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Influence of zinc concentration on band gap and sub-band gap absorption on ZnO nanocrystalline thin films sol-gel grown

Munirah,

Munirah,

Laser Spectroscopy Lab., Department of Physics, Jamia Millia IslamiaNew Delhi, India
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Munirah,
, 
Ziaul Raza Khan

Ziaul Raza Khan

Department of Physics, College of Science, University of HailHail, Saudi Arabia
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Khan, Ziaul Raza
, 
Anver Aziz

Anver Aziz

Laser Spectroscopy Lab., Department of Physics, Jamia Millia IslamiaNew Delhi, India
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Aziz, Anver
, 
Mohd. Shahid Khan

Mohd. Shahid Khan

Laser Spectroscopy Lab., Department of Physics, Jamia Millia IslamiaNew Delhi, India
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Khan, Mohd. Shahid
 und 
M.U. Khandaker

M.U. Khandaker

Department of Physics, Faculty of Science, University of MalayaKuala Lumpur, Malaysia
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Khandaker, M.U.
  
24. Feb. 2017
Influence of zinc concentration on band gap and sub-band gap absorption on ZnO nanocrystalline thin films sol-gel grown's Cover Image
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Online veröffentlicht: 24. Feb. 2017
Seitenbereich: 246 - 253
Eingereicht: 15. März 2016
Akzeptiert: 06. Feb. 2017
DOI: https://doi.org/10.1515/msp-2017-0039
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© 2017 Munirah, Ziaul Raza Khan, Anver Aziz, Mohd. Shahid Khan, M.U. Khandaker
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Flow chart of preparation of ZnO thin films.
Flow chart of preparation of ZnO thin films.
(a) Schematic diagram of PDS setup, (b) the interface geometry of the pump and probe beam.
(a) Schematic diagram of PDS setup, (b) the interface geometry of the pump and probe beam.
XRD pattern of ZnO thin films with different zinc molar concentrations.
XRD pattern of ZnO thin films with different zinc molar concentrations.
(a) SEM micrographs of ZnO thin films with different zinc molar concentrations, (b) EDX spectra of ZnO thin films.
(a) SEM micrographs of ZnO thin films with different zinc molar concentrations, (b) EDX spectra of ZnO thin films.
FT-IR spectra of ZnO thin films with different zinc concentrations.
FT-IR spectra of ZnO thin films with different zinc concentrations.
Absorbance spectra of ZnO thin films with different zinc concentrations.
Absorbance spectra of ZnO thin films with different zinc concentrations.
Absorption coefficients of ZnO thin films with different zinc concentrations.
Absorption coefficients of ZnO thin films with different zinc concentrations.
Tauc’s plots of ZnO thin films with different zinc concentrations.
Tauc’s plots of ZnO thin films with different zinc concentrations.
Absorption coefficients α of ZnO thin thin films with different zinc concentrations (from PDS) as a function of photon energy in the energy range of 1.5 eV to 3.3 eV.
Absorption coefficients α of ZnO thin thin films with different zinc concentrations (from PDS) as a function of photon energy in the energy range of 1.5 eV to 3.3 eV.
Photoluminescence spectra of ZnO thin films grown from different zinc concentration sols.
Photoluminescence spectra of ZnO thin films grown from different zinc concentration sols.

Structural parameters, thickness and band gap of ZnO thin films with different zinc acetate concentrations_

Zinc acetateGrowthCrystalliteThicknessBand
concentrationplanesize [nm][nm]gap [eV]
 0.35 M(1 0 0)301903.31
0.65 M(1 0 0)352503.24
0.95 M(1 0 0)513003.18
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Materialwissenschaft, Materialwissenschaft, andere, Nanomaterialien, Funktionelle und Intelligente Materialien, Charakterisierung und Eigenschaften von Materialien
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