Synchronously Reduced Surface States, Charge Recombination, and Light Absorption Length for High-Performance Organic Dye-Sensitized Solar Cells

被引：179

作者：

Li, Renzhi ^{[1
,2
]}

Liu, Jingyuan ^{[1
]}

Cai, Ning ^{[1
,2
]}

Zhang, Min ^{[1
]}

Wang, Peng ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2010年 / 114卷 / 13期

基金：

美国国家科学基金会;

关键词：

EFFICIENT; THIOPHENE; DESIGN; FURAN;

D O I：

10.1021/jp101222s

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：

We employ the 4,4-dihexyl-4H-cyclopenta[2,1-b:3,4-b']dithiophene (CPDT) segment as a conjugated spacer to construct an extremely high-molar-absorption-coefficient organic chromophore for dye-sensitized solar cells, exhibiting a high power conversion efficiency of 8.95% measured under irradiation of 100 mW cm(-2) AM1.5G sunlight. Our comparative experiments have proved the prominent merit of employing CPDT instead of the prevailing 2,2'-dithiophene (DT) as the building block for the further dye design. We also have demonstrated that a controllable coassembling of dye molecules and electrolyte components on semiconducting nanocrystals can reduce surface states and inhibit charge recombination synchronously.

引用

页码：4461 / 4464

页数：4

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