The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Multiple Exciton Generation in Films of Electronically Coupled PbSe Quantum Dots
Abstract
We study multiple exciton generation (MEG) in electronically coupled films of PbSe quantum dots (QDs) employing ultrafast time-resolved transient absorption spectroscopy. We demonstrate that the MEG efficiency in PbSe does not decrease when the QDs are treated with hydrazine, which has been shown to greatly enhance carrier transport in PbSe QD films by decreasing the interdot distance. The quantum yield is measured and compared to previously reported values for electronically isolated QDs suspended in organic solvents at approximately 4 and 4.5 times the effective band gap. A slightly modified analysis is applied to extract the MEG efficiency and the absorption cross section of each sample at the pump wavelength. We compare the absorption cross sections of our samples to that of bulk PbSe. We find that both the biexciton lifetime and the absorption cross section increase in films relative to isolated QDs in solution.
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Organically modified aluminosilicate mesostructures from block copolymer phases
Templin, M., Franck, A., Du Chesne, A., Leist, H., Zhang, Y., Ulrich, R., Schädler, V., & Wiesner, U. (1997) · Science · doi:10.1126/science.278.5344.1795 · Cited by 668
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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
Tang, J., Brzozowski, L., Barkhouse, D. A. R., Wang, X., Debnath, R., Wolowiec, R., Palmiano, E., Levina, L., Pattantyus-Abraham, A. G., Jamakosmanovic, D., et al. (2010) · ACS Nano · doi:10.1021/nn901564q · Cited by 392
Sarkar, R., Farghaly, A. A., & Arachchige, I. U. (2022) · Chemistry of Materials · doi:10.1021/acs.chemmater.2c00717 · Cited by 38
Metadata
- Authors
- Luther, J. M., Beard, M. C., Song, Q., Law, M., Ellingson, R. J., & Nozik, A. J.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-05-27
- Volume
- 7
- Issue
- 6
- Pages
- 1779-1784
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2018756307
- Cited by
- 240
- References
- 1
- FWCI
- 10.60
- Type
- journal article
- Language
- en
- Open access
- closed
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