抄録
We propose a new quantum dot system called multi-coupled quantum dots. In this system, since quantum dots couple with adjacent dots, the photoexcited carriers tunnel into the larger quantum dots which have lower energy states. This energy relaxation results in narrower and stronger photoluminescence than with conventional quantum dots. InAs/GaAs self-organized multi-coupled quantum dots show strong photoluminescence near 1.3 /дп at room temperature, whose intensity is as large as in the well-known highly efficient InGaAs/GaAs quantum wells.
本文言語 | English |
---|---|
ページ(範囲) | L405-L407 |
ジャーナル | Japanese journal of applied physics |
巻 | 34 |
号 | 4 |
DOI | |
出版ステータス | Published - 1995 4月 |
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)