Analyzing oxygen and silicon incorporation in GaN microstructures composed of c-planes and angled facets by confocal magneto-photoluminescence microscopy

Akinori Kamiyama, Kazunobu Kojima, Shigefusa F. Chichibu, Go Yusa

Research output: Contribution to journalArticlepeer-review

Abstract

Unintentionally doped impurities formed in the microstructures of free-standing GaN grown with facets were studied using confocal magneto-photoluminescence (PL) microscopy. Donor-bound exciton related peaks in PL spectra and their magnetic behavior allowed us to distinguish typical donor impurity atoms, such as silicon and oxygen. Combining this technique with confocal microscopy also revealed the spatial distribution of the impurities. The results showed that angled facets tend to incorporate oxygen.

Original languageEnglish
Article number035215
JournalAIP Advances
Volume10
Issue number3
DOIs
Publication statusPublished - 2020 Mar 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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