Spectroscopic ellipsometry investigations of the optical properties of manganese doped bismuth vanadate thin films

2010 ◽  
Vol 45 (4) ◽  
pp. 464-473 ◽  
Author(s):  
Neelam Kumari ◽  
S.B. Krupanidhi ◽  
K.B.R. Varma
2016 ◽  
Vol 4 (33) ◽  
pp. 7775-7782 ◽  
Author(s):  
Paul F. Ndione ◽  
Zhen Li ◽  
Kai Zhu

Spectroscopic ellipsometry analysis of optical transitions and optical constants in hybrid organic–inorganic perovskite alloys.


2020 ◽  
pp. 2050044
Author(s):  
SAHAR MORADI ◽  
HASSAN SEDGHI

Nanostructured Fe:SnO2 thin films were deposited on glass substrates through sol–gel spin coating method. Films were synthesized with different iron quantities including 0%, 4%, 8% and 12% (wt.%). The effects of Fe concentration on optical properties of films were investigated by spectroscopic ellipsometry (SE) technique. SE measured ([Formula: see text]) parameters for films in the wavelength range between 300[Formula: see text]nm to 800[Formula: see text]nm. Optical properties including the refractive index, extinction coefficient, transmittance, dielectric constants and optical conductivity were determined by fitting the SE measured ([Formula: see text]) parameters and data obtained from the optical model-based analysis. Results showed that the transmittance values increase by increment of Fe concentration from 0% to 12%. The bandgap energy ([Formula: see text] of prepared thin films was also calculated. [Formula: see text] values were between 3.44 and 3.58[Formula: see text]eV. Dispersion parameters including the high frequency dielectric constant ([Formula: see text] and the ratio of free carrier concentration to effective mass (N/m[Formula: see text] were then obtained for the prepared films.


2014 ◽  
Vol 571 ◽  
pp. 675-679 ◽  
Author(s):  
C.C. Shen ◽  
C.C. Tseng ◽  
C.T. Lin ◽  
L.J. Li ◽  
H.L. Liu

2008 ◽  
Vol 370 (1) ◽  
pp. 126-131 ◽  
Author(s):  
D. Chvostová ◽  
V. Železný ◽  
L. Pajasová ◽  
D. Šimek ◽  
M. Jelínek ◽  
...  

2019 ◽  
Vol 26 (03) ◽  
pp. 1850158 ◽  
Author(s):  
MARYAM MOTALLEBI AGHGONBAD ◽  
HASSAN SEDGHI

Zinc Oxide thin films were deposited on glass substrates by sol–gel spin coating method. Zinc acetate dihydrate, 2-methoxyethanol and monoethanolamine were used as precursor, solvent and stabilizer, respectively. Zinc acetate dihydrate was used with different molar concentrations of 0.15, 0.25 and 0.5 M. Optical properties of ZnO thin films such as dielectric constants, absorption coefficient, Urbach energy and optical band gap energy were calculated by spectroscopic ellipsometry (SE) method. The effect of zinc acetate concentration on optical properties of ZnO thin films is investigated. ZnO thin film with Zn concentration of 0.25 M had the highest optical band gap. Wemple DiDomenico oscillator model was used for calculation of the energy of effective dispersion oscillator, the dispersion energy, the high frequency dielectric constant, the long wavelength refractive index and the free carrier concentration.


2017 ◽  
Vol 421 ◽  
pp. 884-890 ◽  
Author(s):  
Dahai Li ◽  
Xiongfei Song ◽  
Jiping Xu ◽  
Ziyi Wang ◽  
Rongjun Zhang ◽  
...  

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