Scientists unlock a 100-year-old quantum secret to supercharge solar power

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Scientists unlock a 100-year-old quantum secret to supercharge solar power


Scientists at the University of Cambridge have uncovered a surprising quantum effect inside an organic material, something once thought impossible outside metals. The team found that a special molecule can turn light into electricity with incredible efficiency, using a hidden quantum behavior unseen in such materials before. This breakthrough could lead to simpler, lighter, and cheaper solar panels.

Researchers discovered a new way organic molecules can mimic the quantum mechanics of inorganic materials, turning light into electricity with extraordinary efficiency. This finding could revolutionize solar power by allowing single-material, ultra-light panels. 
In a breakthrough that connects modern science with ideas first explored a century ago, researchers have witnessed a surprising phenomenon once thought possible only in inorganic metal oxides appearing inside a glowing organic semiconductor molecule. Led by scientists at the University of Cambridge, the discovery reveals a new and efficient way to capture light and convert it into electricity. This finding could reshape the future of solar technology and electronics, paving the way for lightweight, affordable solar panels built from a single material.

The study centers on a spin-radical organic semiconductor known as P3TTM. At the core of each molecule lies one unpaired electron, which gives it distinctive magnetic and electronic behavior. The work is the result of collaboration between Professor Hugo Bronstein's synthetic chemistry group in the Yusuf Hamied Department of Chemistry and Professor Sir Richard Friend's semiconductor physics team in the Department of Physics. These researchers previously designed this family of molecules for their bright luminescence, useful in organic LEDs, but the new paper in Nature Materials reveals something unexpected: when the molecules are packed closely together, their unpaired electrons interact much like those in a Mott-Hubbard insulator.

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