Nano-structural characteristics and optical properties of silver chiral nano-flower sculptured thin films

2011 ◽  
Vol 257 (21) ◽  
pp. 9044-9055 ◽  
Author(s):  
Hadi Savaloni ◽  
Fatemh Haydari-Nasab ◽  
Mariam Malmir
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Structural Characteristics ◽  
Sculptured Thin Films

Ultraviolet optical properties and structural characteristics of radio frequency-deposited HfO2 thin films

2018 ◽  
Vol 31 (6) ◽  
pp. 813-817
Author(s):  
Cun-zhi Sun ◽  
Rong-dun Hong ◽  
Xia-ping Chen ◽  
Jia-fa Cai ◽  
Zheng-yun Wu
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Radio Frequency ◽  
Structural Characteristics

Synthesis and Characterization of Nanocrystalline Ba-doped Mn3O4 Hausmannite Thin Films for Optoelectronic Applications

2021 ◽  
Author(s):  
Aus A. Najim ◽  
Kadhim R. Gbashi ◽  
Ammar T. Salih
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Structural Characteristics ◽  
Optical Transmittance ◽  
Degree Of Crystallinity ◽  
Chemical Spray Pyrolysis ◽  
X Ray Diffraction ◽  
Glass Substrates ◽  
The Impact

In the present work, nanocrystalline hausmannite Mn3O4:Ba thin films have been deposited on glass substrates by chemical spray pyrolysis (CSP). Then, we investigated the impact of Ba doping concentrations on the structural, morphological and optical properties. The structural characteristics were investigated by X-ray diffraction technique and clearly show the films have a spinel Mn3O4 polycrystalline structure, the degree of crystallinity was improved by increasing Ba concentrations in Mn3O4 matrix with crystallite size range of 15–33[Formula: see text]nm. The lattice parameters, the unit cell volume and the (Mn-O) bond length of tetrahedral and octahedral sites, were varied by increasing Ba concentrations. SEM micrographs show that the films are homogeneous with nanoparticles dispersed on the surface with sizes range 30–132[Formula: see text]nm. The optical properties were estimated by UV-Vis-NIR spectrophotometer and exhibited that the optical transmittance and band gap were improved by increasing Ba doping concentration. Empirical equations were suggested to estimate some correlated variables with excellent agreement with the experimental data. The optimum condition was recorded in films doped with 3% of Ba where a better crystallinity, a preferable surface morphology and outstanding optical properties have been achieved.

Electroplated CuO Thin Films from High Alkaline Solutions

2011 ◽  
Vol 15 (1) ◽  
pp. 49-55
Author(s):  
V. Dhanasekaran ◽  
T. Mahalingam ◽  
S. Rajendran ◽  
Jin Koo Rhee ◽  
D. Eapen
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Film Thickness ◽  
Structural Characteristics ◽  
Band Gap Energy ◽  
Alkaline Solutions ◽  
X Ray Diffraction ◽  
Force Microscopy ◽  
Microstructural Parameters ◽  
Atomic Force

CuO thin films were coated on ITO substrates by an electrodeposition route through potentiostatic mode. The electrodeposited CuO thin films were characterized and the role of copper sulphate concentration on the structural, morphological and optical properties of the CuO films was studied. Film thickness was measured by a stylus profilometer and found to be in the range between 800 and 1400 nm. The structural characteristics studies were carried out using X-ray diffraction and found that the films are polycrystalline in nature with a cubic structure. The preferential orientation of CuO thin films is found to be along (111) plane. The estimated microstructural parameters revealed that the crystallite size increases whereas the number of crystallites per unit area decreases with increasing film thickness. SEM studies show that the grain sizes of CuO thin films vary between 100 and 150 nm and also morphologies revealed that the electrodeposited CuO exhibits uniformity in size and shape. The surface roughness is estimated 15 nm of the CuO film were studied by atomic force microscopy. Optical properties of the films were analyzed from absorption and transmittance studies. The optical band gap energy was determined to be 1.5 eV from absorption coefficient. The variation of refractive index (n), extinction coefficient (k), with wavelength was studied and the results are discussed.

Effects of Annealing on Microstructure and Optical Properties of TiO 2 Sculptured Thin Films

2008 ◽  
Vol 25 (6) ◽  
pp. 2181-2184 ◽  
Author(s):  
Xiao Xiu-Di ◽  
Dong Guo-Ping ◽  
Qi Hong-Ji ◽  
Fan Zheng-Xiu ◽  
He Hong-Bo ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sculptured Thin Films

Optical properties of hybrid titanium chevron sculptured thin films coated with a semiconducting polymer

2011 ◽  
Vol 519 (9) ◽  
pp. 2645-2649 ◽  
Author(s):  
Daniel Schmidt ◽  
Christian Müller ◽  
Tino Hofmann ◽  
Olle Inganäs ◽  
Hans Arwin ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Semiconducting Polymer ◽  
Sculptured Thin Films
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