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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
Shiqing Bi
Xiaorui Wang
Xuanye Leng
Mengmeng Han
Baoda Xue
Qianqian Li
Huiqiong Zhou
Zhen Li
机构:
[1] Wuhan University,Department of Chemistry, Hubei Key Lab on Organic and Polymeric Opto
[2] CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology,Electronic Materials
[3] Tianjin University,CAS Key Laboratory of Nanosystem and Hierachical Fabrication
来源:
关键词:
perovskite solar cells;
alkyl chains;
molecular packing;
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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%).
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页码:739 / 745
页数:6
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