Semiconductor Alloy Nanowires and Nanobelts With Tunable Optical Properties

Recent advancements in the study of alloy semiconductor nanowires (NWs) and nanobelts are reviewed with a special perspective on their applications in optoelectronics with widely tunable bandgaps. Special emphasis is on the composition-graded alloy NWs. An extremely wide range of alloy compositions...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2011-07, Vol.17 (4), p.808-818
Main Authors: Pan, A., Nichols, P. L., Ning, C. Z.
Format: Article
Language:English
Subjects:
Crystals
Energy gaps (solid state)
Epitaxial growth
Gallium arsenide
Metals
MOCVD
Nanocomposites
Nanomaterials
Nanostructure
Nanowires
Nanowires (NWs)
optoelectronics
Photonic band gap
Photonic band gaps
photovoltaic effects
semiconductor alloys
Semiconductor lasers
Semiconductors
Substrates
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Summary:Recent advancements in the study of alloy semiconductor nanowires (NWs) and nanobelts are reviewed with a special perspective on their applications in optoelectronics with widely tunable bandgaps. Special emphasis is on the composition-graded alloy NWs. An extremely wide range of alloy compositions (thus bandgaps) can be achieved on a single substrate in a single growth run, creating an unprecedented materials capability that is not possible with planar epitaxial growth. Applications of such unique materials in widely tunable lasers and full-spectrum solar cells are discussed.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2010.2064159