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Temperature Dependence of the Luminescence Lifetime of SingleCdSe/ZnSQuantum Dots
Open accessAbstract
We study the temperature dependence of the luminescence decay of single CdSe/ZnS quantum dots between 2 and 140 K. For the first time, we observe a biexponential decay which was completely hidden in ensemble measurements. We find that the long time component strongly depends on temperature. This demonstrates that the band edge luminescence arises from two thermally mixed fine structure states, the dark ground state and the lowest bright one. To interpret our results, we derive the analytical expressions for the decay using a three level model. Fitting the experimental data leads directly to the lifetime of the states as well as their energy splitting.
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Cited by
Spectroscopic and Device Aspects of Nanocrystal Quantum Dots
Pietryga, J. M., Park, Y.-S., Lim, J., Fidler, A. F., Bae, W. K., Brovelli, S., & Klimov, V. I. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00169 · Cited by 1,040
Lounis, B., & Orrit, M. (2005) · Reports on Progress in Physics · doi:10.1088/0034-4885/68/5/r04 · Cited by 908
Self-citationSynthesis and properties of colloidal heteronanocrystals
Donegá, C. D. M. (2011) · Chem. Soc. Rev. · doi:10.1039/c0cs00055h · Cited by 719
de Mello Donegá, C., Liljeroth, P., & Vanmaekelbergh, D. (2005) · Small · doi:10.1002/smll.200500239 · Cited by 511
Excitons in Metal‐Halide Perovskites
Baranowski, M., & Plochocka, P. (2020) · Advanced Energy Materials · doi:10.1002/aenm.201903659 · Cited by 425
Metadata
- Authors
- Labeau, O., Tamarat, P., & Lounis, B.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2003-06-26
- Volume
- 90
- Issue
- 25
- Pages
- 257404-257404
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2023222227
- Cited by
- 346
- References
- 0
- FWCI
- 8.05
- Type
- journal article
- Language
- en
- Open access
- green
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- Labeau, O., Tamarat, P., & Lounis, B. (2003). Temperature Dependence of the Luminescence Lifetime of SingleCdSe/ZnSQuantum Dots. Physical Review Letters. https://doi.org/10.1103/physrevlett.90.257404
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