Molecular engineering on semiconductor surfaces:: design, synthesis and application of new efficient amphiphilic ruthenium photo sensitizers for nanocrystalline TiO2 solar cells

被引：64

作者：

Lagref, JJ ^{[1
]}

Nazeeruddin, MK ^{[1
]}

Grätzel, M ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Lab Photon & Interfaces, Inst Mol & Biol Chem, CH-1015 Lausanne, Switzerland

来源：

SYNTHETIC METALS | 2003年 / 138卷 / 1-2期

关键词：

solar cell; sensitizer; hydrogen bonding; amide complexes;

D O I：

10.1016/S0379-6779(03)00034-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new series of amphiphilic heteroleptic ruthenium(II) sensitizers [Ru(H(2)dcbpy)(dhbpy)(NCS)(2)] (CI), [Ru(H(2)dcbpy)(dchobpy)(NCS)(2)] (C2), [Ru(H(2)dcbpy)(mubpy)(NCS)(2)] (C3), [Ru(H(2)dcbpy)(dhabpy)(NCS)(2)] (C4) have been developed and fully characterized by UV-visible, emission. NMR and cyclic voltammetric studies (where mubpy 4-methyl-4'-perfluoro 1H, 1H, 2H, 2H, 3H, 3H undecyl-2,2'-bipyridine, dhabpy = 4-4'-dihexylamide-2,2'-bipyridine, dhbpy = 4-4'-dihexyl-2,2'-bipyridine, dchobpy = 4-4'-dicholesteryl-2,2'-bipyridine). The amphiphilic amide heteroleptic ruthenium(11) sensitizers, when anchored to nanocrystalline TiO2 films from ethanol solutions, achieve very efficient sensitization in the visible range yielding approximate to 80% incident photon-to-current conversion efficiency (IPCE) and display a short 2 circuit photocurrent density of 15 mA/cm(2) and an open circuit voltage of 0.75 V corresponding to an overall conversion efficiency of 7.4% under standard AM 1.5 sunlight. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：333 / 339

页数：7

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