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Solar cells more efficient than photosynthesis | …

He set out to re-think solar energy conversion by asking the question: can we make materials for solar cells that more efficiently absorb the fluctuating amount of energy from the sun. Plants have evolved to do this, but current affordable solar cells - which are at best 20 percent efficient - do not control these sudden changes in solar power, Gabor said. That results in a lot of wasted energy and helps prevent wide-scale adoption of solar cells as an energy source.

Scientists have combined quantum structure and photosynthesis to build more powerful solar cells

The hypothesis set out by Gabor and his team is the first to connect quantum mechanical structure to the greenness of plants, and provides a clear set of tests for researchers aiming to verify natural regulation. Equally important, their design allows regulation without active input, a process made possible by the photocell's quantum mechanical structure.

Photosynthesis vs. solar cells - Biology - Science Forums

Researchers combine quantum physics and photosynthesis to make discovery that could lead to highly efficient, green solar cells

The hypothesis set out by Gabor and his team is the first to connect quantum mechanical structure to the greenness of plants, and provides a clear set of tests for researchers aiming to verify natural regulation. Equally important, their design allows regulation without active input, a process made possible by the photocell’s quantum mechanical structure.

When Gabor’s team applied these simple models to the measured solar spectrum on Earth’s surface, they discovered that the absorption of green light, the most radiant portion of the solar power spectrum per unit wavelength, provides no regulatory benefit and should therefore be avoided. They systematically optimized the photocell parameters to reduce solar energy fluctuations, and found that the absorption spectrum looks nearly identical to the absorption spectrum observed in photosynthetic green plants.

Learning From Photosynthesis For Efficient Solar Cells

Physics, photosynthesis and solar cells – …

Gabor, and several other UC Riverside physicists, addressed the problem by designing a new type of quantum heat engine photocell, which helps manipulate the flow of energy in solar cells. The design incorporates a heat engine photocell that absorbs photons from the sun and converts the photon energy into electricity.

When Gabor's team applied these simple models to the measured solar spectrum on Earth's surface, they discovered that the absorption of green light, the most radiant portion of the solar power spectrum per unit wavelength, provides no regulatory benefit and should therefore be avoided. They systematically optimized the photocell parameters to reduce solar energy fluctuations, and found that the absorption spectrum looks nearly identical to the absorption spectrum observed in photosynthetic green plants.

Physics, Photosynthesis And Solar Cells
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Components of Natural Photosynthetic Apparatus in Solar Cells.

For about 80 years, researchers have known that photochemical reactions inside an organism do not occur in the same place as where it absorbs sunlight. What has not been known, however, is how and along what routes the solar energy is transported into the photosynthetic organism – until now.

Artificial Photosynthesis In Solar Cells - Connect Green

RIVERSIDE, Calif. () -- A University of California, Riverside assistant professor has combined photosynthesis and physics to make a key discovery that could help make solar cells more efficient. The in the journal Nano Letters.

The Comparison of Photosynthesis and Solar Cells - …

“Not even the best solar cells that we as humans are capable of producing can be compared to what nature performs in the first stages of energy conversion. That is why new knowledge about photosynthesis will become useful for the development of future solar technologies”, says Donatas Zigmantas, Faculty of Science at Lund University, Sweden.

Physics, photosynthesis and solar cells - innovations …

Together with his colleagues Jakub Dostál, Lund University, and Jakub Pšenčík, Charles University in Prague, Donatas Zigmantas has studied the photosynthesis of bacterial cells. Using ultrafast spectroscopy – a measurement method that uses light to study molecules etc. – they were able to locate the routes along which solar energy is transported. The routes run both within and between the components of a photosynthetic cell. According to the researchers, their discovery demonstrates how the biological machinery is connected.

Quantum physics and photosynthesis make solar cells …

The research results show that the transport of solar energy is much more efficient within, than between, different cell components. It limits the transfer of energy between the components and thereby also the efficiency of the entire photosynthetic energy conversion process.

Photosynthesis And Solar Energy | Green Energy Sources

“However, in the longer term, our results might well provide the basis for the development and manufacturing of systems on a molecular level that collect, store and transport sunlight to the solar cells”, says Donatas Zigmantas.

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