Visible luminescence from semiconductor quantum dots in large ensembles
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- R. Leon
- Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106
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- S. Fafard
- Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106
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- D. Leonard
- Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106
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- J. L. Merz
- Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106
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- P. M. Petroff
- Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106
Abstract
<jats:p>Visible luminescence has been obtained from ensembles of defect-free, InxAl(1−x)As islands of ultrasmall dimensions embedded in AlyGa(1−y)As cladding layers. These structures were grown by molecular beam epitaxy and studied with low-temperature photoluminescence (PL) and transmission electron microscopy. Visible luminescence is produced using various compositions of InxAl(1−x)As/AlyGa(1−y)As. Quantum dot size distributions, planar densities, dot heights, and wetting layer thicknesses are presented and correlated with the PL spectra.</jats:p>
Journal
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- Applied Physics Letters
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Applied Physics Letters 67 (4), 521-523, 1995-07-24
AIP Publishing
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Details 詳細情報について
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- CRID
- 1361418519415026048
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- DOI
- 10.1063/1.115175
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- ISSN
- 10773118
- 00036951
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- Data Source
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- Crossref