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ErF3 microcrystals controllably deposited in perfluoride glass for upconversion red emission

Ruite Liu, Linjia Hu, Zaiyang Wang, Wenkai Zhao, Longfei Zhang, Yiguang Jiang, and Long Zhang

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Abstract

To the best of our knowledge, this paper first reports ErF3 microcrystals controllably deposited in perfluoride glass using phase-separation engineering techniques. The sample exhibited strong upconversion red-light emission owing to the small distance between Er3+ ions and low phonon energy (585 cm−1). The sample has a high red/green ratio of up to 18.6, which, to our knowledge, is the highest reported value in Er3+-doped fluoride glass ceramics. Furthermore, the sample has a long fluorescence lifetime (3.18 ms @660 nm), good color saturation (0.6255,0.3707), and good thermal stability ($\boldsymbol{\varDelta}\boldsymbol{E} = 0.31\boldsymbol{eV}$). Therefore, this sample has the potential for application across multiple fields, such as color display, visible laser, and lighting.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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