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Absorption Cross-Section and Related Optical Properties of Colloidal InAs Quantum Dots
Abstract
We report the absorption cross-section of colloidal InAs quantum dots of mean radii from 1.6 to 3.45 nm. We find excellent agreement between the measured results and calculated values based on a model of small-particle light absorption. The absorption cross-section per dot is 6.2 x 10(-16)R(3) cm(2) at 2.76 eV and 3.15 x 10(-16)R(1.28) cm(2) at the first-exciton absorption peak, with the dot radius R in nm. We find that the per-quantum-dot particle oscillator strength of the first-exciton transition is constant for all sizes studied. The radiative lifetime of the first exciton calculated from the oscillator strength increases with dot size and ranges from 4 ns for the smallest dots to 14 ns for the largest ones.
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Cites
Bruggeman, D. A. G. (1935) · Annalen der Physik · doi:10.1002/andp.19354160705 · Cited by 8,645
Cited by
Size-Dependent Optical Properties of Colloidal PbS Quantum Dots
Moreels, I., Lambert, K., Smeets, D., De Muynck, D., Nollet, T., Martins, J. C., Vanhaecke, F., Vantomme, A., Delerue, C., Allan, G., et al. (2009) · ACS Nano · doi:10.1021/nn900863a · Cited by 1,249
Colloidal Quantum Dots as Platforms for Quantum Information Science
Kagan, C. R., Bassett, L. C., Murray, C. B., & Thompson, S. M. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.0c00831 · Cited by 331
Absolute Photoluminescence Quantum Yields of IR-26 Dye, PbS, and PbSe Quantum Dots
Semonin, O. E., Johnson, J. C., Luther, J. M., Midgett, A. G., Nozik, A. J., & Beard, M. C. (2010) · The Journal of Physical Chemistry Letters · doi:10.1021/jz100830r · Cited by 310
Self-citationFranke, D., Harris, D. K., Chen, O., Bruns, O. T., Carr, J. A., Wilson, M. W. B., & Bawendi, M. G. (2016) · Nature Communications · doi:10.1038/ncomms12749 · Cited by 292
Metadata
- Authors
- Yu, P., Beard, M. C., Ellingson, R. J., Ferrere, S., Curtis, C., Drexler, J., Luiszer, F., & Nozik, A. J.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-03-17
- Volume
- 109
- Issue
- 15
- Pages
- 7084-7087
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2105752117
- Cited by
- 174
- References
- 1
- FWCI
- 4.43
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Yu, P., Beard, M. C., Ellingson, R. J., Ferrere, S., Curtis, C., Drexler, J., Luiszer, F., & Nozik, A. J. (2005). Absorption Cross-Section and Related Optical Properties of Colloidal InAs Quantum Dots. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp046127i
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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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