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Title: Enhanced Signal Micro-Raman Study of SiGe Nanowires and SiGe/Si Nanowire Axial Heterojuntions Grown Using Au and Ga-Au Catalysts
Authors: Anaya, Julián
Torres, Alfredo
Jiménez López, Juan Ignacio
Prieto, Carmelo
Rodríguez, Andrés
Rodríguez, Tomás
Ballesteros, Carmen
Issue Date: 2015
Publisher: Materials Reseracrh Society
Description: Producción Científica
Citation: MRS Proceedings, 2015, vol. 1751
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.
Keywords: Enhanced Signal Micro-Raman
Peer Review: SI
DOI: 10.1557/opl.2015.88
Sponsor: Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA302U13)
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:DEP32 - Artículos de revista

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