Ion electrolyte and Solar cells
Increase or using ion electrolyte pigment sensitized solar cell conversion efficiency of 7.6%
Japan's Industrial Technology Research Institute developed using the ionic liquid electrolyte pigment Increase or sensitized solar cells achieved 7.6% of the battery cell conversion efficiency. Ionic liquid electrolyte in the use of the pigment Increase or solar cells in the sense of "best in the world" (Production Research Institute). The development of dye-sensitized solar cells with the original use of Ru (ruthenium) complexes compared to dye-sensitized solar cells and improve the durability and reduces material costs.
By using the newly developed "MK-2" of organic pigments to achieve a light absorbing material. Use of organic solvent electrolyte, "Xiang Dousu" pigment, it can achieve an 8% conversion efficiency, but there are titanium dioxide electrode from the pigment to the low efficiency of electron mobility, electron short life and other issues. To solve this problem, producing integrated research techniques used in molecular design, synthesis of MK-2 pigment.
Increase durability through the use of non-volatile ion electrolyte to achieve. Simulation of the removal of ultraviolet sunlight relatively stable condition, with good durability. The use of organic solvent electrolyte Ru complex dye-sensitized solar cells, endurance time of 100 hours or less, while the durable development of the solar cells for up to 2,000 hours or more. Used by the oligomers with the structure of the organic electrolyte gelling agent and the less volatile components of ionic liquids to improve the durability of the electrolyte, the battery unit can achieve 5.5% efficiency.
The research and development as a New Energy and Industrial Technology Development Organization (NEDO) of the Industrial Technology Research Grant project conducted in a part of.
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