Infrared to ultraviolet upconversion luminescence in Nd3+ doped nano-glass-ceramic
来源期刊：Journal of Rare Earths2008年第3期
论文作者：陈大钦 王元生 余运龙 刘锋 黄萍
文章页码：428 - 432
摘 要：Nd3+ doped transparent oxyfluoride glass ceramic containing β-YF3 nanocrystals was prepared and the upconversion luminescence behaviors of Nd3+ in the precursor glass and glass ceramic were investigated. Under 796 nm laser excitation, ultraviolet upconversion emissions of Nd3+ ions at 354 nm （4D3/2→4I9/2） and 382 nm （4D3/2→4I11/2） were observed at room temperature. Power dependence analysis demonstrated that three-photon upconversion processes populated the 4D3/2 excited state. In comparison with those of the precursor glass, the ultraviolet emissions were enhanced by a factor of 500 in the glass ceramic, which was attributed to the change in the ligand field of Nd3+ ions and the decrease in phonon energy because of the partition of Nd3+ ions into the β-YF3 nanocrystals after crystallization.
陈大钦，王元生，余运龙，刘锋，黄萍
摘 要：Nd3+ doped transparent oxyfluoride glass ceramic containing β-YF3 nanocrystals was prepared and the upconversion luminescence behaviors of Nd3+ in the precursor glass and glass ceramic were investigated. Under 796 nm laser excitation, ultraviolet upconversion emissions of Nd3+ ions at 354 nm （4D3/2→4I9/2） and 382 nm （4D3/2→4I11/2） were observed at room temperature. Power dependence analysis demonstrated that three-photon upconversion processes populated the 4D3/2 excited state. In comparison with those of the precursor glass, the ultraviolet emissions were enhanced by a factor of 500 in the glass ceramic, which was attributed to the change in the ligand field of Nd3+ ions and the decrease in phonon energy because of the partition of Nd3+ ions into the β-YF3 nanocrystals after crystallization.
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