Pinholes are pitfalls for high performance solar cellsFri, 30 Jan 2015 08:15:33 EST
The most popular next-generation solar cells under development may have a problem – the top layer is full of tiny pinholes, researchers have found. Crystal light: New family of light-converting materials points to cheaper, more efficient solar power and LEDsThu, 29 Jan 2015 17:03:25 EST
Engineers have shone new light on an emerging family of solar-absorbing materials that could clear the way for cheaper and more efficient solar panels and LEDs. The materials, called perovskites, are particularly good at absorbing visible light, but had never been thoroughly studied in their purest form: as perfect single crystals. Using a new technique, researchers grew large, pure perovskite crystals and studied how electrons move through the material as light is converted to electricity. New technique for growing high-efficiency perovskite solar cellsThu, 29 Jan 2015 15:16:19 EST
Researchers have revealed a new solution-based hot-casting technique that allows growth of highly efficient and reproducible solar cells from large-area perovskite crystals. The researchers fabricated planar solar cells from pervoskite materials with large crystalline grains that had efficiencies approaching 18%. Solar chip monitors windowsThu, 29 Jan 2015 09:42:10 EST
A new kind of radio chip is intended to warn when windows are left open. This way, you can avoid having the heat go out the window on cold days. The sensor also detects break-in attempts early on. The key: This maintenance-free chip powers up with energy supplied by solar power. Demystifying nanocrystal solar cellsWed, 28 Jan 2015 12:54:16 EST
Researchers have developed a comprehensive model to explain how electrons flow inside new types of solar cells made of tiny crystals. The model allows for a better understanding of such cells and may help to increase their efficiency.