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Semiconductor Alloy Nanowires and Nanobelts With Tunable Optical Properties

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3 Author(s)
Anlian Pan ; Arizona State University, Tempe, USA ; Patricia L. Nichols ; C. Z. Ning

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.

Published in:

IEEE Journal of Selected Topics in Quantum Electronics  (Volume:17 ,  Issue: 4 )