In a seaweed-eating seaweed world, a single-celled photosynthesis organism sits on top of the ocean and can absorb the most sunlight. In the sub-layer, there are living budding algae that chase photons, and the key to their survival is to quickly capture light energy and turn it into food. Related papers were recently published in "Chemical." The discovery will help create a new generation of light capture system bionic design. Using ultra-short laser pulses, researchers at Princeton University in the United States found that the soaring light-capturing ability of algae was attributed to the transfer of energy from one light-absorbing molecule to another. In 1 nanosecond, energy can cross thousands of molecules, and energy exchange between molecules can cause molecular vibrations. This increase in vibration can trigger a chain reaction that allows the budding algae to absorb additional light energy faster.
“Even in sunny weather, the sunlight in the ocean is a weak source of photons, and it is not enough to form photochemical enzymatic reactions. Therefore, the algae must be spread widely to catch more photons faster.†Gregory Scholes said, “Because they absorb much less light than land plants, harvesting light quanta is even more important.â€
Current light-harvesting techniques also use similar strategies to increase the amount of light absorbed by inorganic molecules, but are far from reaching the ability of algae. It is instructive to develop an organic material that can absorb a large amount of photons in a small area. "Undoubtedly, the effects of molecular vibrations are not comparable to that of cryptophytes. Therefore, we must understand the mechanism of algae vibration. This will help us understand how this organism has evolved to optimal light absorption capacity," said Scholes. .
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