Dr. Lei Li Profile

Dr. Lei Li

at HoHai universty

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Proceedings Article | 19 October 2016 Paper

Influence of Er3+ and Yb3+ concentration for upconversion emission in KLTN ceramics under 980nm laser excitation

Lei Li, Jing Jia, Ruixi Zhou

Proceedings Volume 10152, 101520Q (2016) https://doi.org/10.1117/12.2246498

KEYWORDS: Upconversion, Ceramics, Luminescence

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In this paper, we have investigated the upconversion luminescence properties of Er³⁺ doped and Er³⁺/Yb³⁺ codoped potassium lithium tantalate niobate (KLTN) ceramics. The green, red, and near infrared upconversion photoluminescence properties are analyzed by the steady-state spectra under 980 nm laser excitation. We research the relationship between UC fluorescence integral intensity and Er³⁺ / Yb³⁺ concentration. We research the pump energy dependence of UC luminescence intensities, and summarize the changing trend for the slopes n with Er³⁺/Yb³⁺ ions concentrations. Finally, we make steady-state rate equations to describe the power dependence behavior and the UC mechanism. The deduced results is consistent with experimental results.

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