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Spectral and Dynamical Properties of Multiexcitons in Semiconductor Nanocrystals
Abstract
Because of the strong spatial confinement of electronic wave functions and reduced dielectric screening, the effects of carrier-carrier Coulomb interactions are greatly enhanced in semiconductor nanocrystals (NCs) compared with those in bulk materials. These interactions open a highly efficient decay channel via Auger recombination, which represents a dominant recombination pathway for multiexcitons in NCs. Furthermore, strong Coulomb coupling between charge carriers leads to extremely efficient direct photogeneration of multiexcitons by single photons via carrier (or exciton) multiplication. This review focuses on spectral and dynamical properties of multiexcitons in semiconductor NCs. The specific topics discussed here include the structure of NC electronic states, spectral signatures of multiexcitons in transient absorption and photoluminescence, exciton-exciton interaction energies, Auger recombination, and carrier multiplication. This chapter also briefly reviews the implications of multiexciton effects for practical technologies, such as NC lasing and photovoltaics.
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Cites
Shape control of CdSe nanocrystals
Peng, X., Manna, L., Yang, W., Wickham, J., Scher, E., Kadavanich, A., & Alivisatos, A. P. (2000) · Nature · doi:10.1038/35003535 · Cited by 4,487
Tunable Near-Infrared Optical Gain and Amplified Spontaneous Emission Using PbSe Nanocrystals
Schaller, R. D., Petruska, M. A., & Klimov, V. I. (2003) · The Journal of Physical Chemistry B · doi:10.1021/jp0311660 · Cited by 321
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Cited by
Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy
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Transcending the slow bimolecular recombination in lead-halide perovskites for electroluminescence
Xing, G., Wu, B., Wu, X., Li, M., Du, B., Wei, Q., Guo, J., Yeow, E. K. L., Sum, T. C., & Huang, W. (2017) · Nature Communications · doi:10.1038/ncomms14558 · Cited by 601
Kambhampati, P. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp2058673 · Cited by 391
Sciortino, A., Cannizzo, A., & Messina, F. (2018) · C · doi:10.3390/c4040067 · Cited by 253
Jin, X., Sun, W., Chen, Z., Wei, T., Chen, C., He, X., Yuan, Y., Li, Y., & Li, Q. (2014) · ACS Applied Materials & Interfaces · doi:10.1021/am501597k · Cited by 40
Metadata
- Authors
- Klimov, V. I.
- Venue
- Annual Review of Physical Chemistry
- Publisher
- Annual Reviews
- Published
- 2007-05-01
- Volume
- 58
- Issue
- 1
- Pages
- 635-673
- ISSN
- 0066-426X (ISSN-L)
- 1545-1593
- OpenAlex
- W2102128050
- Cited by
- 1,021
- References
- 2
- FWCI
- 1.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Klimov, V. I. (2007). Spectral and Dynamical Properties of Multiexcitons in Semiconductor Nanocrystals. Annual Review of Physical Chemistry. https://doi.org/10.1146/annurev.physchem.58.032806.104537
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