Extremely efficient electrochemiluminescence systems based on tris(2-phenylpyridine)iridium(III)

被引：97

作者：

Kapturkiewicz, A ^{[1
]}

Angulo, G ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

来源：

DALTON TRANSACTIONS | 2003年 / 20期

关键词：

D O I：

10.1039/b308964a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Electron transfer generation of the excited tris(2-phenylpyridine) iridium(III) Ir-3*(ppy)(3) has been studied in acetonitrile-dioxane (1:1) solutions containing 0.1 M (n-C4H9)(4)NPF6 as the supporting electrolyte. A triple-potential-step technique was used to create electrochemiluminescence (ECL) emission by annihilation of the electrochemically generated ions Ir(ppy)(3)(+) + Ir(ppy)(3)(-) (single ECL system) as well as Ir(ppy)(3)(+) + A(-) (mixed ECL systems with the radical anions of aromatic nitriles and ketones). Very high ECL emission efficiencies (up to 0.67, close to the excited Ir-3*(ppy)(3) luminescence yield of 0.75) have been found.

引用

页码：3907 / 3913

页数：7

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