Improving the photovoltaic performance by employing alkyl chains perpendicular to the π-conjugated plane of an organic dye in dye-sensitized solar cells

被引：39

作者：

Chen, Hongjin ^{[1
]}

Lyu, Guangyu ^{[1
]}

Yue, Youfeng ^{[2
]}

Wang, Tingwei ^{[1
]}

Li, Dong-Ping ^{[3
]}

Shi, Heng ^{[1
]}

Xing, Jieni ^{[1
]}

Shao, Junyan ^{[1
]}

Zhang, Rui ^{[1
]}

Liu, Jian ^{[1
]}

机构：

[1] Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Key Lab Biomass Based Green Fuels & Chem, Nanjing 210037, Jiangsu, Peoples R China

[2] Natl Inst Adv Ind Sci & Technol, Elect & Photon Res Inst, 1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan

[3] Nanchang Univ, Dept Chem, Nanchang 330031, Jiangxi, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2019年 / 7卷 / 24期

基金：

中国国家自然科学基金;

关键词：

STRUCTURE-PROPERTY RELATIONSHIPS; PORPHYRIN SENSITIZERS; CHARGE RECOMBINATION; HIGHLY EFFICIENT; COADSORBENT-FREE; CARBAZOLE DYES; ENERGY-LEVELS; TIO2; DONOR; UNIT;

D O I：

10.1039/c9tc01520e

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate that employing long alkyl chains perpendicular to the pi-conjugated plane of the backbone is a promising strategy to construct efficient organic sensitizers for dye-sensitized solar cells (DSSCs) with efficient photovoltaic performance. The perpendicular alkyl chains have been suggested as superior alternatives to parallel alkyl chains for preventing intermolecular interactions in D-pi-A dyes, and therefore co-adsorption with deoxycholic acid (DCA) can be avoided. DSSCs employing iodine/iodide electrolytes and an organic dye LJ-8 with long alkyl chains perpendicular to its pi-conjugated plane produced a high photovoltage of 0.801 V and a high conversion efficiency over 8%.

引用

页码：7249 / 7258

页数：10

共 71 条

[1] Engineering Organic Sensitizers for Iodine-Free Dye-Sensitized Solar Cells: Red-Shifted Current Response Concomitant with Attenuated Charge Recombination [J].