Creating SERS hot spots on ultralong single-crystal beta-AgVO3 microribbons
- Authors
- Jang, Seung-Ho; Yoon, Jun Hee; Huh, Young-Duk; Yoon, Sangwoon
- Issue Date
- Mar-2014
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY C, v.2, no.20, pp 4051 - 4056
- Pages
- 6
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY C
- Volume
- 2
- Number
- 20
- Start Page
- 4051
- End Page
- 4056
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/54870
- DOI
- 10.1039/c4tc00078a
- ISSN
- 2050-7526
2050-7534
- Abstract
- beta-AgVO3 ribbons are novel one-dimensional structures with excellent structural, electrical, and catalytic properties. Here we report the synthesis of ultralong beta-AgVO3 microribbons and their applications as surface-enhanced Raman scattering (SERS) substrates. A hydrothermal method allows us to prepare millimeter-long beta-AgVO3 ribbons with a cross-section of similar to 2.5 mm x similar to 1 mm in a high yield. The length of the b- AgVO3 microribbons is controlled by the amount of pyridine added to AgNO3 and NH4VO3. The perfectly smooth and single crystalline beta-AgVO3 surfaces drastically change into rough and rippled surfaces upon reaction with 4-aminothiophenol. Electron microscopy studies reveal that Ag nanoparticles with a diameter of similar to 7 nm are formed on the surface, rendering the ultralong beta-AgVO3 microribbons highly SERS-active. Possible mechanisms of the transformation and applications of the resulting SERS-active substrates in microfluidics are discussed herein.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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