TY - JOUR
T1 - Optical observation of quantum-dot formation in sub-critical CdSe layers grown on ZnSe
AU - Kim, C. S.
AU - Kim, M.
AU - Lee, S.
AU - Furdyna, J. K.
AU - Dobrowolska, M.
AU - Rho, H.
AU - Smith, L. M.
AU - Jackson, Howard E.
N1 - Funding Information:
We acknowledge the support by the NSF (DMR-9705443, DMR-9705064, ECS-9412772), and ARO (DAAG55-97-1-0378). We also appreciate conversations with J.C. Kim.
PY - 2000/6/2
Y1 - 2000/6/2
N2 - The evolution of CdSe quantum dot (QD) formation on ZnSe was investigated on a series of samples grown by MBE, with nominal CdSe coverages ranging from 1.1 to 2.6 monolayers (ML). Micro-PL data suggest strongly confined zero-dimensional excitons even for coverages as low as 1.1 ML. PL and micro-PL data show emission from the QDs as well as from an accompanying 2 D layer; the temperature dependence of these emissions is notably different. Strong red-shifts of both emissions as the CdSe coverage increases are observed.
AB - The evolution of CdSe quantum dot (QD) formation on ZnSe was investigated on a series of samples grown by MBE, with nominal CdSe coverages ranging from 1.1 to 2.6 monolayers (ML). Micro-PL data suggest strongly confined zero-dimensional excitons even for coverages as low as 1.1 ML. PL and micro-PL data show emission from the QDs as well as from an accompanying 2 D layer; the temperature dependence of these emissions is notably different. Strong red-shifts of both emissions as the CdSe coverage increases are observed.
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U2 - 10.1016/S0022-0248(00)00221-9
DO - 10.1016/S0022-0248(00)00221-9
M3 - Conference article
AN - SCOPUS:0033717645
VL - 214
SP - 761
EP - 764
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
T2 - The 9th International Conference on II-VI Compounds
Y2 - 1 November 1999 through 5 November 1999
ER -