The morphology and optical properties of Cr-doped ZnO films grown using the magnetron co-sputtering method

Hu, Y. M.; Chen, Y. T.; Zhong, Z. X.; Yu, Cheng Chia; Chen, G. J.; Huang, Ping; Chou, Wei‐Yang; Chang, Jow‐Ran; Wang, C. R.

doi:10.1016/j.apsusc.2007.12.014

Cited by 45 publications

(15 citation statements)

References 43 publications

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“…Extrapolations of the linear portions of the plots onto the energy axis were used to estimate the band gap values using this method and these analyses show an apparent decrease in E g decreases from 3.26 to 3.15 eV with an increase of Cr content from x = 0.00 to 4.63 at %. This result is in agreement with the results reported on Cr doped ZnO film prepared by other techniques showing a slight red shift in the band gap [35]. However, an opposite trend (a band gap increase) with increasing Cr content in ZnO samples was also predicted in the literature [36].…”

Section: Resultssupporting

confidence: 82%

Structural, optical and magnetic properties of Cr doped ZnO microrods prepared by spray pyrolysis method

Yılmaz

Parlak

Özcan

et al. 2011

Applied Surface Science

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A series of Cr-doped ZnO micro-rod arrays were fabricated by a spray pyrolysis method. X-ray diffraction patterns of the samples showed that the undoped and Cr-doped ZnO microrods exhibit hexagonal crystal structure. Surface morphology analysis of the samples has revealed that pure ZnO sample has a hexagonal microrod morphology.From X-ray photoelectron spectroscopy studies, the Cr 2p3/2 binding energy is found to be 577.34 eV indicating that the electron binding energy of the Cr in ZnO is almost the same as the binding energy of Cr 3+ states in Cr 2 O 3 .The optical band gap E g decreases slightly from 3.26 to 3.15 eV with the increase of actual Cr content from x = 0.00 to 4.63 at % in ZnO. Photoluminescence studies at 10 K show that the incorporation of chromium leads to a relative increase of deep level band intensity. It was also observed that Cr doped samples clearly showed ferromagnetic behavior; however, 2.49 % Cr doped ZnO showed remnant magnetization higher than that of 1.07 % and 4.63 % Cr doped samples, while 4.63 % Cr doped ZnO samples had a coercive field higher than the other dopings.

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Section: Resultssupporting

confidence: 82%

Structural, optical and magnetic properties of Cr doped ZnO microrods prepared by spray pyrolysis method

Yılmaz

Parlak

Özcan

et al. 2011

Applied Surface Science

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show abstract

“…But, by an increase in Cr dopant the distortion in ZnO crystallites increases due to exerting the dopant atoms into wurtzite structure of zinc oxide. Doped Cr 3+ atoms occupy the position of Zn 2+ in ZnO crystals and changes the lattice constants and consequently increase the lattice distortions [24].…”

Section: The Effect Of Annealing Temperature On Linear Optical Propermentioning

confidence: 99%

An investigation on linear optical properties of dilute Cr doped ZnO thin films synthesized via sol–gel process

Kandjani

Tabriz

Moradi

et al. 2011

Journal of Alloys and Compounds

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“…1b), which is a little smaller than that of the undoped ZnO. The result can be ascribed to the substitution of the Cr ions with a small ionic radius of 0.063 nm for Zn (0.074 nm) sites [20].…”

Section: Methodsmentioning

confidence: 96%

Effects of Cr-doping on the optical and magnetic properties in ZnO nanoparticles prepared by sol–gel method

Liu

Yang

Guan

et al. 2009

Journal of Alloys and Compounds

133

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The morphology and optical properties of Cr-doped ZnO films grown using the magnetron co-sputtering method

Cited by 45 publications

References 43 publications

Structural, optical and magnetic properties of Cr doped ZnO microrods prepared by spray pyrolysis method

Structural, optical and magnetic properties of Cr doped ZnO microrods prepared by spray pyrolysis method

An investigation on linear optical properties of dilute Cr doped ZnO thin films synthesized via sol–gel process

Effects of Cr-doping on the optical and magnetic properties in ZnO nanoparticles prepared by sol–gel method

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