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Mar 6th, 2013
 
Alta devices achieves 30.8% efficiency record with new generation solar cell technology
 
Alta devices disclosed that it has reached 30.8% solar cell efficiency.
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  • Will Enable Significant Battery Life Extension in Mobile and Consumer Device

This new NREL (National Renewable Energy Laboratory) verified record has resulted from the company’s first implementation of a new generation “dual junction” solar cell technology which augments the company’s “single junction” technology.

Higher efficiency directly translates into more electricity generated from smaller surface areas. Therefore, applying Alta’s highly efficient, very thin and flexible mobile power technology to consumer devices can extend the battery life of everyday products such as smartphones, tablets, keyboards, mice, remote controls, and more.

Alta Devices pioneered the world’s highest efficiency single junction solar technology by using a number of breakthrough approaches to implementing Gallium Arsenide (GaAs) for solar cells. The company’s new dual junction technology builds on that basic GaAs approach, but implements a second junction (or layer) with Indium Gallium Phosphide (InGaP) as the absorber on top of the base cell. Because InGaP uses high-energy photons more efficiently, the new dual junction cell generates more electricity from the same amount of light than a single junction device. Alta Devices is currently shipping its single junction technology.


 
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