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Luminescence Quantum Yield of Single Gold Nanorods
Abstract
We study the luminescence quantum yield (QY) of single gold nanorods with different aspect ratios and volumes. Compared to gold nanospheres, we observe an increase of QY by about an order of magnitude for particles with a plasmon resonance >650 nm. The observed trend in QY is further confirmed by controlled reshaping of a single gold nanorod to a spherelike shape. Moreover, we identify two spectral components, one around 500 nm originating from a combination of interband transitions and the transverse plasmon and one coinciding with the longitudinal plasmon band. These components are analyzed by correlating scattering and luminescence spectra of single nanorods and performing polarization sensitive measurements. Our study contributes to the understanding of luminescence from gold nanorods. The enhanced QY we report can benefit applications in biological and soft matter studies.
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Cites
Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
Cited by
Chemical mapping of a single molecule by plasmon-enhanced Raman scattering
Zhang, R., Zhang, Y., Dong, Z. C., Jiang, S., Zhang, C., Chen, L. G., Zhang, L., Liao, Y., Aizpurua, J., Luo, Y., et al. (2013) · Nature · doi:10.1038/nature12151 · Cited by 1,770
Single-Molecule Plasmon Sensing: Current Status and Future Prospects
Taylor, A. B., & Zijlstra, P. (2017) · ACS Sensors · doi:10.1021/acssensors.7b00382 · Cited by 366
Self-citationPlasmon-Induced Hot Electron Transfer from the Au Tip to CdS Rod in CdS-Au Nanoheterostructures
Wu, K., Rodríguez-Córdoba, W. E., Yang, Y., & Lian, T. (2013) · Nano Letters · doi:10.1021/nl402730m · Cited by 334
Metadata
- Authors
- Yorulmaz, M., Khatua, S., Zijlstra, P., Gaiduk, A., & Orrit, M.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-07-12
- Volume
- 12
- Issue
- 8
- Pages
- 4385-4391
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2091962209
- Cited by
- 203
- References
- 1
- FWCI
- 8.74
- Type
- journal article
- Language
- en
- Open access
- closed
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