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Re-examination of the Size-Dependent Absorption Properties of CdSe Quantum Dots
Open accessAbstract
We investigate the size-dependent optical absorption coefficients of CdSe nanocrystals at both the band-edge and high within the absorption profile. The absorption properties in both of these regions must be self-consistent to ensure accuracy of the measured coefficients. By combining transmission electron microscopy and inductively coupled plasma−optical emission spectroscopy, we map out the optical absorption properties and establish reliable size-dependent band-edge calibration curves. The measured absorption properties are compared to a simple 0D confinement model, to classical theory based on light absorption by small particles in a dielectric medium and to state-of-the-art atomistic semiempirical pseudopotential modeling. The applicability of these newly established calibration curves is demonstrated by analyzing the nucleation and growth kinetics of CdSe nanocrystals in solution.
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Citations
Cited by
Mechanisms of Nucleation and Growth of Nanoparticles in Solution
Thanh, N. T. K., Maclean, N., & Mahiddine, S. (2014) · Chemical Reviews · doi:10.1021/cr400544s · Cited by 3,399
Anderson, N. C., Hendricks, M. P., Choi, J. J., & Owen, J. S. (2013) · Journal of the American Chemical Society · doi:10.1021/ja4086758 · Cited by 874
Size-Dependent Valence and Conduction Band-Edge Energies of Semiconductor Nanocrystals
Jasieniak, J., Califano, M., & Watkins, S. E. (2011) · ACS Nano · doi:10.1021/nn201681s · Cited by 699
Self-citationThe Evolution of Quantum Confinement in CsPbBr3 Perovskite Nanocrystals
Butkus, J., Vashishtha, P., Chen, K., Gallaher, J. K., Prasad, S. K. K., Metin, D. Z., Laufersky, G., Gaston, N., Halpert, J. E., & Hodgkiss, J. M. (2017) · Chemistry of Materials · doi:10.1021/acs.chemmater.7b00478 · Cited by 362
Surface Plasmon Mediated Strong Exciton−Photon Coupling in Semiconductor Nanocrystals
Gómez, D. E., Vernon, K. C., Mulvaney, P., & Davis, T. J. (2010) · Nano Letters · doi:10.1021/nl903455z · Cited by 314
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Metadata
- Authors
- Jasieniak, J., Smith, L., van Embden, J., Mulvaney, P., & Califano, M.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-10-15
- Volume
- 113
- Issue
- 45
- Pages
- 19468-19474
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W1964290006
- Cited by
- 602
- References
- 0
- FWCI
- 11.17
- Type
- journal article
- Language
- en
- Open access
- green
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- Jasieniak, J., Smith, L., van Embden, J., Mulvaney, P., & Califano, M. (2009). Re-examination of the Size-Dependent Absorption Properties of CdSe Quantum Dots. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp906827m
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