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Polymorph-Tuned Synthesis of alpha- and beta-Bi2O3 Nanowires and Determination of Their Growth Direction from Polarized Raman Single Nanowire Microscopy
- Alternative Title
- Polymorph-tuned synthesis of α-And β-Bi2O3 nanowires and determination of their growth direction from polarized raman single nanowire microscopy
- Author(s)
- In, Juneho, Yoon, Ilsun, Seo, Kwanyong, Park, Jeunghee, Choo, Jaebum, Lee, Yonghoon, Kim, Bongsoo
- Issued Date
- 2011-02
- Citation
- CHEMISTRY-A EUROPEAN JOURNAL, v.17, no.4, pp.1304 - 1309
- Abstract
- We report polymorph-tuned synthesis of alpha- and beta-Bi2O3 nanowires and their single nanowire micro-Raman study. The single crystalline Bi2O3 nanowires in different phases (alpha and beta) were selectively synthesized by adjusting the heating temperature of Bi precursor in a vapor transport process. No catalyst was employed. Furthermore, at an identical precursor evaporation temperature, alpha- and beta- phase Bi2O3 nanowires were simultaneously synthesized along the temperature gradient at a substrate. The growth direction of alpha-Bi2O3 nanowires was revealed by polarized Raman single nanowire spectra. For thin beta-Bi2O3 nanowires with a very small diameter, the polarized Raman single nanowire spectrum was strongly influenced by the shape effect
- Publisher
- WILEY-V C H VERLAG GMBH
- ISSN
- 0947-6539
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