Quantum confinement of excitons in wurtzite InP nanowires
Exciton resonances are observed in photocurrent spectra of 80 nm wurtzite InP nanowire devices at low temperatures, which correspond to transitions between the A, B, and C valence bands and the lower conduction band. Photocurrent spectra for 30 nm WZ nanowires exhibit shifts of the exciton resonance...
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Veröffentlicht in: | Journal of applied physics 2015-05, Vol.117 (19) |
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creator | Pemasiri, K. Jackson, H. E. Smith, L. M. Wong, B. M. Paiman, S. Gao, Q. Tan, H. H. Jagadish, C. |
description | Exciton resonances are observed in photocurrent spectra of 80 nm wurtzite InP nanowire devices at low temperatures, which correspond to transitions between the A, B, and C valence bands and the lower conduction band. Photocurrent spectra for 30 nm WZ nanowires exhibit shifts of the exciton resonances to higher energy, which are consistent with finite element calculations of wavefunctions of the confined electrons and holes for the various bands. |
doi_str_mv | 10.1063/1.4921109 |
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source | AIP Journals Complete; Alma/SFX Local Collection |
subjects | Applied physics Conduction bands CUBIC LATTICES ELECTRONIC STRUCTURE ELECTRONS EXCITONS FINITE ELEMENT METHOD HOLES INDIUM PHOSPHIDES NANOSCIENCE AND NANOTECHNOLOGY NANOWIRES PHOTOCURRENTS Photoelectric effect Photoelectric emission Quantum confinement TEMPERATURE DEPENDENCE VALENCE Wave functions Wurtzite |
title | Quantum confinement of excitons in wurtzite InP nanowires |
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