Growth of linearly ordered arrays of InAs nanocrystals on scratched InP

H. D. Fonseca-Filho, C. M. Almeida, R. Prioli, M. P. Pires, P. L. Souza, Z. H. Wu, Q. Y. Wei, Fernando Ponce

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Linear arrays of InAs nanocrystals have been produced by metalorganic vapor phase epitaxy on scratches performed with an atomic force microscope tip along specific crystallographic directions of an (100) InP wafer. Scratches along 〈 110 〉 generate highly mobile defects that extend far from the scratch region along easy-glide directions. On the other hand, 〈 100 〉 scratches result in highly-localized plastic deformation, hardening, and possibly frictional heating. In both cases, growth of nanocrystals was observed only on the scratched areas. Random nucleation of nanocrystals is observed along 〈 110 〉 scratches, while linearly ordered growth occur along 〈 100 〉 scratches. We attribute these observations to the delocalized nature of the dislocations in the 〈 110 〉 case, giving the appearance of random nucleation, while highly localized crystal defects along the 〈 100 〉 scratch lines act as nucleation sites for the growth of linear arrays of nanocrystals.

Original languageEnglish (US)
Article number054313
JournalJournal of Applied Physics
Volume107
Issue number5
DOIs
StatePublished - 2010

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nanocrystals
nucleation
linear arrays
vapor phase epitaxy
crystal defects
hardening
plastic deformation
microscopes
wafers
heating
defects

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fonseca-Filho, H. D., Almeida, C. M., Prioli, R., Pires, M. P., Souza, P. L., Wu, Z. H., ... Ponce, F. (2010). Growth of linearly ordered arrays of InAs nanocrystals on scratched InP. Journal of Applied Physics, 107(5), [054313]. https://doi.org/10.1063/1.3309836

Growth of linearly ordered arrays of InAs nanocrystals on scratched InP. / Fonseca-Filho, H. D.; Almeida, C. M.; Prioli, R.; Pires, M. P.; Souza, P. L.; Wu, Z. H.; Wei, Q. Y.; Ponce, Fernando.

In: Journal of Applied Physics, Vol. 107, No. 5, 054313, 2010.

Research output: Contribution to journalArticle

Fonseca-Filho, HD, Almeida, CM, Prioli, R, Pires, MP, Souza, PL, Wu, ZH, Wei, QY & Ponce, F 2010, 'Growth of linearly ordered arrays of InAs nanocrystals on scratched InP', Journal of Applied Physics, vol. 107, no. 5, 054313. https://doi.org/10.1063/1.3309836
Fonseca-Filho HD, Almeida CM, Prioli R, Pires MP, Souza PL, Wu ZH et al. Growth of linearly ordered arrays of InAs nanocrystals on scratched InP. Journal of Applied Physics. 2010;107(5). 054313. https://doi.org/10.1063/1.3309836
Fonseca-Filho, H. D. ; Almeida, C. M. ; Prioli, R. ; Pires, M. P. ; Souza, P. L. ; Wu, Z. H. ; Wei, Q. Y. ; Ponce, Fernando. / Growth of linearly ordered arrays of InAs nanocrystals on scratched InP. In: Journal of Applied Physics. 2010 ; Vol. 107, No. 5.
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