View in EDS PDF Full Text

Continuous gas-phase synthesis of nanowires with tunable properties.

Saved in:
Bibliographic Details
Title: Continuous gas-phase synthesis of nanowires with tunable properties.
Authors: Heurlin, Magnus, Magnusson, Martin H., Lindgren, David, Ek, Martin, Wallenberg, L. Reine, Deppert, Knut, Samuelson, Lars
Source: Nature. 12/6/2012, Vol. 492 Issue 7427, p90-94. 5p. 1 Color Photograph, 1 Black and White Photograph, 2 Graphs.
Subjects: Gas phase reactions, Synthesis of nanowires, Light emitting diodes, Solar cells, Crystallinity
Abstract: Semiconductor nanowires are key building blocks for the next generation of light-emitting diodes, solar cells and batteries. To fabricate functional nanowire-based devices on an industrial scale requires an efficient methodology that enables the mass production of nanowires with perfect crystallinity, reproducible and controlled dimensions and material composition, and low cost. So far there have been no reports of reliable methods that can satisfy all of these requirements. Here we show how aerotaxy, an aerosol-based growth method, can be used to grow nanowires continuously with controlled nanoscale dimensions, a high degree of crystallinity and at a remarkable growth rate. In our aerotaxy approach, catalytic size-selected Au aerosol particles induce nucleation and growth of GaAs nanowires with a growth rate of about 1?micrometre per second, which is 20 to 1,000 times higher than previously reported for traditional, substrate-based growth of nanowires made of group III-V materials. We demonstrate that the method allows sensitive and reproducible control of the nanowire dimensions and shape-and, thus, controlled optical and electronic properties-through the variation of growth temperature, time and Au particle size. Photoluminescence measurements reveal that even as-grown nanowires have good optical properties and excellent spectral uniformity. Detailed transmission electron microscopy investigations show that our aerotaxy-grown nanowires form along one of the four equivalent ?111?B crystallographic directions in the zincblende unit cell, which is also the preferred growth direction for III-V nanowires seeded by Au particles on a single-crystal substrate. The reported continuous and potentially high-throughput method can be expected substantially to reduce the cost of producing high-quality nanowires and may enable the low-cost fabrication of nanowire-based devices on an industrial scale. [ABSTRACT FROM AUTHOR]
Copyright of Nature is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 83859497
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Continuous gas-phase synthesis of nanowires with tunable properties.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Heurlin%2C+Magnus%22">Heurlin, Magnus</searchLink><br /><searchLink fieldCode="AR" term="%22Magnusson%2C+Martin+H%2E%22">Magnusson, Martin H.</searchLink><br /><searchLink fieldCode="AR" term="%22Lindgren%2C+David%22">Lindgren, David</searchLink><br /><searchLink fieldCode="AR" term="%22Ek%2C+Martin%22">Ek, Martin</searchLink><br /><searchLink fieldCode="AR" term="%22Wallenberg%2C+L%2E+Reine%22">Wallenberg, L. Reine</searchLink><br /><searchLink fieldCode="AR" term="%22Deppert%2C+Knut%22">Deppert, Knut</searchLink><br /><searchLink fieldCode="AR" term="%22Samuelson%2C+Lars%22">Samuelson, Lars</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Nature%22">Nature</searchLink>. 12/6/2012, Vol. 492 Issue 7427, p90-94. 5p. 1 Color Photograph, 1 Black and White Photograph, 2 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Gas+phase+reactions%22">Gas phase reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Synthesis+of+nanowires%22">Synthesis of nanowires</searchLink><br /><searchLink fieldCode="DE" term="%22Light+emitting+diodes%22">Light emitting diodes</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+cells%22">Solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Crystallinity%22">Crystallinity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Semiconductor nanowires are key building blocks for the next generation of light-emitting diodes, solar cells and batteries. To fabricate functional nanowire-based devices on an industrial scale requires an efficient methodology that enables the mass production of nanowires with perfect crystallinity, reproducible and controlled dimensions and material composition, and low cost. So far there have been no reports of reliable methods that can satisfy all of these requirements. Here we show how aerotaxy, an aerosol-based growth method, can be used to grow nanowires continuously with controlled nanoscale dimensions, a high degree of crystallinity and at a remarkable growth rate. In our aerotaxy approach, catalytic size-selected Au aerosol particles induce nucleation and growth of GaAs nanowires with a growth rate of about 1?micrometre per second, which is 20 to 1,000 times higher than previously reported for traditional, substrate-based growth of nanowires made of group III-V materials. We demonstrate that the method allows sensitive and reproducible control of the nanowire dimensions and shape-and, thus, controlled optical and electronic properties-through the variation of growth temperature, time and Au particle size. Photoluminescence measurements reveal that even as-grown nanowires have good optical properties and excellent spectral uniformity. Detailed transmission electron microscopy investigations show that our aerotaxy-grown nanowires form along one of the four equivalent ?111?B crystallographic directions in the zincblende unit cell, which is also the preferred growth direction for III-V nanowires seeded by Au particles on a single-crystal substrate. The reported continuous and potentially high-throughput method can be expected substantially to reduce the cost of producing high-quality nanowires and may enable the low-cost fabrication of nanowire-based devices on an industrial scale. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nature is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=83859497
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1038/nature11652
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 5
        StartPage: 90
    Subjects:
      – SubjectFull: Gas phase reactions
        Type: general
      – SubjectFull: Synthesis of nanowires
        Type: general
      – SubjectFull: Light emitting diodes
        Type: general
      – SubjectFull: Solar cells
        Type: general
      – SubjectFull: Crystallinity
        Type: general
    Titles:
      – TitleFull: Continuous gas-phase synthesis of nanowires with tunable properties.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Heurlin, Magnus
      – PersonEntity:
          Name:
            NameFull: Magnusson, Martin H.
      – PersonEntity:
          Name:
            NameFull: Lindgren, David
      – PersonEntity:
          Name:
            NameFull: Ek, Martin
      – PersonEntity:
          Name:
            NameFull: Wallenberg, L. Reine
      – PersonEntity:
          Name:
            NameFull: Deppert, Knut
      – PersonEntity:
          Name:
            NameFull: Samuelson, Lars
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 06
              M: 12
              Text: 12/6/2012
              Type: published
              Y: 2012
          Identifiers:
            – Type: issn-print
              Value: 00280836
          Numbering:
            – Type: volume
              Value: 492
            – Type: issue
              Value: 7427
          Titles:
            – TitleFull: Nature
              Type: main
ResultId 1