Can be printed solar cell technology
Currently, large-scale use of solar cells the greatest difficulty encountered is the high cost of silicon solar cell manufacturing process complicated. It requires a high degree of vacuum in the production environment to avoid dust and micro particles in the air have a negative impact on the product.
But in recent years, scientists have invented a solar cell technology is increasing people's attention, this technique is the use of nano technology, solar photovoltaic conversion circuit printed on film materials can be curled.
This new technology not only greatly increased the production rate of solar cells, and the printed circuit line width of only one hundred thousandth the diameter of the hair, therefore, can be made of solar cells to collect more solar energy into electricity. In other words, nano solar cell power generation capacity than conventional silicon solar cells stronger. Moreover, this new type of nano-solar cells can be curly, than conventional silicon cells are lighter and more flexible, more convenient to carry, of course.
For example, the California company called "nano solar" the company developed a copper indium gallium diselenide cells, the use of low-cost substrate, the substrate processing does not require vacuum deposition. At the same time, using a nano-structure of "ink" printed directly on the substrate of semiconductor solar panels. This produced a low-cost solar cells, manufacturing is easy, light weight and easy to bend and so on.
At present, nano solar company has raised to 500 million in venture funding to build the world's largest solar cell MILL. The plant is expected to put into operation, the production of solar cells a year up to 430 megawatts, a figure that current U.S. solar generation capacity by 2 times.
U.S. Kena Ka organic solar materials research and development, or spray can also be printed in a variety of flexible substrate, and the entire production cost is very low. With traditional silicon solar material as a substrate compared to organic solar materials that are light weight, good flexibility, wider use of other features.
Therefore, the experts pointed out that the most promising future solar installations, conductive plastics and nano-materials, product mix, these two materials can be mixed solution method similar to ink-jet printing to produce solar cells.
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