scholarly journals Infrared optical properties of MgxZn1−xO thin films (0⩽x⩽1): Long-wavelength optical phonons and dielectric constants

2006 ◽  
Vol 99 (11) ◽  
pp. 113504 ◽  
Author(s):  
C. Bundesmann ◽  
A. Rahm ◽  
M. Lorenz ◽  
M. Grundmann ◽  
M. Schubert
2004 ◽  
Vol 78 (5) ◽  
pp. 757-760 ◽  
Author(s):  
Z. Hu ◽  
G. Wang ◽  
Z. Huang ◽  
X. Meng ◽  
Q. Zhao ◽  
...  

2009 ◽  
Vol 25 (08) ◽  
pp. 1523-1529
Author(s):  
LIANG Ji-Ran ◽  
◽  
◽  
HU Ming ◽  
WANG Xiao-Dong ◽  
...  

2001 ◽  
Vol 90 (6) ◽  
pp. 2699-2702 ◽  
Author(s):  
J. Yu ◽  
J. L. Sun ◽  
X. J. Meng ◽  
Z. M. Huang ◽  
J. H. Chu ◽  
...  

2015 ◽  
Vol 41 (1) ◽  
pp. 475-480 ◽  
Author(s):  
Hongguang Wang ◽  
Jinbao Xu ◽  
Chao Ma ◽  
Pengjun Zhao ◽  
Lei Wang ◽  
...  

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.


2000 ◽  
Vol 77 (22) ◽  
pp. 3651-3653 ◽  
Author(s):  
Zhiming Huang ◽  
Zhanhong Zhang ◽  
Chuping Jiang ◽  
Jian Yu ◽  
Jinlan Sun ◽  
...  

2019 ◽  
Vol 33 (05) ◽  
pp. 1950024 ◽  
Author(s):  
Fatma Meydaneri Tezel ◽  
İ. Afşin Kariper

In this study, zinc selenide (ZnSe) thin films were produced on glass substrate by using chemical bath deposition (CBD) method at 80[Formula: see text]C, from aqueous solutions of zinc sulphate and sodium selenosulphide, which were produced using solid selenium as the selenium source. The optical and structural properties of ZnSe thin films were investigated at room-temperature. The pH of the chemical bath, in which ZnSe thin films were immersed, were changed between pH:8–11. Optical properties of the films, including extinction coefficient, refractive index, reflectance, absorbance, transmittance, dielectric constants and optical density values were calculated using absorbance and transmittance measurements determined using a Hach Lange 500 spectrophotometer, in 300–1100 nm wavelength range. Optical bandgap values were obtained from transmittance and absorbance spectra ranged between 2.12 and 2.49 eV. According to XRD results, it was found that the films have polycrystalline structure and they exhibited different film thicknesses depending on phase and pH changes.


2002 ◽  
Vol 35 (3) ◽  
pp. 246-248 ◽  
Author(s):  
Zhiming Huang ◽  
Xiangjiang Meng ◽  
Zhanhong Zhang ◽  
Junhao Chu

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