eprintid: 42614 rev_number: 23 eprint_status: archive userid: 1903 dir: disk0/00/04/26/14 datestamp: 2016-07-11 18:25:51 lastmod: 2023-03-23 15:39:46 status_changed: 2023-03-23 15:39:46 type: conference_item metadata_visibility: show creators_name: Anaya, Julián creators_name: Torres Pérez, Alfredo creators_name: Jiménez, Juan creators_name: Prieto, Carmelo creators_name: Rodríguez Domínguez, Andrés creators_name: Rodríguez Rodríguez, Tomás creators_name: Ballesteros Pérez, Carmen Inés creators_id: andres.rodriguez.dominguez@upm.es title: Enhanced signal micro-raman study of SiGe nanowires and SiGe/Si nanowire axial heterojuntions grown using Au and Ga-Au catalysts ispublished: pub subjects: fisica subjects: telecomunicaciones 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. date: 2015 date_type: published publisher: Materials Research Society id_number: 10.1557/opl.2015.88 full_text_status: public pres_type: paper volume: 1751 pagerange: 1-6 event_title: Materials Reseracrh Society 2014 Fall Meeting event_location: Boston, Massachusetts, EE.UU event_dates: 30/11/2014 - 05/12/2014 event_type: conference institution: Telecomunicacion department: Ingenieria_Electronica refereed: TRUE book_title: Materials Reseracrh Society 2014 Fall Meeting rights: by-nc-nd citation: Anaya, Julián and Torres Pérez, Alfredo and Jiménez, Juan and Prieto, Carmelo and Rodríguez Domínguez, Andrés and Rodríguez Rodríguez, Tomás 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 . document_url: https://oa.upm.es/42614/1/INVE_MEM_2015_230462.pdf