Photoluminescent Lanthanide-Doped Silica Nanotubes: Sol鈭扜el Transcription from Functional Template

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• 作者：Yan Qiao ; Huanfa Chen ; Yiyang Lin ; Zhiyi Yang ; Xinhao Cheng ; Jianbin Huang
• 刊名：Journal of Physical Chemistry C
• 出版年：2011
• 出版时间：April 21, 2011
• 年：2011
• 卷：115
• 期：15
• 页码：7323-7330
• 全文大小：1166K
• 年卷期：v.115,no.15(April 21, 2011)
• ISSN：1932-7455

文摘

Functional photoluminescent materials have emerged as a fascinating research subject holding great promise in versatile applications. In this report, photoluminescent lanthanide-organic hybrid nanofibers in hydrogels are fabricated through supramolecular self-assembly, which can serve as functional soft templates to prepare inorganic nanomaterials. By using sol鈭抔el transcription of tetraethylorthosilicate (TEOS), novel lanthanide-doped silica nanotubes are conveniently prepared, in which lanthanide ions are embedded into the silica nanotube walls. In this approach, luminescent lanthanide ions transfer from organic nanofibers into inorganic silica nanotubes. Moreover, different kinds of lanthanide-doped silica nanotubes with tunable photoluminescent emission color can be achieved by changing the doping ions such as Tb³⁺ and co-doping Tb³⁺/Eu³⁺ in the soft template. The lanthanide-doped silica nanotubes are potentially used as nanostructured optical devices and sensors.