Tunable and bimodal near-infrared luminescence in nanocrystal-in-AlPO_4 mesoporous glass composites
Tunable and bimodal near-infrared luminescence in nanocrystal-in-AlPO_4 mesoporous glass composites
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DOI：
10.1364/ome.5.000188
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发表时间：
2015
影响因子：
2.8
通讯作者：
Yan Wang;Jin He;Rihong Li;Xinqiang Yuan;Shiqing Xu;Long Zhang
中科院分区：
文献类型：
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作者：
Yan Wang;Jin He;Rihong Li;Xinqiang Yuan;Shiqing Xu;Long Zhang
通过在掺入介孔 AlPO4 玻璃的 PbS 量子点 (QD) 上设计不同的复合策略，实现了近红外可定制发光材料的新候选材料。透射电子显微镜图像和 X 射线光电子能谱表明 PbS QD 成功嵌入 AlPO4 中。光致发光光谱表征了近红外区域的典型发射，宽带为242 nm，并且在970和1224 nm处具有双峰光致发光，这是通过两种处理策略获得的。此外，由于 AlPO4 玻璃尺寸控制孔的选择性吸附，实现了 955 至 1061 nm 的可调荧光。
A new candidate as tailorable luminescent material in near infrared is achieved by designing different composited strategies on PbS quantum dots (QDs) incorporated mesoporous AlPO4 glass. Transmission electron microscopy images and X-ray photoelectron spectroscopy spectra reveal that PbS QDs were embedded in AlPO4 successfully. Photoluminescence spectra characterize a typical emission in near infrared region with a broadband of 242 nm and a bimodal photoluminescence at 970 and 1224 nm, which obtained by two processing strategies. Furthermore, as a result of selective adsorption by size controlled pores of AlPO4 glass, an adjustable fluorescence from 955 to 1061 nm is realized.