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Color Tunable Upconversion Emission in Yb, Er Co-Doped Bismuth Titanate Inverse Opal

Authors

  • Zhengwen Yang,

    1. Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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  • Lei Yan,

    1. Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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  • Dong Yan,

    1. Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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  • Zhiguo Song,

    1. Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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  • Dacheng Zhou,

    1. Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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  • Zhaoyi Yin,

    1. Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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  • Jianbei Qiu

    Corresponding author
    • Key Lab of Advanced Materials in Rare & Precious and Non-ferrous Metals, Ministry of Education, Key Laboratory of Advanced Materials of Yunnan Province, College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
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Author to whom correspondence should be addressed. e-mail: qiu@kmust.edu.cn.

Abstract

Upconversion emission of Yb, Er co-doped Bi4Ti3O12 (Bi4Ti3O12: Yb, Er) inverse opal photonic crystals was investigated. Strong green (548 nm) and red (660 nm) upconversion emission bands were observed under a 980 nm excitation at room temperature. The results showed that the intensity of upconversion emission bands can be tuned by controlling the structure of the inverse opal. Significant suppression of the green or red upconversion emission was obtained if the photonic band gap overlaps with the Er3+ ions emission band, resulting in color tunable up-conversion photonic crystals with applications in solid-state color displays.

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