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首页> 外文期刊>Optics Letters >Efficient near-infrared emission from neodymium by broadband sensitization of bismuth in zeolites
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Efficient near-infrared emission from neodymium by broadband sensitization of bismuth in zeolites

机译：沸石对铋的宽带敏化可有效地发射钕的近红外光

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摘要

Nd-Bi codoped zeolites were prepared by an ion-exchange process, and the optical properties were investigated by photoluminescence (PL) and PL excitation spectra, and decay time measurements. The results show that the NIR emission of Nd~(3+) ions is significantly enhanced by the introduction of bismuth in codoped samples, and the lifetime reaches 246(mu)s. It is also observed that NIR-active Bi acts as a sensitizer of Nd~(3+) ions. The energy transfer efficiency is also estimated. The peculiar optical properties make Nd-Bi codoped zeolites promising for potential application in biological probes.
机译：通过离子交换法制备了Nd-Bi共掺杂沸石，并通过光致发光（PL）和PL激发光谱以及衰减时间测量研究了光学性质。结果表明，通过在共掺杂样品中引入铋，Nd〜（3+）离子的NIR发射显着增强，寿命达到246μs。还观察到，NIR活性Bi充当Nd〜（3+）离子的敏化剂。还估计了能量转移效率。独特的光学性能使Nd-Bi共掺杂沸石有望在生物探针中潜在应用。

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