Correlation between near infrared emission and bismuth radical species of Bi2O3 -containing aluminoborate glass

Hirokazu Masai, Yoshihiro Takahashi, Takumi Fujiwara, Takenobu Suzuki, Yasutake Ohishi

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10 Citations (Scopus)


A strong correlation between bismuth radical species and emission in the near infrared (NIR) region of SnO-doped bismuth-containing aluminoborate glass, (CaO- B2 O3 - Bi2 O3 - Al 2 O3 - TiO2) (CaBBAT), was observed. Since the activation energy of the NIR emission was similar to that of electron spin resonance signal, it is expected that bismuth radical species in the CaBBAT glass is an origin of the NIR emission. Compared to the observed emission spectra with energy diagram of previous data, we have confirmed that bismuth ion possessing low valence is the origin of broad emission in the NIR region.

Original languageEnglish
Article number103523
JournalJournal of Applied Physics
Issue number10
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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