Back to Search
Start Over
Random terpolymer based on thiophene-thiazolothiazole unit enabling efficient non-fullerene organic solar cells
- Source :
- Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020), Nature Communications
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- Developing a high-performance donor polymer is critical for achieving efficient non-fullerene organic solar cells (OSCs). Currently, most high-efficiency OSCs are based on a donor polymer named PM6, unfortunately, whose performance is highly sensitive to its molecular weight and thus has significant batch-to-batch variations. Here we report a donor polymer (named PM1) based on a random ternary polymerization strategy that enables highly efficient non-fullerene OSCs with efficiencies reaching 17.6%. Importantly, the PM1 polymer exhibits excellent batch-to-batch reproducibility. By including 20% of a weak electron-withdrawing thiophene-thiazolothiazole (TTz) into the PM6 polymer backbone, the resulting polymer (PM1) can maintain the positive effects (such as downshifted energy level and reduced miscibility) while minimize the negative ones (including reduced temperature-dependent aggregation property). With higher performance and greater synthesis reproducibility, the PM1 polymer has the promise to become the work-horse material for the non-fullerene OSC community.<br />The batch reproducibility of polymer donor materials limits the performance of polymer solar cells. Here Wu et al. develop a polymer donor PM1 by random terpolymerization strategy with a high efficiency of 17.6% in the device and excellent batch-to-batch reproducibility.
- Subjects :
- Solar cells
Materials science
Organic solar cell
Science
General Physics and Astronomy
02 engineering and technology
010402 general chemistry
01 natural sciences
Miscibility
Article
General Biochemistry, Genetics and Molecular Biology
Polymer solar cell
chemistry.chemical_compound
Copolymer
Thiophene
lcsh:Science
chemistry.chemical_classification
Multidisciplinary
General Chemistry
Polymer
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Chemical engineering
Polymerization
lcsh:Q
0210 nano-technology
Ternary operation
Subjects
Details
- ISSN :
- 20411723
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....44cc338c377b1bcca28567631792230e