New D-π-A-Conjugated Organic Sensitizers Based on 4H-Pyran-4-ylidene Donors for Highly Efficient Dye-Sensitized Solar Cells

被引：55

作者：

Franco, Santiago ^{[1
]}

Garin, Javier ^{[1
]}

Martinez De Baroja, Natalia ^{[1
]}

Perez-Tejada, Raquel ^{[1
]}

Orduna, Jesus ^{[1
]}

Yu, Youhai ^{[2
]}

Lira-Cantu, Monica ^{[2
]}

机构：

[1] Univ Zaragoza, CSIC, ICMA, Dept Quim Organ, E-50009 Zaragoza, Spain

[2] Ctr Invest Nanociencia & Nanotecnol, CSIC, Lab Nanostruct Mat Photovolta Energy, E-08193 Barcelona, Spain

来源：

ORGANIC LETTERS | 2012年 / 14卷 / 03期

关键词：

PERFORMANCE;

D O I：

10.1021/ol203298r

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We have synthesized a series of four new promising D-pi-A conjugated organic sensitizers with a proaromatic 4H-pyran-4-ylidene as a donor, a thiophene ring in the bridge, and 2-cyanoacrilic acid as acceptor. Comparison between different donor substituents and the modification of the thiophene ring resulted in molar extinction coefficients as high as 36399 M-1 cm(-1) at 551 nm. The photovoltaic properties of the DSSCs demonstrate power conversion efficiencies as high as 5.4%.

引用

页码：752 / 755

页数：4

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