Synthesis and optical properties of II-O-VI highly mismatched alloys

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We have synthesized ternary and quaternary diluted II-VI oxides using the combination of O ion implantation and pulsed laser melting. CdO{sub x}Te{sub 1-x} thin films with x up to 0.015, and the energy gap reduced by 150 meV were formed by O{sup +}-implantation in CdTe followed by pulsed laser melting. Quaternary Cd{sub 0.6}Mn{sub 0.4}O{sub x}Te{sub 1-x} and Zn{sub 0.88}Mn{sub 0.12}O{sub x}Te{sub 1-x} with mole fraction of incorporated O as high as 0.03 were also formed. The enhanced O incorporation in Mn-containing alloys is believed to be due to the formation of relatively strong Mn-O bonds. Optical transitions associated with the ... continued below

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31 pages

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Yu, K.M.; Walukiewicz, W.; Shan, W.; Wu, J.; Beeman, J.W.; Scarpulla, M.A. et al. January 20, 2004.

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We have synthesized ternary and quaternary diluted II-VI oxides using the combination of O ion implantation and pulsed laser melting. CdO{sub x}Te{sub 1-x} thin films with x up to 0.015, and the energy gap reduced by 150 meV were formed by O{sup +}-implantation in CdTe followed by pulsed laser melting. Quaternary Cd{sub 0.6}Mn{sub 0.4}O{sub x}Te{sub 1-x} and Zn{sub 0.88}Mn{sub 0.12}O{sub x}Te{sub 1-x} with mole fraction of incorporated O as high as 0.03 were also formed. The enhanced O incorporation in Mn-containing alloys is believed to be due to the formation of relatively strong Mn-O bonds. Optical transitions associated with the lower (E{sub -}) and upper (E{sub +}) conduction subbands resulting from the anticrossing interaction between the localized O states and the extended conduction states of the host are clearly observed in these quaternary diluted II-VI oxides. These alloys fulfill the criteria for a multiband semiconductor that has been proposed as a material for making high efficiency, single-junction solar cells.

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31 pages

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OSTI as DE00836378

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  • Journal Name: Journal of Applied Physics; Journal Volume: 95; Journal Issue: 11 pt 1; Other Information: Submitted to Journal of Applied Physics: Volume 95, No.11, Part 1; Journal Publication Date: 06/01/2004

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  • Report No.: LBNL--54361
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 836378
  • Archival Resource Key: ark:/67531/metadc786982

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  • January 20, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • June 15, 2016, 1:08 p.m.

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Yu, K.M.; Walukiewicz, W.; Shan, W.; Wu, J.; Beeman, J.W.; Scarpulla, M.A. et al. Synthesis and optical properties of II-O-VI highly mismatched alloys, article, January 20, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc786982/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.