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Perylene Diimide‐Based Dimeric Electron Acceptors with Molecular Conformations for Perovskite Solar Cells.

Authors :
Saltan, Gözde Murat
Yeşil, Tamer
Ötken, Aysun Albayrak
Zafer, Ceylan
Dinçalp, Haluk
Source :
ChemPlusChem. Jul2024, Vol. 89 Issue 7, p1-16. 16p.
Publication Year :
2024

Abstract

This paper reports five novel PDI dimer type electron transport materials (ETMs) employing o‐indoloquinoxaline (o‐Iq), m‐indoloquinoxaline (m‐Iq), and cibalackrot (Ci) groups as the core building blocks and presents the twisted structures of PDI dimers coded as PDI‐NHR‐o‐Iq, PDI‐o‐Iq, PDI‐NHR‐m‐Iq, PDI‐m‐Iq and PDI‐NHR‐Ci dyes (see Scheme 1 and 2). We have systematically compared their photophysical, electrochemical, and optoelectronic properties with respect to the reference dye (2PDI‐NHR), which is directly connected of two PDI planes. Their calculated HOMO‐LUMO energy levels are sufficient for charge transfer to the perovskite material so that structure‐photovoltaic performance relationship of synthesized ETM dyes can be evaluated. When the binding position of indoloquinoxaline group between PDI rings are changed from o‐ to m‐ positions, most of the photophysical and electrochemical properties of PDI dimer are dramatically changed, finally improving the photovoltaic performances. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21926506
Volume :
89
Issue :
7
Database :
Academic Search Index
Journal :
ChemPlusChem
Publication Type :
Academic Journal
Accession number :
178442851
Full Text :
https://doi.org/10.1002/cplu.202400131