Influence of size effect and sputtering conditions on the crystallinity and optical properties of ZnO thin films

Kapustianyk, V.; Turko, B.; Kostruba, А.; Sofiani, Z.; Derkowska, B.; Dabos‐Seignon, Sylvie; Barwiński, Bogdan; Eliyashevskyi, Yu.; Sahraoui, B.

doi:10.1016/j.optcom.2006.08.034

Cited by 63 publications

(20 citation statements)

References 13 publications

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“…Although dened ZnO nanostructures with different morphologies have been reported using a variety of procedures, [7][8][9][10][11][12]29 existing methods require either harsh conditions, complex procedures or long reaction times. In addition, although it is well-known that the presence of lattice defects plays a key role in the physical and chemical properties of ZnO nanostructures, 10,11 many questions still remain due to the lack of conclusive evidence for defects responsible for luminescence properties.…”

Section: -6mentioning

confidence: 99%

Correlation between structural and electronic order–disorder effects and optical properties in ZnO nanocrystals

et al. 2014

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The correlation between structural and electronic order-disorder effects in understanding the optical properties of flower-like ZnO nanocrystals synthesized by the microwave-assisted hydrothermal method at low temperatures and short times is discussed. Theoretical simulations were performed at the density functional theory level to gain a better understanding of the experimental data from X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), electron paramagnetic resonance (EPR), ultraviolet-visible diffuse reflectance (UV-vis) spectroscopy and photoluminescence (PL) measurement studies at different temperatures. The decrease in band gap values is due to the presence of intermediate states above the conduction band. These discrete levels are formed by structural and electronic disorder of tetrahedral [ZnO 4 ] clusters which enhance the electron-hole pair.

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Section: -6mentioning

confidence: 99%

Correlation between structural and electronic order–disorder effects and optical properties in ZnO nanocrystals

et al. 2014

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“…In recent years, ZnO thin films has reached an important place in new technologies, and shows a wide range of scientific and technological applications (El Hichou et al 2002;Bahedi et al 2007;Dabos-Seignon et al 2007). ZnO thin film is used in the fabrication of solar cells (Lin et al 2007), gas sensors (Lim et al 2006) and catalysers (Miki-Yoshida et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Structural, optical and electrical properties of ZnO:Al thin films for optoelectronic applications

et al. 2013

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Undoped and aluminum-doped ZnO thin films are prepared by the sol-gel spincoating process. Zinc acetate dihydrate, ethanol and mono-ethanolamine are used as precursor, solvent and stabilizer, respectively. The atomic percentage of dopant in solution were [Al/Zn] = 1 %, 2 % and 3 %. The effect of Al doping on the optical and electrical properties of ZnO films was investigated by X-ray diffraction (XRD), Four-Point probe technique and UV-visible spectrophotometery. The results from the X-ray diffraction show that the pure ZnO thin films had a polycrystalline structure of the hexagonal Wurtzite Type. A minimum resistivity of 3.3 × 10 −3 · cm was obtained for the film doped with 2 mol % Al. Optical transmissions reveal a good transmittance within the visible wavelength spectrum region for all of the films. The value of the band gap is enhanced from 3.21 eV (undoped ZnO) to 3.273 eV (Al/Zn = 3 %), the increase in the band gap can be explained by the Burstein-Moss effect.

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“…Thin film ZnO samples were deposited by radio-frequency (rf) sputtering from a ZnO target [3] in the argon atmosphere with working gas pressure 10 -3 Torr, under sputtering power of 100 W without substrate heating. The distance between substrate and target was about 60 mm.…”

Section: Methodsmentioning

confidence: 99%

CHARACTERISTICS OF GAS SENSORS BASED ON ZnO OF DIFFERENT DIMENSIONS

Лубочкова

Станько

Turko

et al. 2013

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Abstract. Sensor's sensitivity dependence for samples based on ZnO thin film, micro-and nanostructures on their active area was investigated under the influence of ethanol, ammonia and acetone vapors. The impact of the morphology type and the size effects on the main characteristics of the ZnO resistive sensor elements was studied. For the first time the nanostructures of ZnO with a p-type conductivity have been fabricated by electrodeposition in the water solution.

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Influence of size effect and sputtering conditions on the crystallinity and optical properties of ZnO thin films

Cited by 63 publications

References 13 publications

Correlation between structural and electronic order–disorder effects and optical properties in ZnO nanocrystals

Correlation between structural and electronic order–disorder effects and optical properties in ZnO nanocrystals

Structural, optical and electrical properties of ZnO:Al thin films for optoelectronic applications

CHARACTERISTICS OF GAS SENSORS BASED ON ZnO OF DIFFERENT DIMENSIONS

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