Journal
ACS NANO
Volume 6, Issue 1, Pages 810-818Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn204675r
Keywords
organic solar cell graphene; PEDOT:PSS; doping; conductance; field effect transistor
Categories
Funding
- Research Grants Council (RGC) of Hong Kong, China [PolyU5322/10E]
- Hong Kong Polytechnic University [J-BB9S, 1-ZV8N]
Ask authors/readers for more resources
A single-layer graphene film with high conductance and transparency was realized by effective chemical doping. The conductance of single-layer graphene was increased for more than 400% when it was doped with Au nanoparticles and poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid). Then semitransparent organic solar cells based on poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) were fabricated with single-layer graphene and indium tin oxide (ITO) as the top and bottom electrodes, respectively. The performance of the devices was optimized by tuning the active layer thickness and doping the single-layer graphene electrodes. The maximum efficiency of 2.7% was observed in the devices with the area of 20 mm(2) illuminated from graphene electrode under the AM1.5 solar simulator. It is notable that all of the devices showed higher efficiency from the graphene than ITO side, which was attributed to the better transmittance of the graphene electrodes. In addition, the influence of the active area of the organic solar cell on its photovoltaic performance was studied. We found that, when the active areas increased from 6 to 50 mm2, the power conversion efficiencies decreased from 3% to 2.3% because of the Increased series resistances and the decreased edge effect of the 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