DESIGN OF ANTENNA-SENSITIZER POLYNUCLEAR COMPLEXES - SENSITIZATION OF TITANIUM-DIOXIDE WITH [RU(BPY)2(CN)2]2RU(BPY(COO)2)22-

被引：275

作者：

AMADELLI, R ^{[1
]}

ARGAZZI, R ^{[1
]}

BIGNOZZI, CA ^{[1
]}

SCANDOLA, F ^{[1
]}

机构：

[1] UNIV FERRARA,CNR,CTR FOTOCHIM,DIPARTIMENTO CHIM,I-44100 FERRARA,ITALY

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1990年 / 112卷 / 20期

关键词：

D O I：

10.1021/ja00176a003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The use of antenna-sensitizer molecular devices is proposed as a possible strategy to increase the light harvesting efficiency of sensitized semiconductors. To illustrate this approach, the cyano-bridged trinuclear complex [Ru(bpy)2-(CN)2]2Ru(bpy(COO)2)22- has been synthesized and studied. The complex adsorbs on TiO2 via the negativity charged-Ru(bpy(COO)2)2- central unit. The photophysical behavior in solution and the photoelectrochemical behavior on TiO2 have been studied. Emission and excitation spectra show that in this complex the light energy absorbed by the terminal Ru(bpy)2(CN)2 (antenna) groups is efficiently funneled to the central-Ru(bpy(COO)2)2- (sensitizer) fragment. Photochemical spectra on TiO2 demonstrate that the light absorbed by the antenna fragments is efficiently used for sensitization of the semiconductor. © 1990, American Chemical Society. All rights reserved.

引用

页码：7099 / 7103

页数：5

共 24 条

[1]

BALAZANI V, 1990, SUPRAMOLECULAR PHOTO

[2]

Balzani V., 1987, SUPRAMOLECULAR PHOTO

[3] OLIGOMERIC DICYANOBIS(POLYPYRIDINE)RUTHENIUM(II) COMPLEXES - SYNTHESIS AND SPECTROSCOPIC AND PHOTOPHYSICAL PROPERTIES [J].