title: Pressure-Dependent Photoluminescence Study of Wurtzite InP Nanowires.
abstract: The elastic properties of InP nanowires are investigated by photoluminescence measurements under hydrostatic pressure at room temperature and experimentally deduced values of the linear pressure coefficients are obtained. The pressure-induced energy shift of the A and B transitions yields a linear pressure coefficient of αA = 88.2 ± 0.5 meV/GPa and αB = 89.3 ± 0.5 meV/GPa with a small sublinear term of βA = βB = -2.7 ± 0.2 meV/GPa(2). Effective hydrostatic deformation potentials of -6.12 ± 0.04 and -6.2 ± 0.04 eV are derived from the results for the A and B transitions, respectively. A decrease of the integrated intensity is observed above 0.5 GPa and is interpreted as a carrier transfer from the first to the second conduction band of the wurtzite InP.
authors.affiliation: Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Université de Lyon , INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Chauvin
authors.affiliation: Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Université de Lyon , INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France.|Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Université de Lyon , Ecole Centrale de Lyon, 36 avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Amaury
authors.initials: A
authors.lastname: Mavel
authors.affiliation: Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay , route de Nozay, F-91460 Marcoussis, France.
authors.forename: Gilles
authors.initials: G
authors.lastname: Patriarche
authors.affiliation: Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Université de Lyon , INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France.
authors.forename: Bruno
authors.initials: B
authors.lastname: Masenelli
authors.affiliation: Institut des Nanotechnologies de Lyon (INL)-UMR5270-CNRS, Université de Lyon , Ecole Centrale de Lyon, 36 avenue Guy de Collongue, 69134 Ecully, France.
authors.forename: Michel
authors.initials: M
authors.lastname: Gendry
authors.affiliation: Institut Lumière Matière, UMR 5306 Université Lyon 1-CNRS, Université de Lyon 69622 Villeurbanne cedex, France.
authors.forename: Denis
authors.initials: D
authors.lastname: Machon
keywords: InP nanowires; deformation potentials; high-pressure; optical properties; wurtzite material