掺铒联吡啶钌为探针分子压敏漆的制备及氧猝灭特性

Pressure-Sensitive Paint with Erbium-Doped Bipyridyl Ruthenium Probe:Preparation and Oxygen Quenching Properties

以2,2′-联吡啶,三氯化钌（RuCl3）,氯化铒（ErCl3）为原料合成了铒掺杂的探针分子。将探针分子加入到铕掺杂的硅溶胶基质中获得了铕、铒共掺杂的压敏漆样品。采用IR,SEM,EDS及荧光发射光谱对探针分子和压敏漆进行了表征。红外光谱结果表明,探针分子中联吡啶的结构没有被破坏。扫描电镜观察发现探针分子呈片状,EDS测试发现探针分子表面含有Er,Ru等元素。紫外吸收光谱表明压敏漆的最佳吸收波段位于200~500 nm处,选择410 nm作为激发光源,压敏漆在590 nm处有很强的荧光发射,并且随着空气压力的增大（即氧分子浓度的增加）,压敏漆的荧光发射强度降低,说明压敏漆具有较好的氧猝灭特性。

Erbium doped probe molecule was synthesized using bipyridyl,RuCl3,ErCl3 as the raw materials.Eu,Er co-doped pressure-sensitive paint samples were fabricated by adding the Er doped probe molecule into the Eu doped silica matrix.The pressure-sensitive paint and the probe molecule were characterized by IR,SEM,EDS and fluorescence emission spectroscopy.IR results show that the bipyridyl structure of the probe molecule is retained.SEM results indicate a petal-shape for the probe molecule.EDS results confirm that Er,Ru and other elements are found in the surface of pressure-sensitive paint.UV absorption spectra show that the absorption band of the pressure-sensitive paint is 200~500 nm,the strongest fluorescence emission peak is at 590 nm when the pressure-sensitive paint is excited by 410 nm,and the fluorescence intensity of the pressure-sensitive paint is decreased with the increase in oxygen concentration,indicating a good oxygen quenching characteristics of the pressure-sensitive paint.