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  4. Passivating Defects of Perovskite Solar Cells with Functional Donor-Acceptor-Donor Type Hole Transporting Materials
 
research article

Passivating Defects of Perovskite Solar Cells with Functional Donor-Acceptor-Donor Type Hole Transporting Materials

Daskeviciute-Geguziene, Sarune
•
Zhang, Yi  
•
Rakstys, Kasparas  
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2023
Advanced Functional Materials

In this study, a series of donor-acceptor-donor (D-A-D) type small molecules based on the fluorene and diphenylethenyl enamine units, which are distinguished by different acceptors, as holetransporting materials (HTMs) for perovskite solar cells is presented. The incorporation of the malononitrile acceptor units is found to be beneficial for not only carrier transportation but also defects passivation via Pb-N interactions. The highest power conversion efficiency of over 22% is achieved on cells based on V1359, which is higher than that of spiro-OMeTAD under identical conditions. This st shows that HTMs prepared via simplified synthetic routes are not only a low-cost alternative to spiro-OMeTAD but also outperform in efficiency and stability state-of-art materials obtained via expensive cross-coupling methods.

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Type
research article
DOI
10.1002/adfm.202208317
Web of Science ID

WOS:000865553600001

Author(s)
Daskeviciute-Geguziene, Sarune
•
Zhang, Yi  
•
Rakstys, Kasparas  
•
Xiao, Chuanxiao
•
Xia, Jianxing  
•
Qiu, Zhiheng
•
Daskeviciene, Maryte
•
Paskevicius, Tomas
•
Jankauskas, Vygintas
•
Asiri, Abdullah M.
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Date Issued

2023

Publisher

WILEY-V C H VERLAG GMBH

Published in
Advanced Functional Materials
Volume

33

Issue

1

Article Number

2208317

Subjects

Chemistry, Multidisciplinary

•

Chemistry, Physical

•

Nanoscience & Nanotechnology

•

Materials Science, Multidisciplinary

•

Physics, Applied

•

Physics, Condensed Matter

•

Chemistry

•

Science & Technology - Other Topics

•

Materials Science

•

Physics

•

defects passivation

•

donor-acceptor-donor

•

fluorene

•

malononitrile

•

perovskite solar cells

•

low-cost

•

high-performance

•

challenges

•

efficiency

•

enamines

Editorial or Peer reviewed

REVIEWED

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EPFL

EPFL units
GMF  
Available on Infoscience
October 24, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/191620
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