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Hot-Electron Transfer from Semiconductor Nanocrystals
Abstract
Hot on the Trail: Solar cells essentially operate by absorbing light, which needs to be above a certain energy threshold. The absorbed light then liberates charges within the solar cell to carry electrical current. Unfortunately, the liberated charges behave the same way whether they are excited right at the threshold (e.g., by visible light) or well above it (by ultraviolet light), which leads to any excess energy being dissipated as waste heat. Tisdale et al. (p. 1543 ) have documented a potential first step toward resolving this inefficiency. Specifically, electrons excited by light absorption in lead selenide nanocrystals were able to migrate to an adjacent titanium dioxide surface without releasing their excess energy to heat. The next step will be to devise a means of harnessing the stored energy in a circuit.
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Citations
Cited by
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
Zheng, Q., Chu, W., Zhao, C., Zhang, L., Guo, H., Wang, Y., Jiang, X., & Zhao, J. (2019) · WIREs Computational Molecular Science · doi:10.1002/wcms.1411 · Cited by 452
Colloidal Quantum Dot Photovoltaics: A Path Forward
Kramer, I. J., & Sargent, E. H. (2011) · ACS Nano · doi:10.1021/nn203438u · Cited by 363
From Ultrafast to Ultraslow: Charge-Carrier Dynamics of Perovskite Solar Cells
Shi, J., Li, Y., Li, Y., Li, D., Luo, Y., Wu, H., & Meng, Q. (2018) · Joule · doi:10.1016/j.joule.2018.04.010 · Cited by 341
Faber, M. S., Park, K., Cabán-Acevedo, M., Santra, P. K., & Jin, S. (2013) · The Journal of Physical Chemistry Letters · doi:10.1021/jz400642e · Cited by 206
Metadata
- Authors
- Tisdale, W. A., Williams, K. J., Timp, B. A., Norris, D. J., Aydil, E. S., & Zhu, X.-Y.
- Venue
- Science
- Published
- 2010-06-18
- Volume
- 328
- Issue
- 5985
- Pages
- 1543-1547
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2016681947
- Cited by
- 871
- References
- 0
- FWCI
- 35.68
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tisdale, W. A., Williams, K. J., Timp, B. A., Norris, D. J., Aydil, E. S., & Zhu, X.-Y. (2010). Hot-Electron Transfer from Semiconductor Nanocrystals. Science. https://doi.org/10.1126/science.1185509
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
