Effects of Crystal Structure on Up-conversion Luminescence in Er3+/Yb3+ Co-doped SrTa4O11
Effects of Crystal Structure on Up-conversion Luminescence in Er3+/Yb3+ Co-doped SrTa4O11
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DOI：
10.1246/cl.180605
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发表时间：
2018-08
影响因子：
1.6
通讯作者：
Sayaka Tamura;M. Iwaoka;Y. Sato;Makoto Kobayasi;M. Kakihana;K. Tomita
中科院分区：
文献类型：
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作者：
Sayaka Tamura;M. Iwaoka;Y. Sato;Makoto Kobayasi;M. Kakihana;K. Tomita
The effects of the host crystal structure of an SrTa4O11:Er3+/Yb3+ up-conversion (UC) phosphor on its luminescence properties were investigated using the tetragonal tungsten bronze (TTB) and hexagonal polymorphs of the SrTa4O11 host. Hexagonal SrTa4O11:Er3+/Yb3+ showed bright luminescence, whereas the UC emission intensity of TTB SrTa4O11:Er3+/Yb3+ was very weak, corresponding to ≈1% that of the hexagonal phase. This result was attributed to the local crystal structure around the rare-earth ions in the host lattice.
