Silicon- and Germanium-Functionalized Perylene Diimides: Synthesis, Optoelectronic Properties, and Their Application as Non-fullerene Acceptors in Organic Solar Cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F23%3A00575384" target="_blank" >RIV/61388963:_____/23:00575384 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/chem.202301337" target="_blank" >https://doi.org/10.1002/chem.202301337</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/chem.202301337" target="_blank" >10.1002/chem.202301337</a>
Alternative languages
Result language
angličtina
Original language name
Silicon- and Germanium-Functionalized Perylene Diimides: Synthesis, Optoelectronic Properties, and Their Application as Non-fullerene Acceptors in Organic Solar Cells
Original language description
Organic solar cells have been continuously studied and developed through the last decades. A major step in their development was the introduction of fused-ring non-fullerene electron acceptors. Yet, beside their high efficiency, they suffer from complex synthesis and stability issues. Perylene-based non-fullerene acceptors, in contrast, can be prepared in only a few steps and display good photochemical and thermal stability. Herein, we introduce four monomeric perylene diimide acceptors obtained in a three-step synthesis. In these molecules, the semimetals silicon and germanium were added in the bay position, on one or both sides of the molecules, resulting in asymmetric and symmetric compounds with a red-shifted absorption compared to unsubstituted perylene diimide. Introducing two germanium atoms improved the crystallinity and charge carrier mobility in the blend with the conjugated polymer PM6. In addition, charge carrier separation is significantly influenced by the high crystallinity of this blend, as shown by transient absorption spectroscopy. As a result, the solar cells reached a power conversion efficiency of 5.38 %, which is one of the highest efficiencies of monomeric perylene diimide-based solar cells recorded to date.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10401 - Organic chemistry
Result continuities
Project
<a href="/en/project/8J20AT020" target="_blank" >8J20AT020: Consecutive photoinduced electron transfer (conPeT) as a tool improving organic solar cells</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemistry - A European Journal
ISSN
0947-6539
e-ISSN
1521-3765
Volume of the periodical
29
Issue of the periodical within the volume
57
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
e202301337
UT code for WoS article
001095859300001
EID of the result in the Scopus database
2-s2.0-85169107251