title: Enhanced signal micro-raman study of SiGe nanowires and SiGe/Si nanowire axial heterojuntions grown using Au and Ga-Au catalysts
creator: Anaya, Julián
creator: Torres Pérez, Alfredo
creator: Jiménez, Juan
creator: Prieto, Carmelo
creator: Rodríguez Domínguez, Andrés
creator: Rodríguez Rodríguez, Tomás
creator: Ballesteros Pérez, Carmen Inés
subject: Physics
subject: Telecommunications
description: MicroRaman spectroscopy was used for the characterization of heterostructured SiGe/Si nanowires. The NWs were grown with alloyed AuGa catalysts droplets with different Ga compositions aiming to make more abrupt heterojunctions. The heterojunctions were first characterized by TEM; then the NWs were scanned by the laser beam in order to probe the heterojunction. The capability of the MicroRaman spectroscopy for studying the heterojunction is discussed. The results show that the use of catalysts with lower Ge and Si solubility (AuGa alloys) permits to achieve more abrupt junctions.
publisher: E.T.S.I. Telecomunicación (UPM)
rights: https://creativecommons.org/licenses/by-nc-nd/3.0/es/
date: 2015
type: info:eu-repo/semantics/conferenceObject
type: Presentation at Congress or Conference
source: Materials Reseracrh Society 2014 Fall Meeting | Materials Reseracrh Society 2014 Fall Meeting | 30/11/2014 - 05/12/2014 | Boston, Massachusetts, EE.UU
type: PeerReviewed
format: application/pdf
language: eng
rights: info:eu-repo/semantics/openAccess
relation: info:eu-repo/semantics/altIdentifier/doi/10.1557/opl.2015.88
identifier: https://oa.upm.es/42614/