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Influence of annealing on the optical and electrical properties of multilayered InAs/GaAs quantum dots

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dc.creator Chiquito A. J.
dc.creator Pusep Yu. A.
dc.creator Mergulhão S.
dc.creator Gobato Y. Galvão
dc.creator Galzerani J. C.
dc.date 2002
dc.date.accessioned 2013-05-30T01:42:37Z
dc.date.available 2013-05-30T01:42:37Z
dc.date.issued 2013-05-30
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000200009
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=2a&spage=287
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/3392
dc.description The characteristics of multi-layered InAs/GaAs self assembled quantum dots (SAQDs) annealed after the growth were here studied using a combination of capacitance-voltage (C-V) measurements,Raman scattering and photoluminescence (PL) spectroscopy. The combination of the results obtained with the three techniques, gave evidences that the annealing at 500º C causes the sharpness of the SAQDs interfaces, while the annealing at 600º C eliminated the SAQDs. However, the comparison with the case of single layered SAQDs, revealed a thermal stability of the last system even at an annealing temperature of 700º C, thus confirming the role of the interlayer strain in the low temperature diffusion process.
dc.publisher Sociedade Brasileira de Física
dc.source Brazilian Journal of Physics
dc.title Influence of annealing on the optical and electrical properties of multilayered InAs/GaAs quantum dots


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