Time-resolved study of carrier transfer among in as/ga as multi-coupled quantum dots

Atsushi Tackeuchi, Yoshiaki Nakata, Shunichi Muto, Yoshihiro Sugiyama, Tatsuya Usuki, Yuji Nishikawa, Naoki Yokoyama, Osamu Wada

研究成果: Article査読

62 被引用数 (Scopus)

抄録

Carrier transfer among InAs/GaAs self-organized multi-coupled quantum dots was studied using time-resolved photoluminescence. In the multi-coupled quantum dots, since quantum dots couple with the other dots laterally, the photoexcited carriers tunnel into the relatively larger quantum dots which have lower energy levels. The photoluminescence decay time of multi-coupled quantum dots strongly depends on the energy in contrast with conventional quantum dots. The energy dependence can be explained with a cascade-like tunneling model assuming a tunneling time between quantum dots of 1300 ps.

本文言語English
ページ(範囲)L1439-L1441
ジャーナルJapanese journal of applied physics
34
11
DOI
出版ステータスPublished - 1995 11
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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