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Surface-Enhanced Infrared Absorption Using Individual Cross Antennas Tailored to Chemical Moieties
Abstract
The development of antenna structures for surface-enhanced infrared absorption spectroscopy (SEIRA) is a topic of intense and growing interest for extending IR spectroscopy to zeptomolar quantities and ultimately to the single-molecule level. Here we show that strong infrared spectroscopic enhancements can be obtained from individual gold nanoantennas using conventional IR spectrometric sources. The antenna structure dimensions can be tuned to enhance the IR modes of specific chemical moieties. Simulations of the electric field intensity in the antenna junction region reveal a maximum SEIRA enhancement factor of more than 12,000. These findings open new opportunities for analyzing IR vibrations of exceptionally small quantities of molecules using widely accessible light sources.
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Cited by
Nanogapped Au Antennas for Ultrasensitive Surface-Enhanced Infrared Absorption Spectroscopy
Dong, L., Yang, X., Zhang, C., Cerjan, B., Zhou, L., Tseng, M. L., Zhang, Y., Alabastri, A., Nordlander, P., & Halas, N. J. (2017) · Nano Letters · doi:10.1021/acs.nanolett.7b02736 · Cited by 274
Self-citationBrown, L. V., Yang, X., Zhao, K., Zheng, B. Y., Nordlander, P., & Halas, N. J. (2015) · Nano Letters · doi:10.1021/nl504455s · Cited by 266
Self-citationSurface-Enhanced Infrared Spectroscopy Using Nanometer-Sized Gaps
Huck, C., Neubrech, F., Vogt, J., Toma, A., Gerbert, D., Katzmann, J., Härtling, T., & Pucci, A. (2014) · ACS Nano · doi:10.1021/nn500903v · Cited by 225
Su, D.-S., Tsai, D. P., Yen, T.-J., & Tanaka, T. (2019) · ACS Sensors · doi:10.1021/acssensors.9b01225 · Cited by 39
Metadata
- Authors
- Brown, L. V., Zhao, K., King, N., Sobhani, H., Nordlander, P., & Halas, N. J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-02-22
- Volume
- 135
- Issue
- 9
- Pages
- 3688-3695
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2000551948
- Cited by
- 237
- References
- 0
- FWCI
- 16.65
- Type
- journal article
- Language
- en
- Open access
- closed
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- Brown, L. V., Zhao, K., King, N., Sobhani, H., Nordlander, P., & Halas, N. J. (2013). Surface-Enhanced Infrared Absorption Using Individual Cross Antennas Tailored to Chemical Moieties. Journal of the American Chemical Society. https://doi.org/10.1021/ja312694g
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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