Room-temperature random telegraph noise in luminescence from macroscopic InGaN clusters

Takao Aoki, Yukie Nishikawa, Makoto Kuwata-Gonokami*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We report on photoluminescence properties of individual macroscopically sized InGaN clusters that were formed in InGaN multiple quantum wells. Phase separation in InGaN results in the formation of clusters with a size of 1-2 μm with three different indium compositions. A small fraction (one in 100-1000) of the clusters shows random telegraph noise in luminescence at room temperature. Superlinear dependence of the luminescence switching rate on excitation intensity indicates that the switching is induced by the cooperation of multiple carriers.

Original languageEnglish
Pages (from-to)1065-1067
Number of pages3
JournalApplied Physics Letters
Issue number8
Publication statusPublished - 2001 Feb 19
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Room-temperature random telegraph noise in luminescence from macroscopic InGaN clusters'. Together they form a unique fingerprint.

Cite this