Evidence of quantum dot-like nano-objects in InGaN quantum wells provided by narrow photoluminescence spectra from localized exciton

H. Gotoh*, T. Akasaka, T. Tawara, Y. Kobayashi, T. Makimoto, H. Nakano

*この研究の対応する著者

研究成果: Conference article査読

抄録

We report on narrow photoluminescence (PL) spectra obtained from spatially localized excitons in InGaN quantum wells (QW). These PL lines (less than 1 meV wide) are clearly detected in QWs on several buffer structures and substrates with the micro-PL technique in low temperature regions. A narrow PL spectrum is one of the characteristics of an exciton confined in a quantum dot (QD). Our results directly confirm that QD-like nano-objects exist in InGaN QWs.

本文言語English
ページ(範囲)2350-2353
ページ数4
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
4
7
DOI
出版ステータスPublished - 2007
外部発表はい
イベントInternational Workshop on Nitride Semiconductors, IWN 2006 - Kyoto, Japan
継続期間: 2006 10月 222006 10月 27

ASJC Scopus subject areas

  • 凝縮系物理学

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