Fabrication of self-assembling InGaN and AlGaN quantum dots on AlGaN surfaces using anti-surfactant

Hideki Hirayama, Satoru Tanaka, Yoshinobu Aoyagi

Research output: Contribution to journalConference articlepeer-review


We demonstrate InGaN and AlGaN quantum dots (QDs) formation on AlGaN surfaces vir metal organic chemical vapor deposition (MOCVD). Si anti-surfactant was used in order to modify surface energy balance for changing growth mode from 2-dimensional step-flow growth to 3-dimensional nano-scale island formation. The average lateral size and thickness of the InGaN and AlGaN QDs are 10-20 nm and 5 nm, respectively. Intense photoluminescence (PL) was observed from InGaN QDs even in room temperature. In and Al incorporation in InGaN and AlGaN QDs were estimated to be 22-52% and 1-5%, respectively, from the PL spectrum.

Original languageEnglish
Pages (from-to)251-253
Number of pages3
JournalMicroelectronic Engineering
Issue number1
Publication statusPublished - Jun 1999
Externally publishedYes
EventProceedings of the 1998 4th International Symposium on New Phenomena in Mesoscopic Structures (NPMS'98) - Kauai, HI, USA
Duration: Dec 7 1998Dec 11 1998

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering


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