基于锡纳米团簇和 PMMA 的近红外发光共聚杂化材料。

Near-infrared luminescent copolymerized hybrid materials built from tin nanoclusters and PMMA.

机构信息

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Changchun 130022, People's Republic of China.

出版信息

Nanoscale. 2010 Oct;2(10):2096-103. doi: 10.1039/c0nr00233j. Epub 2010 Aug 5.

DOI:10.1039/c0nr00233j

PMID:20689878

Abstract

Novel near-infrared (NIR) luminescent copolymerized hybrid materials were prepared by covalently grafting and physically doping Ln complexes (Ln = Er, Sm, Yb, and Nd) into a copolymer matrix built from nanobuilding blocks. The structures of the obtained hybrid materials were investigated by Fourier transform infrared (FTIR) spectra, nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), and thermogravimetric analysis (TGA). In the photoluminescence studies, the hybrid materials showed characteristic NIR luminescence of corresponding Ln(3+) ions through intramolecular energy transfer from ligands to Ln(3+) ions. Transparent films of these materials can be easily prepared through spin-coating on indium tin oxide (ITO) glasses taking advantage of the matrix nature.

摘要

新型近红外（NIR）发光共聚杂化材料通过共价接枝和物理掺杂Ln 配合物（Ln = Er、Sm、Yb 和 Nd）到纳米构建块构建的共聚物基质中制备而成。通过傅里叶变换红外（FTIR）光谱、核磁共振（NMR）、凝胶渗透色谱（GPC）和热重分析（TGA）对所得杂化材料的结构进行了研究。在光致发光研究中，杂化材料通过配体到 Ln（3+）离子的分子内能量转移显示出相应 Ln（3+）离子的特征近红外发光。利用基质性质，这些材料的透明薄膜可以通过在铟锡氧化物（ITO）玻璃上旋涂很容易地制备。