Journal article
On optical properties of GaAs and GaAs/AlGaAs core-shell periodic nanowire arrays
Journal of applied physics, v 109(6), pp 064314-064314-6
15 Mar 2011
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Optical reflection, transmission, and absorption in arrays of GaAs and GaAs/AlGaAs core-shell nanowires are studied using transfer matrix and photonic bandgap formalisms, analyzing the effects of size, geometry, height, packing density, and polarization. Energy dependence of the spectra demonstrates optical modes in the dielectric, similar to guided resonant modes, and also the air bands. Simulation of polarization dependence verifies higher absorption with the electric field along the wire axis. Higher absorption at much lower volume compared to thin film, combined with excellent charge transport, make core-shell nanowire arrays excellent candidates for optoelectronics applications. (c) 2011 American Institute of Physics. [doi:10.1063/1.3555096]
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Details
- Title
- On optical properties of GaAs and GaAs/AlGaAs core-shell periodic nanowire arrays
- Creators
- Zongquan Gu - Drexel Univ, Elect & Comp Engn Dept, Philadelphia, PA 19104 USAPaola Prete - IMM CNR, Res Unit Lecce, I-73100 Lecce, ItalyNicola Lovergine - Univ Salento, Dept Innovat Engn, I-73100 Lecce, ItalyBahram Nabet - Drexel University
- Publication Details
- Journal of applied physics, v 109(6), pp 064314-064314-6
- Publisher
- American Institute of Physics
- Number of pages
- 6
- Grant note
- 0 702 716; 0 907 381 / NSF; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000289149900120
- Scopus ID
- 2-s2.0-79953653221
- Other Identifier
- 991019169526404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Applied