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  4. Heteroatom Engineering of a Dibenzo[g,p]Chrysene-Based Hole Transporting Material Provides High-Performance Perovskite Solar Cells
 
research article

Heteroatom Engineering of a Dibenzo[g,p]Chrysene-Based Hole Transporting Material Provides High-Performance Perovskite Solar Cells

Zhang, Xianfu
•
Zhang, Shaochen
•
Liao, Xiaobin
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February 21, 2024
Advanced Functional Materials

Hole-transporting materials (HTMs) are indispensable for realizing efficient and stable perovskite solar cells (PSCs). Herein, a novel dibenzo[g,p]chrysene-based HTM, termed FTPE-OSMe, is synthesized with peripheral methoxy- and methylthio-groups, which contrasts with most other small molecule HTMs that feature only methoxy-groups. The presence of methoxy- and methylthio-groups endows FTPE-OSMe with appropriate energy levels, high-hole mobility and enhanced interfacial interactions. PSCs employing Li-TFSI and 4-tert-butylpyridine-doped FTPE-OSMe demonstrate a remarkable power conversion efficiency (PCE) of 24.94% (certified 24.89%). The larger-scale PSC (1.0 cm2) and module (29.0 cm2) yield PCEs of 23.57 and 20.22%, respectively. In addition, the dopant-free FTPE-OSMe-based PSCs exhibit a respectable PCE of 22.40% and excellent stability.|A novel dibenzo[g,p]chrysene-based HTM is synthesized with peripheral methoxy- and methylthio-groups, which endow them with appropriate energy levels, high-hole mobility, and enhanced interfacial interactions. This results in a remarkable certified power conversion efficiency of 24.89% for n-i-p devices. The larger-scale PSC (1.0 cm2) and module (29.0 cm2) yield PCEs of 23.57 and 20.22%, respectively. image

  • Details
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Type
research article
DOI
10.1002/adfm.202314086
Web of Science ID

WOS:001166868900001

Author(s)
Zhang, Xianfu
Zhang, Shaochen
Liao, Xiaobin
Ding, Bin  
Rahim, Ghadari
Zhao, Kangning
Chen, Jianlin
Han, Mingyuan
Zhou, Ying
Shi, Pengju
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Date Issued

2024-02-21

Publisher

Wiley-V C H Verlag Gmbh

Published in
Advanced Functional Materials
Subjects

Physical Sciences

•

Technology

•

Dibenzo[G,P]Chrysene

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Heteroatom Engineering

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Hole Transporting Material

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Perovskite Solar Cell

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Perovskite Solar Module

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LCOM  
FunderGrant Number

National Key R&D Program of China

2020YFB1506400

VALAIS ENERGY DEMONSTRATORS FUND

Swiss National Science Foundation (SNF)

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Available on Infoscience
March 18, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/206472
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