Abstract

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.

Original languageEnglish (US)
Article number5579988
Pages (from-to)808-818
Number of pages11
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume17
Issue number4
DOIs
StatePublished - Jul 1 2011

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Keywords

  • Nanowires (NWs)
  • optoelectronics
  • photovoltaic effects
  • semiconductor alloys
  • semiconductor lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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