scholarly journals DFT + U calculations for electronic, structural, and optical properties of ZnO wurtzite structure: A review

2020 ◽  
Vol 16 ◽  
pp. 102829 ◽  
Author(s):  
Kausar Harun ◽  
Nor Azmira Salleh ◽  
Bahri Deghfel ◽  
Muhamad Kamil Yaakob ◽  
Ahmad Azmin Mohamad
Keyword(s):  
Optical Properties ◽  
Wurtzite Structure ◽  
Structural And Optical Properties

scholarly journals Influence of aluminium concentration in Zn0:9V0:1O nanoparticles on structural and optical properties

2015 ◽  
Vol 33 (1) ◽  
pp. 198-204 ◽  
Author(s):  
A. Sayari ◽  
L. El Mir ◽  
S. Al-Heniti ◽  
T. Al-Harbi ◽  
S. J. Yaghmour ◽  
...  
Keyword(s):  
Optical Properties ◽  
Sol Gel ◽  
Wurtzite Structure ◽  
Gravimetric Analysis ◽  
Structural And Optical Properties ◽  
Al Content ◽  
Crystallite Sizes ◽  
Direct Band ◽  
Agglomeration Of Nanoparticles ◽  
Xrd Patterns

AbstractThe (V,Al) co-doped ZnO nano-structured powders (Zn0.9-xV0.1AlxO, where x = 0.02, 0.03 and 0.04) were synthesized via the sol-gel technique and their structural and optical properties were investigated. The effect of Al concentration on the structural and optical properties of the Zn0.9-xV0.1AlxO nanopowders was studied using various techniques. The XRD patterns indicate that the samples have a polycrystalline wurtzite structure. The crystallite size increases with increasing the Al content and lies in the range of 23 to 30 nm. The lattice strain, estimated by the Stokes-Wilson equation, decreases when Al content increases. SEM and TEM micrographs show that Zn0.9-xV0.1AlxO powders are the agglomeration of nanoparticles having spherical and hexagonal shapes with dimensions ranging from 20 to 30 nm. FT-IR spectra show a distinct absorption peak at about 500 cm-1 for ZnO stretching modes and other peaks related to OH and H2O bands. Raman spectra confirm the wurtzite structure of the Zn0.9-xV0.1AlxO nanoparticles. The direct band gaps of the synthesized Zn0.9-xV0.1AlxO nanopowders, estimated from the Brus equation and the crystallite sizes deduced from XRD, are around 3.308 eV. The decomposition process of the dried gel system was investigated by thermal gravimetric analysis (TGA).

Structural and Optical Properties of Cu2ZnSn(SxSe1–x)4 Thin Films

2018 ◽  
Vol 23 (3) ◽  
pp. 230-239
Author(s):  
E.P. Zaretskaya ◽  
◽  
V.F. Gremenok ◽  
A.V. Stanchik ◽  
A.N. Pyatlitski ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Structural And Optical Properties

Structural and optical properties of Tin Oxide and Indium doped SnO2 thin films deposited by thermal evaporation technique

2016 ◽  
Vol 12 (3) ◽  
pp. 4394-4399
Author(s):  
Sura Ali Noaman ◽  
Rashid Owaid Kadhim ◽  
Saleem Azara Hussain
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Tin Oxide ◽  
Thermal Evaporation ◽  
Pure Sno2 ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Evaporation Technique ◽  
Sno2 Thin Films

Tin Oxide and Indium doped Tin Oxide (SnO2:In) thin films were deposited on glass and Silicon  substrates  by  thermal evaporation technique.  X-ray diffraction pattern of  pure SnO2 and SnO2:In thin films annealed at 650oC and the results showed  that the structure have tetragonal phase with preferred orientation in (110) plane. AFM studies showed an inhibition of grain growth with increase in indium concentration. SEM studies of pure  SnO2 and  Indium doped tin oxide (SnO2:In) ) thin films showed that the films with regular distribution of particles and they have spherical shape.  Optical properties such as  Transmission , optical band-gap have been measured and calculated.

Morphological, Structural, and Optical Properties of Silicon Nanostructures Formed in a Solution Containing Hydrogen Hexafluorosilicate H2(SiF6)

2020 ◽  
Vol 128 (9) ◽  
pp. 1487-1491
Author(s):  
Sh. A. Zhumatova ◽  
S. M. Manakov ◽  
Ye. Sagidolda ◽  
M. B. Darmenkulova ◽  
R. M. Azamat ◽  
...  
Keyword(s):  
Optical Properties ◽  
Silicon Nanostructures ◽  
Structural And Optical Properties

Evolution of the Structural and Optical Properties of PbS Films upon Doping with Iron(II)

2020 ◽  
Vol 94 (12) ◽  
pp. 2428-2434
Author(s):  
I. V. Vaganova ◽  
E. V. Mostovshchikova ◽  
V. I. Voronin ◽  
N. A. Chufarova ◽  
A. D. Kutyavina ◽  
...  
Keyword(s):  
Optical Properties ◽  
Structural And Optical Properties
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