Alta Devices dual junction solar cell verified at 30.8% conversion efficiency

  •   Alta Devices said that its new dual junction technology used a second junction with Indium Gallium Phosphide (InGaP) as the absorber layer on top of the base single junction cell.
    Alta Devices said that its new dual junction technology used a second junction with Indium Gallium Phosphide (InGaP) as the absorber layer on top of the base single junction cell.

The US National Renewable Energy Laboratory (NREL) has verified a new ‘dual junction’ thin film solar cell technology from Alta Devices with a conversion efficiency of 30.8%.

Chris Norris, president and CEO of Alta Devices said: “Alta Devices has been setting efficiency records since 2010. This new dual junction record at 30.8% is a testament to our technology and our world-class team.  It’s also an important step toward our target of 38% efficient cells.”

Alta Devices said that its new dual junction technology used a second junction with Indium Gallium Phosphide (InGaP) as the absorber layer on top of the base single junction cell. 

InGaP is known to use high-energy photons more efficiently than a single junction Gallium Arsenide (GaAs) cell.  Alta Devices said that it was currently shipping its single junction Gallium Arsenide (GaAs) technology.

Newsletter

Preview Latest
Subscribe
We won't share your details - promise!

Publications

  • Photovoltaics International 23rd Edition

    This issue of Photovoltaics International, our 23rd, offers key insights into some of the technologies that are ready to move from lab to fab in support of these goals. ISC Konstanz offer a glimpse of what the low-cost, high-efficiency solar cells of the future might look like. On page 35 the institute’s authors give an overview of what they call Konstanz’ “technology zoo”, encompassing their so-called BiSoN, PELICAN and ZEBRA cell concepts, all of which are aimed at increasing energy yield at the lowest possible cost.

  • Manufacturing The Solar Future: The 2013 Production Annual

    In the ever-changing global solar markets, cost reduction and measures to increase cell efficiencies are the key tools available to PV manufacturers to create new opportunities and drive your business to the next level. Manufacturing the Solar Future 2013 is the third in the Photovoltaics International PV Production Annual series, delivering the next instalment of in-depth technical manufacturing information on PV production processes designed to help you gain the competitive edge.

Partners

Acknowledgements

Solar Media