Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 4, Issue 10, Pages 5118-5124Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am301818z
Keywords
Ag layer; inverted polymer solar cell; particles; transmission electron microscopy; energy-dispersive X-ray spectroscopy; electron tomography
Funding
- Texas Emerging Technology Fund
- IT R&D program of MKE/KEIT [10030694]
- Center for Nanostructured Materials and Technology under Korea Ministry of Education, Science and Technology [2011K000201]
Ask authors/readers for more resources
It was found that the Ag electrode layer in a transmission electron microscopy (TEM) specimen of an inverted polymer solar cell structure of Ag/PEDOT:PSS/P3HT:PCBM/TiO2/ITO/glass (where PEDOT is poly(3,4-ethylenedioxythiophene), PSS is polystyrene sulfonate, and ITO is indium tin oxide) was broken down into particles as time passed. In order to investigate the cause of Ag particle formation and the effect of the degradation on the performance of solar cells, the temporal change of the cross-sectional TEM micrographs was examined together with energy-dispersive Xray spectroscopy (EDS) analysis and electron tomography. Temporal degradation of Ag/Si and Ag/1 nm-Ti/PEDOT:PSS/ITO/glass structures was also studied. Absorption of water by the PEDOT:PSS layer followed by coriosion of the grain boundaries of the Ag layer by the corrosive water was thought to be the reason of Ag particle formation and fast performance lowering of the device.
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