Green-emissive Mn-activated nanocrystallized glass with willemite-type Zn2GeO4

Yoshihiro Takahashi, Masataka Ando, Rie Ihara, Takumi Fujiwara

Research output: Contribution to journalArticlepeer-review


We fabricated Mn2+-activated nanocrystallized glasses (NCG) with willemite-type Zn2GeO4 from a zincogermanate system glass added by various MnO-concentrations, and examined their photoluminescence (PL) properties. The Mn2+-activated NCGs indicated bright green-emission based on the 4T16A1 transition of the Mn2+, indicating exclusive Mn2+-occupation of Zn site in the Zn2GeO4 nanocrystals. In addition, green long-lasting photoluminescence (LLP) was also observed in the NCGs with low MnO-concentration. Relation between the MnO-concentration and the LLP property was also considered.

Original languageEnglish
Pages (from-to)372-378
Number of pages7
JournalOptical Materials Express
Issue number3
Publication statusPublished - 2011 Jul


  • (160.2540) Fluorescent and luminescent materials
  • (160.2750) Glass and other amorphous materials
  • (250.5230) Photoluminescence


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