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Efficient, inexpensive plastic solar cells coming soon

Physicists have discovered new properties in a material that could result in efficient and inexpensive plastic solar cells. The discovery reveals that excitons, or energy-carrying particles generated by photons, can travel on the order of a thousand times farther in organic semiconductors than scientists previously observed. This boosts scientists’ hopes that organic solar cells may […]

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Solar cells thinner than wavelengths of light hold huge power potential

Ultra-thin solar cells can absorb sunlight more efficiently than the thicker, more expensive-to-make silicon cells used today, because light behaves differently at scales around a nanometer (a billionth of a meter), say engineers. They calculate that an organic polymer thin film could absorb as much as 10 times more energy from sunlight than was thought […]

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Funneling solar energy: Antenna made of carbon nanotubes could make photovoltaic cells more efficient

Using carbon nanotubes (hollow tubes of carbon atoms), chemical engineers have found a way to concentrate solar energy 100 times more than a regular photovoltaic cell. Such nanotubes could form antennas that capture and focus light energy, potentially allowing much smaller and more powerful solar arrays. View full post on ScienceDaily: Solar Energy News

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Off-the-shelf dyes improve solar cells

Scientists report success in boosting the ability of zinc oxide solar cells to absorb visible light simply by applying a blended mixture of various off-the-shelf dyes commonly used in food and medical industries — in a soak-then-dry procedure not unlike that used to color a tee-shirt in a home washing machine. View full post on […]

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