Journal
SOLAR ENERGY
Volume 222, Issue -, Pages 18-26Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2021.05.011
Keywords
Polymer solar cells; Ternary; Morphology; Charge transport
Categories
Funding
- National Natural Science Foundation of China [61964010, 62064006]
- Natural Science Foundation of Gansu Province [20JR5RA402]
Ask authors/readers for more resources
The study utilized a ternary polymer donor and organic small molecule acceptor, introducing a third component PC71BM to enhance the morphology of the photoactive layer and improve device performance. The introduction of PC71BM not only improved morphology and promoted more efficient exciton transport, but also influenced molecular arrangement for better crystallization performance.
The third component played an increasingly significant role in polymer solar cells (PSCs), especially for the morphological impact. Here, we use a ternary polymer donor (TBFCl50-BDD) and organic small molecule acceptor (BTP-4F) as the main material and introduce a third component (PC71BM) to enhance the morphology of the photoactive layer and result in improved device performance. The TBFCl50-BDD:BTP-4F based PSCs only exhibited an efficiency of 10.58%, while The power conversion efficiency of ternary device (TBFCl50-BDD:BTP4F:PC71BM) reached 13.15%. Importantly, the introduction of PC71BM can not only improve the morphology of the active layer and promote more efficient exciton transport, but also influence the molecular arrangement for better crystallization performance. This work offers an effective method for optimization of the morphology to enhance the properties of PSCs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available