title: Optical characterization of InAs quantum wells and dots grown radially on wurtzite InP nanowires.
abstract: Correlated micro-photoluminescence (μPL) and cathodoluminescence (CL) measurements are reported for single core-shell InP-InAs wurtzite nanowires grown using metal-organic vapor phase epitaxy. Samples covering a radial InAs shell thickness of 1-12 ML were investigated. The effective masses for the wurtzite material were determined from the transition energy dependence of the InAs shell thickness, using a model based on linear deformation potential theory. InP cores with segments of mixed zincblende and wurtzite, on which quantum dots nucleated selectively, were also investigated. Narrow peaks were observed by μPL and the spatial origin of the emission was identified with CL imaging.
authors: Lund University, Solid State Physics and the Nanometer structure consortium, Box 118, SE-221 00, Lund, Sweden. david.lindgren@ftf.lth.se
authors: David
authors: D
authors: Lindgren
authors: Kenichi
authors: K
authors: Kawaguchi
authors: Magnus
authors: M
authors: Heurlin
authors: Magnus T
authors: MT
authors: Borgström
authors: Mats-Erik
authors: ME
authors: Pistol
authors: Lars
authors: L
authors: Samuelson
authors: Anders
authors: A
authors: Gustafsson