Enhanced signal micro-raman study of SiGe nanowires and SiGe/Si nanowire axial heterojuntions grown using Au and Ga-Au catalysts

Anaya, Julián and Torres Pérez, Alfredo and Jiménez, Juan and Prieto, Carmelo and Rodriguez Dominguez, Andres and Rodriguez Rodriguez, Tomas and Ballesteros Pérez, Carmen Inés (2015). Enhanced signal micro-raman study of SiGe nanowires and SiGe/Si nanowire axial heterojuntions grown using Au and Ga-Au catalysts. In: "Materials Reseracrh Society 2014 Fall Meeting", 30/11/2014 - 05/12/2014, Boston, Massachusetts, EE.UU. pp. 1-6. https://doi.org/10.1557/opl.2015.88.

Description

Title: Enhanced signal micro-raman study of SiGe nanowires and SiGe/Si nanowire axial heterojuntions grown using Au and Ga-Au catalysts
Author/s:
  • Anaya, Julián
  • Torres Pérez, Alfredo
  • Jiménez, Juan
  • Prieto, Carmelo
  • Rodriguez Dominguez, Andres
  • Rodriguez Rodriguez, Tomas
  • Ballesteros Pérez, Carmen Inés
Item Type: Presentation at Congress or Conference (Article)
Event Title: Materials Reseracrh Society 2014 Fall Meeting
Event Dates: 30/11/2014 - 05/12/2014
Event Location: Boston, Massachusetts, EE.UU
Title of Book: Materials Reseracrh Society 2014 Fall Meeting
Date: 2015
Volume: 1751
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Ingeniería Electrónica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 42614
DC Identifier: http://oa.upm.es/42614/
OAI Identifier: oai:oa.upm.es:42614
DOI: 10.1557/opl.2015.88
Deposited by: Memoria Investigacion
Deposited on: 11 Jul 2016 18:25
Last Modified: 11 Jul 2016 18:25
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