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Optical properties of CdTe quantum dots
|P. Wojnar , Marta Aleszkiewicz , Jacek Kossut , Grzegorz Karczewski|
Polish Academy of Sciences, Institute of Physics, al. Lotników 32/46, Warszawa 02-668, Poland
We investigated electroluminescence (EL), photoluminescence (PL) and micro-photoluminescence (μ-PL) of self assembled CdTe quantum dots (QDs) embedded in different II-VI materials: ZnCdTe, ZnMgTe and CdMgTe. Our structures were grown by Molecular Beam Epitaxy (MBE) employing a new self formation method of the QDs proposed recently by Tinjod et al. . The most important advantage of this method is the possibility of quantum dots formation even when the lattice mismatch between the dot and the barrier material is as small as 2.8%. Another advantage is the possibility of in-situ observation of the 2D-3D transition by RHEED (Reflection of High Energy Electron Diffraction).
Presentation: oral at E-MRS Fall Meeting 2004, Symposium F, by Piotr Wojnar
See On-line Journal of E-MRS Fall Meeting 2004
Submitted: 2004-05-20 15:17 Revised: 2009-06-08 12:55