Metal-particle-induced enhancement of the photoluminescence from biomolecule-functionalized carbon nanotubesopen access
- Authors
- Kim, Se-Jin; Park, June; Jeong, Yuhyun; Go, Hayoung; Lee, Kangseok; Hong, Seunghun; Seong, Maeng-Je
- Issue Date
- Feb-2014
- Publisher
- SPRINGER
- Keywords
- Carbon nanotube; Metal-particle-induced photoluminescence enhancement; RNA-functionalized carbon nanotube
- Citation
- NANOSCALE RESEARCH LETTERS, v.9, no.1, pp 1 - 7
- Pages
- 7
- Journal Title
- NANOSCALE RESEARCH LETTERS
- Volume
- 9
- Number
- 1
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/12477
- DOI
- 10.1186/1556-276X-9-85
- ISSN
- 1556-276X
1556-276X
- Abstract
- The effect of metal particles on the photoluminescence (PL) and the Raman spectra of functionalized SWCNTs in aqueous solutions was systematically investigated by studying three different metal particles (gold, cobalt, and nickel) on three different SWCNT suspensions (DNA-, RNA-, and sodium deoxycholate salt (DOC)-functionalized SWCNTs). Substantial enhancement of the PL intensities was observed, while the Raman spectra remained unchanged, after gold, cobalt, or nickel particles were introduced into RNA-SWCNT aqueous suspensions. Almost the same results were obtained after the same metal particles were added to DNA-SWCNT aqueous suspensions. However, both the PL and the Raman spectra did not exhibit any change at all after the same metal particles were introduced into DOC-SWCNT aqueous suspensions. The unusual PL enhancements observed in this work cannot be accounted for by the three well-known mechanisms in the literature: surface-enhanced Raman scattering effect, Forster resonance energy transfer in a rebundling of isolated SWCNTs, and pH changes of the aqueous solutions.
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- Appears in
Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
- College of Natural Sciences > Department of Life Science > 1. Journal Articles
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