Tunable broadband photoluminescence from bismuth‐doped calcium aluminum germanate glasses prepared in oxidizing atmosphere

GND
1298975425
ORCID
0000-0001-7631-2797
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Cao, Jiangkun;
ORCID
0000-0002-6167-4098
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Ding, Yicong;
GND
1163952214
ORCID
0000-0002-9716-7178
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Limbach, René;
GND
1216270465
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Nozari, Vahid;
GND
1217624228
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Sajzew, Roman;
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Sun, Minghui;
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Zhang, Pengzhu;
GND
128981741
ORCID
0000-0002-0747-3076
Affiliation
Otto Schott Institute of Materials Research Friedrich Schiller University Jena Jena Germany
Wondraczek, Lothar

Tunable photoluminescence (PL) from transparent inorganic glass matrices is of interest for applications demanding a semitransparent photoconverter that does not elastically scatter incoming light. For this purpose, bismuth (Bi)‐doped optical materials exhibit unique spectral characteristics in terms of bandwidth and emission tunability. Here, we demonstrate a facile route for preparing such converters from Bi‐doped calcium‐aluminate and calcium‐aluminogermanate glasses. These glasses offer tunable PL across the near violet and visible‐to‐near‐infrared (NIR) spectral range, with an emission lifetime in the range of 300 μs. The addition of GeO 2 exerts a decrease in optical basicity, which in turn enables the stabilization of NIR‐active low‐valence Bi species for broadband NIR PL.

Cite

Citation style:
Could not load citation form.

Rights

License Holder: © 2022 The American Ceramic Society.

Use and reproduction: