Ho~(3+)/Yb~(3+)∶8YSZ纳米粉体制备及发光性能研究
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摘要
通过化学共沉淀法制备Ho~(3+)/Yb~(3+)共掺杂的氧化钇稳定的氧化锆(8YSZ)纳米粉体。研究了煅烧温度对Ho~(3+)/Yb~(3+)共掺杂8YSZ纳米粉体荧光光谱和上转换发光性能的影响。结果表明:在448 nm波长激发光激发下,Ho~(3+)/Yb~(3+)∶8YSZ纳米粉体有一个549 nm的绿光发射峰,随着煅烧温度的升高,Ho~(3+)/Yb~(3+)∶8YSZ纳米粉体的荧光强度先升高后降低。980 nm波长激光激发下,Ho~(3+)/Yb~(3+)∶8YSZ纳米粉体在450~750 nm范围内有一个中心波长在539 nm的绿光发射峰和一个中心波长在650 nm的红光发射峰,随着煅烧温度的升高,纳米粉体的颗粒尺寸增大的同时,其上转换发光强度也逐渐增大。
Ho~(3+)/Yb~(3+) co-doped yttria-stabilized zirconia( 8YSZ) nano powders were prepared by chemical coprecipitation. The effect of calcination temperatures on the fluorescence spectra and upconversion luminescence properties of the Ho~(3+)/Yb~(3+)co-doped nano 8 YSZ was investigated. The results show that the Ho~(3+)/Yb~(3+) co-doped 8 YSZ nano powders have a green emission peak at 549 nm under excitation of the 448 nm wavelength excitation light. The luorescence intensity of the Ho~(3+)/Yb~(3+)codoped 8 YSZ nanopowders increases first, and then decreases with increasing the calcination temperatures. Under excitation of the 980 nm wavelength laser, the Ho~(3+)/Yb~(3+)co-doped 8 YSZ nanopowders have a green emission peak at a central wavelength of 539 nm and a red emission peak at a central wavelength of 650 nm in the range of 450-750 nm. With increasing the calcination temperatures,the particle sizes of the nano powders increase and the upper conversion luminescence intensity also gradually increases.
Ho~(3+)/Yb~(3+) co-doped yttria-stabilized zirconia( 8YSZ) nano powders were prepared by chemical coprecipitation. The effect of calcination temperatures on the fluorescence spectra and upconversion luminescence properties of the Ho~(3+)/Yb~(3+)co-doped nano 8 YSZ was investigated. The results show that the Ho~(3+)/Yb~(3+) co-doped 8 YSZ nano powders have a green emission peak at 549 nm under excitation of the 448 nm wavelength excitation light. The luorescence intensity of the Ho~(3+)/Yb~(3+)codoped 8 YSZ nanopowders increases first, and then decreases with increasing the calcination temperatures. Under excitation of the 980 nm wavelength laser, the Ho~(3+)/Yb~(3+)co-doped 8 YSZ nanopowders have a green emission peak at a central wavelength of 539 nm and a red emission peak at a central wavelength of 650 nm in the range of 450-750 nm. With increasing the calcination temperatures,the particle sizes of the nano powders increase and the upper conversion luminescence intensity also gradually increases.
引文
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[7]严辉,盖红,王如志,等.Yb3+、Ho3+共掺杂的Na YF4上转换发光材料制备及其发光性能[J].北京工业大学学报,2016,42(10):1441-1445.
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