U.S. Develops Plastic Solar Cells

According to the bimonthly report of the American "Futurist", researchers at the University of California, Berkeley, have developed flexible plastic solar cells. This kind of battery may power the electronic devices worn on the body or other low-energy devices in the future.
Paul Alivisatos, a professor of chemistry at the University of California in Berkeley, said: "At present, our light energy utilization rate is not high, only one-tenth. However, this technology has the potential to perform better. We improve the The prospect of technology is very bright.
According to reports, this new solar cell can be directly coated on plastic. The battery is very adaptable and can be attached to clothes to power the central processor of a light emitting diode, radio, or small computer.
"Futurist" said that the solar cells invented by Prof. Alivisatos and his research team consisted of tiny nanorods dispersed in organic polymers or plastics. A coating with a thickness of only 200 nanometers is sandwiched between the electrodes, and a voltage of about 0.7 volts can be generated. The electrode layer and the nanorod or polymer layer are in different coatings, which makes the production of the product quite easy. Plastic solar cells can be made in the beaker's solution and do not require a clean room or vacuum chamber.
Alivisatos and his colleagues hope to further significantly improve battery performance. The ideal situation is to compact the nanorods tightly together with a minimal amount of polymer. They also want to adjust the nanorods to absorb different colors of sunlight across the entire spectrum. The final solar cell may have three layers, each consisting of nanorods that absorb light waves of different wavelengths.

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