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一种保护和敏化近红外发光Nd3+和Yb3+：有机环庚三烯酚酮配体以敏化Ln(3+)掺杂的NaYF4纳米晶体的策略。

A strategy to protect and sensitize near-infrared luminescent Nd3+ and Yb3+: organic tropolonate ligands for the sensitization of Ln(3+)-doped NaYF4 nanocrystals.

作者信息

Zhang Jian, Shade Chad M, Chengelis Demetra A, Petoud Stéphane

机构信息

Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.

出版信息

J Am Chem Soc. 2007 Dec 5;129(48):14834-5. doi: 10.1021/ja074564f. Epub 2007 Nov 10.

DOI:10.1021/ja074564f
PMID:17994740
Abstract

A strategy to sensitize and protect near-infrared (NIR) emitting Nd3+ and Yb3+ is presented. Combining protection provided by the inorganic matrix of NaYF4 nanocrystals and sensitization from tropolonate ligands capped on their surface, the lanthanide cation centered luminescence was observed through the ligand excitation. The extended lanthanide luminescence lifetimes indicate the success of this strategy.

摘要

提出了一种使近红外（NIR）发射的Nd3+和Yb3+敏化并保护的策略。结合NaYF4纳米晶体无机基质提供的保护以及其表面封端的托酚酮配体的敏化作用，通过配体激发观察到了以镧系阳离子为中心的发光。延长的镧系发光寿命表明了该策略的成功。

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