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  4. Triarylamine-Functionalized Imidazolyl-Capped Bithiophene Hole Transporting Material for Cost-Effective Perovskite Solar Cells
 
research article

Triarylamine-Functionalized Imidazolyl-Capped Bithiophene Hole Transporting Material for Cost-Effective Perovskite Solar Cells

Joseph, Vellaichamy
•
Xia, Jianxing  
•
Sutanto, Albertus Adrian  
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May 18, 2022
ACS Applied Materials & Interfaces

Triarylamine end-capped-functionalized arylene-imidazole derivatives were synthesized from readily accessible, inexpensive precursors and employed as hole transporting materials (HTMs) in perovskite solar cells (PSCs). All the HTMs displayed high thermal decomposition temperatures (>410 degrees C), which is beneficial for realizing stable PSC devices. In addition, the new HTMs show appropriate energy level alignment with the perovskite layer, ensuring efficient hole transfer from perovskites to HTMs. Interestingly, PSCs fabricated with the triarylamine-functionalized imidazolyl-capped bithiophene molecule (DImBT-4D) as the HTM exhibited the best power conversion efficiency of 20.11%, comparable to that of the benchmark HTM spiro-OMeTAD, prompting it be a prospective candidate for large-scale PSC applications.

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Type
research article
DOI
10.1021/acsami.2c00841
Web of Science ID

WOS:000812784600001

Author(s)
Joseph, Vellaichamy
•
Xia, Jianxing  
•
Sutanto, Albertus Adrian  
•
Jankauskas, Vygintas
•
Momblona, Cristina  
•
Ding, Bin  
•
Rakstys, Kasparas
•
Balasaravanan, Rajendiran
•
Pan, Chun-Huang
•
Ni, Jen-Shyang
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Date Issued

2022-05-18

Publisher

AMER CHEMICAL SOC

Published in
ACS Applied Materials & Interfaces
Volume

14

Issue

19

Start page

22053

End page

22060

Subjects

Nanoscience & Nanotechnology

•

Materials Science, Multidisciplinary

•

Science & Technology - Other Topics

•

Materials Science

•

imidazoles

•

perovskite solar cells

•

stable devices

•

bithiophene

•

n-i-p configuration

•

low-cost hole transporting materials

•

dopant-free

•

highly efficient

•

high-performance

•

position

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LCOM  
Available on Infoscience
July 4, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/189007
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