2022-09-082022-09-082010-04Kaya, Y. vd. (2010). "Determination and analysis of dispersive optical constants of some organic thin films". Journal of Optoelectronics and Advanced Materials, 12(4), 948-952.1454-41641841-7132https://www.osti.gov/etdeweb/biblio/21517352http://hdl.handle.net/11452/28549The optical behaviour of the complexes of (2E)-3-aza-1-(hydroxyimino)-2,4-diphenylpent-2-ene (HL) was investigated by optical reflectance and transmittance measurements. The optical constants (refractive index, n; extinction coefficient, k and dielectric constant, e) of some organic thin films were determined using reflectance and transmittance spectra. The optical absorption studies show that the transition is direct with band gap energy values, which are calculated. Analysis of the basis absorption spectra was also carried out to determine optical band gap (E-g) and Urbach parameter (E-o). The analysis of the optical absorption data revealed optical direct transition with band gaps of 3.7-3.9 eV. A surface observation of these thin films was also carried out by an Atomic Force Microscope.eninfo:eu-repo/semantics/closedAccessOptical band gapsUrbach parameterAtomic force microscopeMaterials scienceOpticsPhysicsEnergy gapLight absorptionOptical constantsReflectionRefractive indexExtinction coefficientsOptical absorption studiesOptical reflectanceOrganic thin filmsSurface observationTransmittance measurementsTransmittance spectraArticle0002783305000332-s2.0-77952083090948952124Materials science, multidisciplinaryOpticsPhysics, appliedX-Ray Diffraction; Benzo(H)Quinoline; Chemical Equilibrium