Novel Push-Pull Benzodithiophene-Containing Polymers as Hole-Transport Materials for Efficient Perovskite Solar Cells

Donor-acceptor conjugated polymers are considered advanced semiconductor materials for the development of thin-film electronics. One of the most attractive families of polymeric semiconductors in terms of photovoltaic applications are benzodithiophene-based polymers owing to their highly tunable ele...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-11, Vol.27 (23), p.8333
Main Authors: Mikheeva, Aleksandra N, Kuznetsov, Ilya E, Tepliakova, Marina M, Elakshar, Aly, Gapanovich, Mikhail V, Gladush, Yuri G, Perepelitsina, Evgenia O, Sideltsev, Maxim E, Akhkiamova, Azaliia F, Piryazev, Alexey A, Nasibulin, Albert G, Akkuratov, Alexander V
Format: Article
Language:English
Subjects:
benzodithiophene
Calcium Compounds
Communication
conjugated polymers
Electronics industry
Energy
Energy conversion efficiency
Fabrication
film-forming ability
hole-transport materials
Investigations
Lithium
Morphology
Oxides
Perovskite
perovskite solar cells
Perovskites
Photovoltaics
Physicochemical properties
Polymers
Semiconductor materials
Semiconductors
Solar batteries
Solar cells
Solar energy industry
Spectrum analysis
Temperature
Thin films
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Summary:Donor-acceptor conjugated polymers are considered advanced semiconductor materials for the development of thin-film electronics. One of the most attractive families of polymeric semiconductors in terms of photovoltaic applications are benzodithiophene-based polymers owing to their highly tunable electronic and physicochemical properties, and readily scalable production. In this work, we report the synthesis of three novel push-pull benzodithiophene-based polymers with different side chains and their investigation as hole transport materials (HTM) in perovskite solar cells (PSCs). It is shown that polymer that contains triisopropylsilyl side groups exhibits better film-forming ability that, along with high hole mobilities, results in increased characteristics of PSCs. Encouraging a power conversion efficiency (PCE) of 17.4% was achieved for -based PSCs that outperformed the efficiency of devices based on , , and benchmark PTAA polymer. These findings feature the great potential of benzodithiophene-based conjugated polymers as dopant-free HTMs for the fabrication of efficient perovskite solar cells.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27238333