at Google ScholarTitle data
Wang, Zheng ; Yang, Jie ; Liu, Yanan ; Wang, Shifan ; Zhong, Yu ; Li, Cheng ; Zhang, Zhiguo ; Xing, Guichuan ; Hüttner, Sven ; Tao, Youtian ; Li, Yongfang ; Huang, Wei:
Cyclometalated Pt complex-based random terpolymers for efficient polymer solar cells.
In: Polymer Chemistry.
Vol. 8
(2017)
Issue 32
.
- pp. 4729-4737.
ISSN 1759-9954
DOI: https://doi.org/10.1039/C7PY00924K
Abstract in another language
Platinum complex was introduced in low ratios (0, 1, 1.5, and 5 mol) as the third monomer in the conjugated backbone of well-known donor polymer PTB7-Th using a random terpolymer molecular design approach. All polymers showed similar absorption behavior and comparable HOMO/LUMO energy levels due to the small amount of Pt complex used. When blended with PC71BM in polymer solar cells, the power conversion efficiency was enhanced to 8.45 (obtained by the device based on PTB7-ThPt1.5 containing 1.5 mol Pt) compared with 7.92 for the control PTB7-Th. Notably, the apparently low molecular weight of PTB7-ThPt1.5 (Mn/Mw: 46/70 kg mol-1) compared with that of PTB7-Th (Mn/Mw: 62/97 kg mol-1) ensured a more convincing comparison. Using a combination of physical measurements, such as optoelectrical characterization, grazing incident wide-angle X-ray diffraction (GIWAXS), and picosecond time-resolved photoluminescence, the efficiency enhancement was contributed by the higher hole mobility, less bimolecular recombination, and a more efficient slow charge separation process.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Junior Professor Solar Energy - Juniorprof. Dr. Sven Hüttner Profile Fields > Advanced Fields > Polymer and Colloid Science Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Solar Energy Profile Fields Profile Fields > Advanced Fields Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 530 Physics 500 Science > 540 Chemistry |
| Date Deposited: | 30 Aug 2017 06:03 |
| Last Modified: | 30 Aug 2017 06:03 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/39199 |