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Perovskite solar cells based on hole-transporting conjugated polymers by direct arylation polycondensation

Published online by Cambridge University Press:  09 July 2018

Wei Li ,
Takehiko Mori  and
Tsuyoshi Michinobu Open the ORCID record for Tsuyoshi Michinobu [Opens in a new window]
Wei Li
Affiliation:
Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Takehiko Mori
Affiliation:
Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Tsuyoshi Michinobu*
Affiliation:
Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
*
Address all correspondence to Tsuyoshi Michinobu at [email protected]
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Abstract

Direct arylation polycondensation (DArP) is an emerging synthetic method of producing conjugated polymers in an environmentally benign and cost-effective manner. We now report the synthesis of hole-transporting conjugated polymers, namely, DPP-OMe (Mn = 7.9 kg/mol) and DPP-F (Mn = 12.6 kg/mol), under microwave-assisted DArP conditions. These two polymers and the previously synthesized 3,6-Cbz-EDOT were evaluated as hole-transporting materials in mesoscopic perovskite solar cells. 3,6-Cbz-EDOT synthesized by DArP exhibited higher hole mobility and better photovoltaic properties than that synthesized by the Stille polycondensation. Moreover, chemical dopants improved the short-circuit current density (Jsc) and fill factor.

Type
Research Letters
Information
MRS Communications , Volume 8 , Issue 3 , September 2018 , pp. 1244 - 1253
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Copyright
Copyright © Materials Research Society 2018 

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