Observation of quantum confined excited states of GaN nanocrystals

Valerie J. Leppert, Christina J. Zhang, Howard W H Lee, Ian M. Kennedy, Subhash H. Risbud

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

GaN nanocrystals with an average diameter of 4.5 nm±1.6 nm were synthesized by pulsed laser ablation of a gallium metal target in a nitrogen atmosphere. Transmission electron microscopy and selected area electron diffraction confirmed the hexagonal structure and size of the nanocrystals. Optical absorption and photoluminescence spectroscopy revealed quantum confined excited states in the nanocrystalline samples with features at 4.43 eV (280 nm) and 5.47 eV (227 nm).

Original languageEnglish (US)
Pages (from-to)3035-3037
Number of pages3
JournalApplied Physics Letters
Volume72
Issue number23
DOIs
StatePublished - 1998

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nanocrystals
laser ablation
excitation
gallium
pulsed lasers
absorption spectroscopy
optical absorption
electron diffraction
photoluminescence
nitrogen
atmospheres
transmission electron microscopy
metals
spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Leppert, V. J., Zhang, C. J., Lee, H. W. H., Kennedy, I. M., & Risbud, S. H. (1998). Observation of quantum confined excited states of GaN nanocrystals. Applied Physics Letters, 72(23), 3035-3037. https://doi.org/10.1063/1.121532

Observation of quantum confined excited states of GaN nanocrystals. / Leppert, Valerie J.; Zhang, Christina J.; Lee, Howard W H; Kennedy, Ian M.; Risbud, Subhash H.

In: Applied Physics Letters, Vol. 72, No. 23, 1998, p. 3035-3037.

Research output: Contribution to journalArticle

Leppert, VJ, Zhang, CJ, Lee, HWH, Kennedy, IM & Risbud, SH 1998, 'Observation of quantum confined excited states of GaN nanocrystals', Applied Physics Letters, vol. 72, no. 23, pp. 3035-3037. https://doi.org/10.1063/1.121532
Leppert VJ, Zhang CJ, Lee HWH, Kennedy IM, Risbud SH. Observation of quantum confined excited states of GaN nanocrystals. Applied Physics Letters. 1998;72(23):3035-3037. https://doi.org/10.1063/1.121532
Leppert, Valerie J. ; Zhang, Christina J. ; Lee, Howard W H ; Kennedy, Ian M. ; Risbud, Subhash H. / Observation of quantum confined excited states of GaN nanocrystals. In: Applied Physics Letters. 1998 ; Vol. 72, No. 23. pp. 3035-3037.
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