Monday, April 18, 2011

43.5 percent solar cell efficiency record with 20 w per chip


A new record for solar cells efficiency has been achieved by the Solar Junction and has been verified by the National Renewable Energy Laboratory's (NRELs) Measurement and Characterization Laboratory. Record of 43.5 percent solar cell efficiency thanks to multijunction cells made ​​of multiple layers of photovoltaic material.


Multijunction solar cells will optimize the conversion of different light spectrum into electrical energy. Multiple layers of photovoltaic layered onto a gallium arsenide substrate to improve the efficiency in converting light into electrical energy.


The use of mirrors to concentrate the sun's rays through the cells size of 5.5 mm square cells. At a concentration of 400 sun has reached values ​​up to 43.5 percent efficiency and maintain the level of up to 1,000 sun.


Multijunction solar cells with concentrated sunlight has long been used in a spacecraft or electricity needs in desert regions. While the company plans to expand production and delivery of commercial cells and hoping for loan guarantees from the Department of Energy.

3 comments:

  1. what are the costs? When do you expect production..
    Our location Bahamas small retaurant & 8 cottages and a home on bluff please advise lovieperkins@aol.com

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  2. Who? Solar Junction comes back to here. Whois the company developing these cells / chips?

    Loviep, if you really want to go with a solar system, look to China, they have pretty decient cells for the money. THis stuff here you are reading about will not happen for awhile if "the company" is hoping for loans / money from the Govment. Good luck

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  3. Once a higher efficiency is reached by some process, it will also show way to reduce the input costs in future. These will hit the market soon since solar energy is future for energy needs for human race.
    Kumar
    www.srisms.com

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