A plastic that captures solar energy?


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A major technological advance
Researchers at the Ted Sargent team in Canada (MIT Laboratory Microphotonics and Nortel Networks) developed a plastic that combines quantum dots, which are tiny semiconductors, with a polymer. The nanoparticles obtained, which measure between 2 and 4 nanometers, are capable of capturing the wavelengths of the solar spectrum such as infrared.
Elles convertissent l’énergie lumineuse en électricité avec un rendement 5 fois plus élevé que les cellules photovoltaïques classiques. En effet, les panneaux solaires classiques n’exploitent que la moitié de l’énergie solaire reçue et ont un rendement limité à 6%. Le plastique solaire de l’équipe de Ted SARGENT est capable, du moins au laboratoire et selon le Professeur Peter PEUMANS de l’Université de Stanford, d’un rendement de 30%.

Which applications?

Among the possible applications it is possible to place the nanoparticles in paints or in clothes and form photosensitive films. These films could cover a wide range of surfaces such as walls or our jackets. They will then be able to charge phones, music players and this without any son.

The question is whether this technology will overcome the technical and financial obstacles to industrial scale production.

source: Notre-Planete.info

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