Breakdown of the Phonon Bottleneck Effect in Self-Assembled Quantum Dots
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概要
- 論文の詳細を見る
Spectral and temporal behavior of photoluminescence of site-selectively excited InP self-assembled quantum dots were studied in external electric fields. External electric field accelerates the nonradiative relaxation and competing fast phonon mediated relaxation processes make prominent structures in the static spectra. The spectra agree with the time-resolved spectra around the time zero and reflect the phonon relaxation rate. Acoustic phonon mediated carrier relaxation is much faster than predicted theoretically. The increases of the excitation intensity, temperature, electric current and charging of quantum dots accelerate the relaxation of the carriers in quantum dots, indicating build-up of Auger-like processes. This observation demonstrates the breakdown of the predicted phonon bottleneck effect not only at the condition for the practical application of the quantum dots but also at low temperature and under weak excitation.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-03-30
著者
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Lee Jeong-sik
Single Quantum Dot Project
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IGNATIEV Ivan
Single Quantum Dot Project
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KOZIN Igol
Single Quantum Dot Project
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DAVYDOV Valentin
Single Quantum Dot Project
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NAIR Selvakumar
Single Quantum Dot Project
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SUGOU Shigeo
Single Quantum Dot Project
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Ren Hong-wen
Single Quantum Dot Project Erato Jst Tsukuba Research Consortium:applied Optelectronics Incorporatio
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Masumoto Yasuaki
Single Quantum Dot Project Erato Japan Science And Technology Corporation:institute Of Physics Unive
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Nair Selvakumar
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
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Lee Jeong-Sik
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
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Davydov Valentin
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
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Ren Hong-Wen
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
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Sugou Shigeo
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
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Masumoto Yasuaki
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
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Ignatiev Ivan
Single Quantum Dot Project, ERATO, JST, TRC, Tsukuba 300-2635, Japan
関連論文
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