Electron-deficient N-alkyloyl derivatives of thieno[3,4-c]pyrrole-4,6-dione yield efficient polymer solar cells with open-circuit voltages > 1 v
Type
ArticleAuthors
Warnan, JulienCabanetos, Clement
Bude, Romain
El Labban, Abdulrahman

Li, Liang
Beaujuge, Pierre

KAUST Department
Advanced Nanofabrication, Imaging and Characterization Core LabBiological and Environmental Sciences and Engineering (BESE) Division
Chemical Science Program
Core Labs
Imaging and Characterization Core Lab
KAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2014-04-21Online Publication Date
2014-04-21Print Publication Date
2014-05-13Permanent link to this record
http://hdl.handle.net/10754/563544
Metadata
Show full item recordAbstract
Poly(benzo[1,2-b:4,5-b′]dithiophene-thieno[3,4-c]pyrrole-4,6-dione) (PBDTTPD) polymer donors yield some of the highest open-circuit voltages (V OC, ca. 0.9 V) and fill factors (FF, ca. 70%) in conventional bulk-heterojunction (BHJ) solar cells with PCBM acceptors. Recent work has shown that the incorporation of ring substituents into the side chains of the BDT motifs in PBDTTPD can induce subtle variations in material properties, resulting in an increase of the BHJ device VOC to ∼1 V. In this contribution, we report on the synthesis of N-alkyloyl-substituted TPD motifs (TPD(CO)) and show that the electron-deficient motifs can further lower both the polymer LUMO and HOMO levels, yielding device VOC > 1 V (up to ca. 1.1 V) in BHJ solar cells with PCBM. Despite the high VOC achieved (i.e., low polymer HOMO), BHJ devices cast from TPD(CO)-based polymer donors can reach power conversion efficiencies (PCEs) of up to 6.7%, making these promising systems for use in the high-band-gap cell of tandem solar cells. © 2014 American Chemical Society.Citation
Warnan, J., Cabanetos, C., Bude, R., El Labban, A., Li, L., & Beaujuge, P. M. (2014). Electron-Deficient N-Alkyloyl Derivatives of Thieno[3,4-c]pyrrole-4,6-dione Yield Efficient Polymer Solar Cells with Open-Circuit Voltages > 1 V. Chemistry of Materials, 26(9), 2829–2835. doi:10.1021/cm5002303Sponsors
The authors acknowledge financial support under Baseline Research Funding from King Abdullah University of Science and Technology (KAUST). The authors thank KAUST Analytical Core Laboratories for mass spectrometry, SEC measurements, and elemental analyses, and Sandra Seywald (MPIP - Mainz, Germany) for additional SEC measurements. The authors thank the Advanced Imaging and Characterization Laboratories at KAUST for technical support. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource user facility, operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.Publisher
American Chemical Society (ACS)Journal
Chemistry of MaterialsRelations
Is Supplemented By:- [Dataset]
Warnan, J., Cabanetos, C., Bude, R., El Labban, A., Li, L., & Beaujuge, P. M. (2014). CCDC 1029500: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13k8pm. DOI: 10.5517/cc13k8pm HANDLE: 10754/624376
ae974a485f413a2113503eed53cd6c53
10.1021/cm5002303