. The most significant result of the present study is to indicate that thickness of the film can be used to modify in the optical band gaps and optical constant of the thin films. (c) 2004 Elsevier B.V. All rights reserved.