RT journal article
T1 Hybrid Dispersion Model Characterization of PAZO Azopolymer Thin Films over the Entire Transmittance Spectrum Measured in the UV/VIS/NIR Spectral Region
A1 Minkov, Dorian
A1 Nedelchev, Lian
A1 Angelov, George
A1 Márquez Navarro, Emilio José
A1 Blagoeva, Blaga
A1 Mateev, Georgi
A1 Nazarova, Dimana
A2 Física de la Materia Condensada
K1 innovative dispersion model
K1 PAZO polymer
K1 thin film
K1 optical characterizatics
K1 UV/VIS/NIR transmittance spectra
AB Notwithstanding the significant optical applicability of PAZO polymer films, there are noaccurate data about their optical characteristics. To remedy this shortcoming, in this study threePAZO polymer thin films are characterized, with dissimilar thicknesses, on glass substrates usingonly one UV/VIS/NIR transmittance spectrum T(l) per sample and an original hybrid dispersionmodel (HDM). HDM is based on the Tauc–Lorentz model, the new amorphous dispersion formula,the Tauc–Lorentz–Urbach model of Foldyna and the Tauc–Lorentz–Urbach model of Rodriguez.HDM with two oscillators is employed in characterizations of the PAZO polymer films in the range[300, 2500] nm, whereby the root-mean-square deviation (RMSD) of the fitted transmittance spectrumwith respect to T(l) does not exceed 1.6   10�����3. Decreasing RMSD by 2.3% to 94.4% is demonstratedby employing HDM compared with the above mentioned four popular dispersion models, for eachone of the studied films. HDM is applicable to amorphous films independent of their thickness aswell as to cases of non-transparent substrate.
PB MDPI
SN 1996-1944
YR 2022
FD 2022
LK http://hdl.handle.net/10498/32042
UL http://hdl.handle.net/10498/32042
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-nov-2026