Electron relaxation time in semiconductor quantum dots, for terahertz transition energies, can be slowed down to the nanosecond range — a very encouraging result for the development of quantum-dot-based quantum cascade lasers.
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References
Zibik, E. A. et al. Nature Mater. 8, 803–807 (2009).
Ferreira, R. & Bastard, G. Phys. Rev. B 40, 1074–1086 (1989).
Faist, J. et al. Science 264, 553–556 (1994).
Köhler, R. et al. Nature 417, 156–159 (2002).
Kumar, S., Hu, Q. & Reno, J. L. Appl. Phys. Lett. 94, 131105 (2009).
Wingreen, N. S. & Stafford, C. A. IEEE J. Quantum Elect. 33, 1170–1173 (1997).
Hsu, C. F. et al. IEEE J. Sel. Top. Quant. 6, 491–503 (2000).
Li, X.-Q., Nakayama, H. & Arakawa, Y. Phys. Rev. B 59, 5069–5073 (1999).
Zibik, E. A. et al. Phys. Rev. B 70, 161305 (2004).
Wasserman, D. et al. Appl. Phys. Lett. 88, 191118 (2006).
Chassagneux, Y. et al. Appl. Phys. Lett. 90, 091113 (2007).
Garcia, C. P. et al. Phys. Rev. Lett. 95, 266806 (2005).
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Tredicucci, A. Long life in zero dimensions. Nature Mater 8, 775–776 (2009). https://doi.org/10.1038/nmat2541
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DOI: https://doi.org/10.1038/nmat2541
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