Journal
NANOSCALE
Volume 9, Issue 10, Pages 3524-3529Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nr00136c
Keywords
-
Categories
Funding
- National Key Basic Research and Development Program of China (973 program) - MOST [2014CB643504, 2015CB655001]
- Nature Science Foundation of China [51373165, 21625403, 51503198, 51403200]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB12010200]
Ask authors/readers for more resources
The graphene quantum dot (GQD) is a new kind of anode/cathode interlayer material for polymer solar cells (PSCs). The key requirement for a cathode interlayer (CIL) is a low work function. In this article, aiming at application as a CIL for PSCs, we report a general approach to tune the work function of GQD-modified electrodes using alkali metal cations, e.g. Li+, Na+, K+, Rb+ and Cs+. For ITO electrodes modified with these GQDs containing alkali metal cations, the work function can be finely tuned within the range of 4.0-4.5 eV. Owing to their low work function, GQDs containing K+, Rb+ and Cs+ can be used as CILs for PSCs. Their device performance is fairly comparable to that of the state-of-the-art CIL material ZnO. This work provides a rational approach to tune the properties of GQD and to design solution-processable electrode interlayer materials for organic electronic devices.
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