Enhanced up-converted fluorescence in fluorozirconate based glass ceramics for high efficiency solar cells
Enhanced up-converted fluorescence in fluorozirconate based glass ceramics for high efficiency solar cells
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用于高效太阳能电池的氟锆酸盐基玻璃陶瓷中增强的上转换荧光
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. Schweizer
中科院分区：
文献类型：
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作者：
B. Ahrens;B. Henke;P. Miclea;J. Johnson;S. Schweizer
另外掺杂钕和氯离子的氟锆酸盐玻璃的热处理导致这些玻璃陶瓷中的上转换荧光强度增强。样品在240°C和290°C之间退火，而对于270°C样品发现最佳值。我们研究了红外荧光、2光子上转换和3光子上转换荧光强度的功率依赖性以及相应的辐射寿命。与上转换强度类似，Nd3+荧光在约880 nm处的辐射寿命显著取决于退火温度：在270°C样品中观察到最长的寿命。
Thermal processing of as-made fluorozirconate glasses which were additionally doped with neodymium and chlorine ions leads to enhanced up-conversion fluorescence intensities in these glass ceramics. The samples were annealed between 240°C and 290°C while the optimum value was found for the 270°C sample. We investigated the power dependence of the infrared fluorescence, the 2-photon up-conversion, and the 3-photon up-conversion fluorescence intensities as well as the corresponding radiative lifetimes. In analogy to the up-conversion intensity, the radiative lifetime of the Nd3+ fluorescence at about 880 nm depends significantly on the annealing temperature: the longest lifetime was observed for the 270°C sample.