Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 118, Issue 45, Pages 25863-25868Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp505735j
Keywords
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Funding
- Welch Foundation [C-1716]
- Lockheed Martin LANCER IV
- Sandia National Laboratory
- Air Force Office of Scientific Research MURI [FA9550-12-1-0035]
- Office of Naval Research MURI [00006766, N00014-09-1-1066]
- AZ Electronic Materials
- University of Akron
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Metal grids covered by graphene were used as transparent conductive electrodes in dye sensitized solar cells. The efficiency of dye sensitized solar cells with graphene-on-Pt grids was 0.4%. Compared to the control group, in which the platinum grids were used as a transparent conductive layer, the efficiency of dye sensitized solar cells with graphene was more than 2 times better. To our knowledge, it is the most efficient dye sensitized solar cell to use a graphene-based transparent conductive electrode without a conductive oxide support such as fluorine-doped tin oxide or indium-doped tin oxide. The dye sensitized solar cell prepared by 150 degrees C as the low temperature processes, which are essential for fabricating flexible dye sensitized solar cells, was fabricated using a hybrid graphene on Ni grids transparent conductive electrode, and it exhibited an efficiency of 0.25%. The mechanical properties of the flexible hybrid transparent electrode are better than the oxide-based transparent conductive electrode in both bending and stretching tests. Therefore, the long-term stability of the flexible dye sensitized solar cells could be enhanced by using this new transparent conductive layer.
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