Trace detection of multiwalled carbon nanotubes using Raman-enhancing silver nanocap arrays

Xianzhong Lang; Teng Qiu; Wenjun Zhang; Cheng Ji; Jun Wang; Paul K. Chu

doi:10.1088/0022-3727/43/45/455302

Author(s)

Xianzhong Lang
Teng Qiu
Wenjun Zhang
Cheng Ji
Jun Wang

Detail(s)

Original language	English
Article number	455302
Journal / Publication	Journal of Physics D: Applied Physics
Volume	43
Issue number	45
Publication status	Published - 17 Nov 2010

Link(s)

DOI	DOI https://doi.org/10.1088/0022-3727/43/45/455302 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-78249240638&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(ca786547-7509-45ef-a9af-c5442e0a8f98).html

Abstract

A convenient strategy is demonstrated for trace detection of multiwalled carbon nanotubes (MWNTs) using Raman-enhancing silver nanocap arrays. Microstructural analysis indicates that the hot spots are evenly distributed on the substrate. A brief analytical methodology to evaluate the dispersity of adsorbed MWNTs with different ultra-low concentrations by 2D point-by-point Raman mapping is proposed. The detection limit of this method was found to be 3 ppb. Our results open new possibilities for applying surface-enhanced Raman scattering to trace detection of an inorganic probe. © 2010 IOP Publishing Ltd.

Citation Format(s)

[ RIS ] [ BibTeX ]

Trace detection of multiwalled carbon nanotubes using Raman-enhancing silver nanocap arrays. / Lang, Xianzhong; Qiu, Teng; Zhang, Wenjun; Ji, Cheng; Wang, Jun; Chu, Paul K.

In: Journal of Physics D: Applied Physics, Vol. 43, No. 45, 455302, 17.11.2010.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Lang, X, Qiu, T, Zhang, W, Ji, C, Wang, J & Chu, PK 2010, 'Trace detection of multiwalled carbon nanotubes using Raman-enhancing silver nanocap arrays', Journal of Physics D: Applied Physics, vol. 43, no. 45, 455302. https://doi.org/10.1088/0022-3727/43/45/455302

Lang, X., Qiu, T., Zhang, W., Ji, C., Wang, J., & Chu, P. K. (2010). Trace detection of multiwalled carbon nanotubes using Raman-enhancing silver nanocap arrays. Journal of Physics D: Applied Physics, 43(45), [455302]. https://doi.org/10.1088/0022-3727/43/45/455302

Lang X, Qiu T, Zhang W, Ji C, Wang J, Chu PK. Trace detection of multiwalled carbon nanotubes using Raman-enhancing silver nanocap arrays. Journal of Physics D: Applied Physics. 2010 Nov 17;43(45). 455302. https://doi.org/10.1088/0022-3727/43/45/455302

Lang, Xianzhong ; Qiu, Teng ; Zhang, Wenjun ; Ji, Cheng ; Wang, Jun ; Chu, Paul K. / Trace detection of multiwalled carbon nanotubes using Raman-enhancing silver nanocap arrays. In: Journal of Physics D: Applied Physics. 2010 ; Vol. 43, No. 45.