Enhance the performance of dye-sensitized solar cells by Co-grafting amphiphilic sensitizer and hexadecylmalonic acid on TiO2 nanocrystals

被引：694

作者：

Wang, P ^{[1
]}

Zakeeruddin, SM ^{[1
]}

Comte, P ^{[1
]}

Charvet, R ^{[1
]}

Humphry-Baker, R ^{[1
]}

Grätzel, M ^{[1
]}

机构：

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

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 51期

关键词：

D O I：

10.1021/jp0365965

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dye-sensitized solar cells have been fabricated based on nanocrystalline TiO2 film derivatized with an amphiphilic polypyridyl ruthenium complex, cis-RuLL'(SCN)(2) (L = 4,4'-dicarboxylic acid-2,2'-bipyridine, L' = 4,4'-dinonyl-2,2'-bipyridine), as light-harvester and hexadecylmalonic acid (HDMA) as coadsorbent. The cells generated a short-circuit photocurrent of 15.2 mA cm(-2), an open-circuit photovoltage of 764 mV, and a total power conversion efficiency of 7.8% under simulated full sunlight (air mass 1.5, 100 mW cm(-2)). Co-grafting enhanced the photocurrent, photovoltage, and overall conversion efficiency considerably with respect to cells containing no HDMA. Devices showed a good stability under light soaking at 55 degreesC.

引用

页码：14336 / 14341

页数：6

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