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Solar cells sensitized by porphyrin dyes containing a substituted carbazole donor with synergistically extended absorption and suppressed the dye aggregation

文献类型： 外文期刊

作者： Tang, Yunyu 1 ; Liu, Xiujun 2 ; Wang, Yueqiang 2 ; Liu, Qingyun 3 ; Li, Xin 4 ; Li, Chengjie 2 ; Shen, Xiaosheng 1 ; Xie, 1 ;

作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Lab Qual Safety & Proc Aquat Prod, Shanghai 200090, Peoples R China

2.East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat & Inst Fine Chem, Shanghai 200237, Peoples R China

3.Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Peoples R China

4.KTH Royal Inst Technol, Sch Biotechnol, Div Theoret Chem & Biol, SE-10691 Stockholm, Sweden

关键词： Dye-sensitized solar cells; Porphyrin; Sensitizers; Carbazole; Bulky groups

期刊名称：CHINESE CHEMICAL LETTERS （ 影响因子：6.779； 五年影响因子：4.558 ）

ISSN： 1001-8417

年卷期： 2020 年 31 卷 7 期

页码：

收录情况： SCI

摘要： To achieve high power conversion efficiency (PCE), three porphyrin sensitizers have been synthesized and explored to simultaneously enhance the photocurrent (J(sc)) and photovoltage (V-oc). On basis of the XW4, a benzothiadiazole (BTD) unit has been introduced to afford XW57 with the aim to extend the absorption wavelength and enhance the light harvesting ability. As a result, a J(sc) of 13.72 mA/cm(2) has been obtained for XW57, higher than that of XW4. On this basis, XW58 has been prepared by modifying the carbazole-based donor with two bulky dihexyloxyphenyl groups, and the superior anti-aggregation character raises the V-oc from 781 mV (XW4) to 844 mV. When both the BTD unit and the bulky groups are introduced to the acceptor and donor units, respectively, the resulting sensitizer XW59 exhibits a highest PCE value of 7.34% with synergistically enhanced J(sc) of 13.19 mA/cm(2) and V-oc of 793 mV. These results provide further insight into developing high performance dye-sensitized solar cells (C) 2020 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

  • 相关文献

[1]Solar cells sensitized with porphyrin dyes with a carbazole donor: The effects of an auxiliary benzothiadiazole acceptor and bulky substituents on the donor. Tang, Yunyu,Cai, Youqiong,Wang, Yueqiang,Song, Heli,Xie, Yongshu,Wang, Yueqiang,Song, Heli,Xie, Yongshu,Liu, Qingyun,Li, Xin. 2019

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