Silver Trees extract solar energy Facts
Power industry for many years tried to transcend and overcome the laws of nature. However, when people come to understand that this leads to catastrophic climate change, efforts were under way for a return to natural laws, and wisdom. For example, to increase the efficiency of solar cells by scientists actively explored the mechanisms of converting light the trees. Ongoing studies are aimed at finding techniques to reduce the use of precious metal silver to make photovoltaic cells.
Each silicon solar panels for a contact grid, a special paste with a silver content of 0.10 grams per watt. Thus, a 200-watt panel is about 20 grams of the precious metal. Total production of solar cells consumes up to 11% of world production of silver, the value of which has increased from U.S. $ 20.24 per ounce in 2010 to U.S. $ 35.30 in mid-2011.
In this connection, a group of chemists from the University of California, Davis, led by Professor Frank Osterloh tried to find a way to reduce the consumption of silver in the batteries while maintaining the efficiency of the energy conversion process at the level of natural photosynthesis. Scientists have found that microscopic "fractal tree" silver width not more than one-fiftieth of a human hair can complete the task. In these "trees" are very large surface area, as in the ordinary trees, so that they can be very effective to absorb sunlight and convert it into electricity.
Most importantly, for the production of these battery cells require much less silver, which will expand the production of clean energy generators and to reduce their price, especially since the quality of the energy is not affected. Producers will only have to overcome the rising cost of silicon feedstock due to the increasing demand for environmentally friendly battery.
In the future, the researchers plan to continue research into the optimization of the production of photovoltaic cells, keeping installation costs and lowering cost, and most importantly, environmental safety. To work with fractal silver trees have already received a grant of 100,000 U.S. dollars.