Similar or different: the same Spiro-core but different alkyl chains with apparently improved device performance of perovskite solar cells

被引：0
|
作者：
Fan Liu [1 ]
Shiqing Bi [2 ]
Xiaorui Wang [1 ]
Xuanye Leng [2 ]
Mengmeng Han [1 ]
Baoda Xue [2 ]
Qianqian Li [1 ]
Huiqiong Zhou [2 ]
Zhen Li [1 ,3 ]
机构：
[1] Department of Chemistry, Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Wuhan University
[2] CAS Key Laboratory of Nanosystem and Hierachical Fabrication, CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology
[3] Institute of Molecular Aggregation Science, Tianjin University
来源：
Science China(Chemistry) | 2019年 / 06期
基金：
中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;
关键词：
perovskite solar cells; alkyl chains; molecular packing;
D O I：
暂无
中图分类号：
O631.2 [高聚物的物理性质]; TM914.4 [太阳能电池];
学科分类号：
摘要：
By intelligently utilizing the odd-even effect existing in the melting points of alkanes as presented in the basic textbook of Organic Chemistry, different alkoxy groups were introduced to modify the structure of commercial Spiro-OMeTAD to give new Spiro derivatives of Spiro-OEtTAD, Spiro-OPrTAD, Spiro-OiPrTAD and Spiro-OBuTAD, with the aim to adjust the molecular packing status in perovskite solar cells as hole transporting compounds. Excitedly, with the introduction of ethoxy groups instead of the methoxy ones in Spiro-OMeTAD, Spiro-OEtTAD-based perovskite solar cells demonstrated the highest device performance of 20.16%, higher than that of Spiro-OMeTAD(18.64%).
引用
收藏
页码：739 / 745
页数：7
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