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A four-directional non-fullerene acceptor based on tetraphenylethylene and diketopyrrolopyrrole functionalities for efficient photovoltaic devices with a high open-circuit voltage of 1.18 V.
- Source :
-
Chemical Communications . 7/14/2016, Vol. 52 Issue 55, p8522-8525. 4p. - Publication Year :
- 2016
-
Abstract
- Through the conjunction of tetraphenylethylene and diketopyrrolopyrrole functionalities, a novel four-directional non-fullerene electron acceptor (denoted as 4D) was designed, synthesized and characterized. The new chromophore is highly soluble (for instance >30 mg mL−1 in o-dichlorobenzene), thermally stable, and exhibits energy levels matching those of the conventional and routinely used donor polymer poly(3-hexyl thiophene). A power conversion efficiency of 3.86% was obtained in solution-processable bulk-heterojunction devices with a very high open circuit voltage of 1.18 V. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ELECTROPHILES
*TETRAPHENYLETHYLENE
*PYRROLES
*LEWIS acids
*CHROMOPHORES
Subjects
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 52
- Issue :
- 55
- Database :
- Academic Search Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 117472388
- Full Text :
- https://doi.org/10.1039/c6cc03730e