Effect of oxygen on the electronic band structure in ZnO{sub x}Se{sub 1-x} alloys

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The effect of alloying small amounts of ZnO with ZnSe on the electronic band structure has been studied. Optical transitions in molecular-beam-epitaxy-grown ZnO{sub x}Se{sub 1-x} epitaxial films (0 {<=} x {<=} 1.35%) were investigated using photoreflectance and photoluminescence spectroscopies. The fundamental band-gap energy of the alloys was found to decrease at a rate of about 0.1 eV per atomic percent of oxygen. The pressure dependence of the band gap was also found to be strongly affected by O incorporation. Both the effects can be quantitatively explained by an anticrossing interaction between the extended states of the conduction band of ZnSe ... continued below

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page(s) 299-301

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Shan, W.; Walukiewicz, W.; Ager III, J.W.; Yu, K.M.; Wu, J.; Haller, E.E. et al. March 14, 2003.

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The effect of alloying small amounts of ZnO with ZnSe on the electronic band structure has been studied. Optical transitions in molecular-beam-epitaxy-grown ZnO{sub x}Se{sub 1-x} epitaxial films (0 {<=} x {<=} 1.35%) were investigated using photoreflectance and photoluminescence spectroscopies. The fundamental band-gap energy of the alloys was found to decrease at a rate of about 0.1 eV per atomic percent of oxygen. The pressure dependence of the band gap was also found to be strongly affected by O incorporation. Both the effects can be quantitatively explained by an anticrossing interaction between the extended states of the conduction band of ZnSe and the highly localized oxygen states located at approximately 0.22 eV above the conduction-band edge.

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page(s) 299-301

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  • Journal Name: Applied Physics Letters; Journal Volume: 83; Journal Issue: 2; Other Information: Journal Publication Date: July 14, 2003

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  • Report No.: LBNL--52356
  • Grant Number: AC03-76SF00098
  • DOI: 10.1063/1.1592885 | External Link
  • Office of Scientific & Technical Information Report Number: 815360
  • Archival Resource Key: ark:/67531/metadc740572

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  • March 14, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 4, 2016, 4:06 p.m.

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Shan, W.; Walukiewicz, W.; Ager III, J.W.; Yu, K.M.; Wu, J.; Haller, E.E. et al. Effect of oxygen on the electronic band structure in ZnO{sub x}Se{sub 1-x} alloys, article, March 14, 2003; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc740572/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.