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Controlled Synthesis of Ag2S Quantum Dots and Experimental Determination of the Exciton Bohr Radius
Abstract
Ag 2 S quantum dots (QDs) have attracted increasing attention due to their appealing optical properties in the near-infrared regime. However, a full understanding of the quantum confinement effect of Ag 2 S QDs has not been achieved so far. Herein, for the first time, the size-dependent excited state optical properties of Ag 2 S QDs are systematically investigated by photoluminescence (PL), PL excitation (PLE), and time-resolved PL spectroscopy. Experimentally, we determine the exciton Bohr radius of Ag 2 S QDs as 2.2 nm, which is highly consistent with theoretical results.
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Park, J., An, K., Hwang, Y., Park, J.-G., Noh, H.-J., Kim, J.-Y., Park, J.-H., Hwang, N.-M., & Hyeon, T. (2004) · Nature Materials · doi:10.1038/nmat1251 · Cited by 4,076
Second window for in vivo imaging
Smith, A. M., Mancini, M. C., & Nie, S. (2009) · Nature Nanotechnology · doi:10.1038/nnano.2009.326 · Cited by 2,848
Peng, X., Wickham, J., & Alivisatos, A. P. (1998) · Journal of the American Chemical Society · doi:10.1021/ja9805425 · Cited by 1,895
A route to brightly fluorescent carbon nanotubes for near-infrared imaging in mice
Welsher, K., Liu, Z., Sherlock, S. P., Robinson, J. T., Chen, Z., Daranciang, D., & Dai, H. (2009) · Nature Nanotechnology · doi:10.1038/nnano.2009.294 · Cited by 1,287
Welsher, K., Sherlock, S. P., & Dai, H. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1014501108 · Cited by 958
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Chen, Y., Wang, S., & Zhang, F. (2023) · Nature Reviews Bioengineering · doi:10.1038/s44222-022-00002-8 · Cited by 566
The Heat-Up Synthesis of Colloidal Nanocrystals
van Embden, J., Chesman, A. S. R., & Jasieniak, J. J. (2015) · Chemistry of Materials · doi:10.1021/cm5028964 · Cited by 414
Near-infrared II fluorescence imaging
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Metadata
- Authors
- Zhang, Y., Liu, Y., Li, C., Chen, X., & Wang, Q.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-02-24
- Volume
- 118
- Issue
- 9
- Pages
- 4918-4923
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2317349663
- Cited by
- 272
- References
- 5
- FWCI
- 10.27
- Type
- journal article
- Language
- en
- Open access
- closed
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