Pyranylidene/thienothiophene-based organic sensitizers for dye-sensitized solar cells

被引：22

作者：

Belen Marco, A. ^{[1
]}

Martinez de Baroja, Natalia ^{[1
]}

Maria Andres-Castan, Jose ^{[1
]}

Franco, Santiago ^{[1
]}

Andreu, Raquel ^{[1
]}

Villacampa, Belen ^{[2
]}

Orduna, Jesus ^{[1
]}

Garin, Javier ^{[1
]}

机构：

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

[2] Univ Zaragoza, CSIC, ICMA, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

来源：

DYES AND PIGMENTS | 2019年 / 161卷

关键词：

Dye-sensitized solar cells; Push-pull systems; 4H-pyranylidene; Thienothiophene; PUSH-PULL; PROAROMATIC DONORS; OPTICAL-PROPERTIES; CHROMOPHORES; PERFORMANCE; UNIT; ABSORPTION; THIOPHENE; BEARING; BITHIOPHENE;

D O I：

10.1016/j.dyepig.2018.09.035

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Novel push-pull systems featuring a 4H-pyranylidene donor fragment and thienothiophene as (part of) pi-conjugated spacer have been synthesized in order to test their photovoltaic properties. An analogous derivative with two thiophene rings is also included in the study for comparison purposes. The optical and electrochemical properties of the novel D-pi-A molecules have been discussed and DSSCs devices based on these dyes have been characterized. The photovoltaic performance is sensitive to the structural modification of the dye: the tert-butyl substituents on the pyranylidene moiety and the hexyl chains of the thienothiophene spacer were shown to improve the efficiency. A maximum power conversion efficiency of 6.41% has been achieved.

引用

页码：205 / 213

页数：9

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