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Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors.
- Source :
- Angewandte Chemie International Edition; 3/4/2024, Vol. 63 Issue 10, p1-9, 9p
- Publication Year :
- 2024
-
Abstract
- In the development of high‐performance organic solar cells (OSCs), the self‐organization of organic semiconductors plays a crucial role. This study focuses on the precisely manipulation of molecular assemble via tuning alkyl side‐chain topology in a series of low‐cost nonfused‐ring electron acceptors (NFREAs). Among the three NFREAs investigated, DPA‐4, which possesses an asymmetric alkyl side‐chain length, exhibits a tight packing in the crystal and high crystallinity in the film, contributing to improved electron mobility and favorable film morphology for DPA‐4. As a result, the OSC device based on DPA‐4 achieves an excellent power conversion efficiency of 16.67 %, ranking among the highest efficiencies for NFREA‐based OSCs. [ABSTRACT FROM AUTHOR]
- Subjects :
- ELECTROPHILES
SOLAR cells
ORGANIC semiconductors
ELECTRON mobility
TOPOLOGY
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 63
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 175671282
- Full Text :
- https://doi.org/10.1002/anie.202318143