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Title: 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 resonances to higher energy, which are consistent with finite element calculations of wavefunctions of the confined electrons and holes for the various bands.
Authors:
; ;  [1] ;  [2] ; ; ; ;  [3]
  1. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221 (United States)
  2. Department of Chemical and Environmental Engineering and Materials Science, University of California, Riverside, California 92521 (United States)
  3. Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200 (Australia)
Publication Date:
OSTI Identifier:
22410222
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CUBIC LATTICES; ELECTRONIC STRUCTURE; ELECTRONS; EXCITONS; FINITE ELEMENT METHOD; HOLES; INDIUM PHOSPHIDES; NANOWIRES; PHOTOCURRENTS; TEMPERATURE DEPENDENCE; VALENCE