Direct observation of phonon relaxation bottleneck in InAs quantum dots of high-uniformity

T. Kitamura, R. Ohtsubo, M. Murayama, T. Kuroda, K. Yamaguchi, A. Tackeuchi*

*この研究の対応する著者

研究成果: Conference article査読

13 被引用数 (Scopus)

抄録

The intersubband carrier relaxation dynamics in InAs quantum dots of high-uniformity has been investigated using time-resolved photoluminescence measurement. The clearly separated photoluminescence spectra of the ground state and the second state were observed. The rate equation analysis gives the intersubband relaxation time from the second state to the ground state of 360 ps at 10 K. The slow intersubband relaxation can be attributed to the phonon relaxation bottleneck. The intersubband relaxation time at room temperature is evaluated to be 320 ps by extrapolation of 10-200 K data.

本文言語English
ページ(範囲)1165-1168
ページ数4
ジャーナルPhysica Status Solidi C: Conferences
4
DOI
出版ステータスPublished - 2003
イベント2nd International Conference on Semiconductor Quantum Dots, QD 2002 - Tokyo, Japan
継続期間: 2002 9 302002 10 3

ASJC Scopus subject areas

  • 凝縮系物理学

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