Probing the growth habit of highly single crystalline twinned V-shape RuO2 nanowires by polarized raman scattering

Hae Young Shin, Jaeyeon Lee, Yumin Lee, Sewon Jeong, Hayoung Jung, Hak Ki Yu, Jeong Min Baik, Myung Hwa Kim, Seokhyun Yoon

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Polarized Raman scattering measurements have been carefully employed to explore the growth orientation and direction of a highly single crystalline twinned V-shaped ruthenium dioxide nanowire which were directly grown on a Si wafer with the thin SiO2 layer at 750°C without any catalyst via a vapor phase transport process. Interestingly, the morphology of most of nanowires represents a well-defined twinned V-shape with a specific angle of approximately 52° between the two branches under a specific growth condition. We measured polarized Raman spectra of a single V-shaped nanowire and calculated the Raman intensity of RuO2 nanowire by considering a crystal coordinate. We observed that each branch of a V-shaped RuO2 nanowire grows into [001] direction, exactly consistent with the prediction of the growth direction by high resolution transmission electron microscopy (HRTEM).

Original languageEnglish
Pages (from-to)20716-20720
Number of pages5
JournalJournal of Physical Chemistry C
Volume118
Issue number35
DOIs
StatePublished - 4 Sep 2014

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