Optical switching of coherent VO{sub 2} precipitates embedded in sapphire

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Description

In this work, we report the formation of a new type of active or {open_quotes}smart{close_quote} surface that is produced by ion implantation and thermal processing. By co-implanting vanadium and oxygen into a single- crystal sapphire substrate and annealing the system under appropriate conditions, it was possible to form buried precipitates of vanadium dioxide that were crystallographically oriented with respect to the host Al{sub 2}O{sub 3} lattice. The implanted VO{sub 2} precipitate system undergoes a structural phase transition that is accompanied by large variations in the optical transmission which are comparable to those observed for thin films of VO{sub 2} deposited ... continued below

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6 p.

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Gea, L.A.; Boatner, L.A.; Budai, J.D. & Zuhr, R.A. December 31, 1995.

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Description

In this work, we report the formation of a new type of active or {open_quotes}smart{close_quote} surface that is produced by ion implantation and thermal processing. By co-implanting vanadium and oxygen into a single- crystal sapphire substrate and annealing the system under appropriate conditions, it was possible to form buried precipitates of vanadium dioxide that were crystallographically oriented with respect to the host Al{sub 2}O{sub 3} lattice. The implanted VO{sub 2} precipitate system undergoes a structural phase transition that is accompanied by large variations in the optical transmission which are comparable to those observed for thin films of VO{sub 2} deposited on sapphire. Co-implantation with oxygen was found to be necessary to ensure good optical switching behavior.

Physical Description

6 p.

Notes

OSTI as DE96005666

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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: DE96005666
  • Report No.: CONF-951155--36
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 196498
  • Archival Resource Key: ark:/67531/metadc665827

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Jan. 22, 2016, 12:59 p.m.

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Gea, L.A.; Boatner, L.A.; Budai, J.D. & Zuhr, R.A. Optical switching of coherent VO{sub 2} precipitates embedded in sapphire, article, December 31, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc665827/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.