Synthesis, optical properties, and microstructure of semiconductor nanocrystals formed by ion implantation

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High-dose ion implantation, followed by annealing, has been shown to provide a versatile technique for creating semiconductor nanocrystals encapsulated in the surface region of a substrate material. The authors have successfully formed nanocrystalline precipitates from groups IV (Si, Ge, SiGe), III-V (GaAs, InAs, GaP, InP, GaN), and II-VI (CdS, CdSe, CdS{sub x}Se{sub 1{minus}x}, CdTe, ZnS, ZnSe) in fused silica, Al{sub 2}O{sub 3} and Si substrates. Representative examples will be presented in order to illustrate the synthesis, microstructure, and optical properties of the nanostructured composite systems. The optical spectra reveal blue-shifts in good agreement with theoretical estimates of size-dependent quantum-confinement energies ... continued below

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12 p.

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Budai, J.D.; White, C.W.; Withrow, S.P.; Zuhr, R.A. & Zhu, J.G. December 1, 1996.

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Description

High-dose ion implantation, followed by annealing, has been shown to provide a versatile technique for creating semiconductor nanocrystals encapsulated in the surface region of a substrate material. The authors have successfully formed nanocrystalline precipitates from groups IV (Si, Ge, SiGe), III-V (GaAs, InAs, GaP, InP, GaN), and II-VI (CdS, CdSe, CdS{sub x}Se{sub 1{minus}x}, CdTe, ZnS, ZnSe) in fused silica, Al{sub 2}O{sub 3} and Si substrates. Representative examples will be presented in order to illustrate the synthesis, microstructure, and optical properties of the nanostructured composite systems. The optical spectra reveal blue-shifts in good agreement with theoretical estimates of size-dependent quantum-confinement energies of electrons and holes. When formed in crystalline substrates, the nanocrystal lattice structure and orientation can be reproducibly controlled by adjusting the implantation conditions.

Physical Description

12 p.

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INIS; OSTI as DE97001646

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  • 1996 Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 2-6 Dec 1996

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  • Other: DE97001646
  • Report No.: CONF-961202--14
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/425296 | External Link
  • Office of Scientific & Technical Information Report Number: 425296
  • Archival Resource Key: ark:/67531/metadc678639

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  • December 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 21, 2016, 12:46 p.m.

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Budai, J.D.; White, C.W.; Withrow, S.P.; Zuhr, R.A. & Zhu, J.G. Synthesis, optical properties, and microstructure of semiconductor nanocrystals formed by ion implantation, report, December 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc678639/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.