Journal
ACS PHOTONICS
Volume 4, Issue 11, Pages 2952-2958Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.7b01096
Keywords
ZnO:PEI composite interlayer; postannealing treatment; open-circuit voltage; enhanced electron extraction; declined charge loss
Categories
Funding
- National Natural Science Foundation of China [61370046, 11574110]
- Science and Technology Innovation Leading Talent and Team Project of Jilin Province [20170519010JH]
- International Cooperation and Exchange Project of Jilin Province [20170414002GH]
- Jilin University [2017175, 2017170]
Ask authors/readers for more resources
The polymer solar cells owning organic-inorganic composite cathode interlayer are fabricated to achieve well electron extraction compared to the devices with single inorganic semiconductor materials, leading to a significant enhancement of short-circuit current density (J(sc)) and fill factor (FF) as well as slight improvement of open circuit voltage (V-oc). The incorporation of PEI mainly contributes to the decreased work function of the ZnO layer and the reduced interfacial barrier, which are beneficial for the easy electrons extraction and the declined charge recombination. Strikingly, a postannealing treatment is employed for the completed device with electrode to improve the interfacial characteristics between the active layer and the MoO3 layer, which is a successful method to further increase the V-oc for the device based on PTB7:PC71BM. Our work provides a simple fabrication technology to improve the interfacial contact between active layer and adjacent interlayer, while possessing the major roles on the simultaneously enhanced J(sc), FF, and V-oc.
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