Dual-Functional Tris(2-phenylpyridine) Iridium Nanowires: Luminescent and Electrochemiluminescent Sensors
Dual-Functional Tris(2-phenylpyridine) Iridium Nanowires: Luminescent and Electrochemiluminescent Sensors
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双功能三(2-苯基吡啶)铱纳米线：发光和电化学发光传感器
DOI：
10.1166/sl.2013.2748
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发表时间：
2013-02
期刊：
影响因子：
--
通讯作者：
Gu, Zhanjun
中科院分区：
文献类型：
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作者：
Xiao, Debao;Liu, Lili;Gu, Zhanjun
本工作采用溶剂挥发法制备了三(2-苯基吡啶)Ir(III)(Ir(Ppy)(3))纳米线。将所制备的纳米线直接固定在ITO玻璃表面。我们发现，一方面，Ir(Ppy)3纳米线可以作为检测亚甲基蓝和葡萄糖的磷光传感器。另一方面，在共反应物三丙胺存在下，纳米线也显示出很强的电致化学发光。结果表明，Ir(Ppy)(3)纳米线可以作为电化学发光传感器，用于亚甲基蓝和葡萄糖的化学和生物检测，其灵敏度比用该纳米线制备的发光传感器高2个数量级。这项工作明确地展示了有机功能分子的双功能、发光和电化学发光纳米结构的应用扩展。
In this work, the nanowires from tris(2-phenylpyridine) iridium(III) (Ir(ppy)(3)) have been prepared through a solvent evaporation procedure. The as-prepared nanowires are immobilized directly onto ITO glass surface. We found that, on the one hand, the Ir(ppy)3 nanowires can be employed as the phosphorescent sensor for detection of methylene blue and glucose. One the other hand, the nanowires also exhibit strong electrochemiluminescent emission in the presence of the co-reactant tripropylamine. It is then demonstrated that Ir(ppy)(3) nanowires can be employed as ECL sensors, chemically and biologically, for detection of methylene blue and glucose with a sensitivity of 2 orders of magnitudes higher than that of the luminescent sensor prepared using these nanowires. This work unambiguously demonstrates an application extension of the dual-functional, luminescent and electrochemiluminescent, nanostructured architectures of organic functional molecules.