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  4. High-Efficiency Perovskite Solar Cells Employing a S,N-Heteropentacene-based D-A Hole-Transport Material
 
research article

High-Efficiency Perovskite Solar Cells Employing a S,N-Heteropentacene-based D-A Hole-Transport Material

Bi, Dongqin  
•
Mishra, Amaresh
•
Gao, Peng
Show more
2016
ChemSusChem

We developed a new donor--acceptor-type hole-transport material (HTMs) incorporating S,N-heteropentacene as -spacer, triarylamine as donor, and dicyanovinylene as acceptor. In addition to appropriate frontier molecular orbital energies, the new HTM showed high photo absorptivity in the visible region. Without the use of p-dopants, solution-processed mixed perovskite devices using the HTM achieved power conversion efficiencies of up to 16.9% and high photocurrents of up to 22.2mAcm(-2). These results demonstrate that heteroacene can be an excellent building block to prepare alternative HTMs for perovskite solar cells and hold promise for further advancement through fine-tuning the molecular structure.

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Type
research article
DOI
10.1002/cssc.201501510
Web of Science ID

WOS:000372191600003

Author(s)
Bi, Dongqin  
Mishra, Amaresh
Gao, Peng
Franckevicius, Marius
Steck, Christopher
Zakeeruddin, Shaik Mohammed
Nazeeruddin, Mohammad Khaja
Baeuerle, Peter
Graetzel, Michael
Hagfeldt, Anders
Date Issued

2016

Publisher

Wiley-V C H Verlag Gmbh

Published in
ChemSusChem
Volume

9

Issue

5

Start page

433

End page

438

Subjects

heteroacene

•

hole-transport material

•

perovskite

•

solar cell

•

spectroscopy

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
GMF  
Available on Infoscience
July 16, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/127216
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