Synthesis and properties of GaAs nanocrystals in SiO{sub 2} formed by ion implantation

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GaAs nanocrystals have been formed by sequential ion implantation. Sequence of Ga and As ion implantation (ie, Ga + As or As + Ga) is found to affect the size distributions of GaAs nanocrystals significantly. Nanocrystal sizes are much bigger in the samples with Ga implanted first than those with As implanted first. This phenomenon is explained by the different diffusion behaviors of Ga and As species. Different precipitate regions have been observed in the samples implanted with Ga first and then As. Optical absorption measurements show that Ga particles have already formed in the as-implanted stage.

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7 p.

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Zhu, J.G.; White, C.W.; Budai, J.D.; Withrow, S.P.; Wallis, D.J. & Henderson, D.O. December 1, 1995.

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Description

GaAs nanocrystals have been formed by sequential ion implantation. Sequence of Ga and As ion implantation (ie, Ga + As or As + Ga) is found to affect the size distributions of GaAs nanocrystals significantly. Nanocrystal sizes are much bigger in the samples with Ga implanted first than those with As implanted first. This phenomenon is explained by the different diffusion behaviors of Ga and As species. Different precipitate regions have been observed in the samples implanted with Ga first and then As. Optical absorption measurements show that Ga particles have already formed in the as-implanted stage.

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7 p.

Notes

OSTI as DE96008689

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  • Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 27 Nov - 1 Dec 1995

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  • Other: DE96008689
  • Report No.: CONF-951155--99
  • Grant Number: AC05-84OR21400;FG05-94ER45521
  • Office of Scientific & Technical Information Report Number: 215782
  • Archival Resource Key: ark:/67531/metadc670436

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  • December 1, 1995

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  • June 29, 2015, 9:42 p.m.

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  • May 2, 2016, 4:15 p.m.

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Zhu, J.G.; White, C.W.; Budai, J.D.; Withrow, S.P.; Wallis, D.J. & Henderson, D.O. Synthesis and properties of GaAs nanocrystals in SiO{sub 2} formed by ion implantation, article, December 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc670436/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.