world record solar cell with 44.7% efficiency
world record solar cell with 44.7% efficiency world record solar cell with 44.7% efficiency
sep 26, 2013

world record solar cell with 44.7% efficiency

world record solar cell with 44.7% efficiency

image © fraunhofer ISE




the fraunhofer institute for solar energy systems ISE, soitec, CEA-leti and the helmholtz center berlin have achieved a new world record for the conversion of sunlight into electricity using a new solar cell structure with four solar subcells. a new record efficiency of 44.7% was measured at a concentration of 297 suns, indicating that 44.7% of the solar spectrum’s energy – from ultraviolet through to the infrared – is converted into electrical energy. these solar cells are used in concentrator photovoltaics (CPV), a technology which achieves more than twice the efficiency of conventional PV power plants in sun-rich locations. several cells made out of different III-V multi-junction semiconductor materials are stacked on top of each other causing the single subcells to absorb different wavelength ranges of the solar spectrum.




external quantum efficiency of the four-junction solar cell
image © fraunhofer ISE




spectrum at a concentration of 297 suns
image © fraunhofer ISE

    have something to add? share your thoughts in our comments section below.
    all comments are reviewed for the purposes of moderation before publishing.

    comments policy
    LOG IN
    designboom's comment policy guidelines
    generally speaking, if we publish something, it's because we're genuinely interested in the subject. we hope you'll share this interest and if you know even more about it, please share! our goal in the discussion threads is to have good conversation and we prefer constructive opinions. we and our readers have fun with entertaining ones. designboom welcomes alerts about typos, incorrect names, and the like.
    the correction is at the discretion of the post editor and may not happen immediately.

    what if you disagree with what we or another commenter has to say?
    let's hear it! but please understand that offensive, inappropriate, or just plain annoying comments may be deleted or shortened.

    - please do not make racist, sexist, anti-semitic, homophobic or otherwise offensive comments.
    - please don't personally insult the writers or your fellow commenters.
    - please avoid using offensive words, replacing a few letters with asterisks is not a valid workaround.
    - please don't include your website or e-mail address in your comments for the purpose of self-promotion.
    - please respect jury verdicts and do not discuss offensively on the competition results
    (there is only one fist prize, and designboom usually asks renown professionals to help us to promote talent.
    in addition to the awarded designs, we do feel that almost all deserve our attention, that is why we publish
    the best 100-200 entries too.)

    a link is allowed in comments as long as they add value in the form of information, images, humor, etc. (links to the front page of your personal blog or website are not okay). unwelcome links (to commercial products or services of others, offensive material etc. ) will be redacted. and, ... yes, spam gets banned. no, we do not post fake comments.


    a diverse digital database that acts as a valuable guide in gaining insight and information about a product directly from the manufacturer, and serves as a rich reference point in developing a project or scheme.

    technology news

    keep up with our daily and weekly stories
    492,153 subscribers
    - see sample
    - see sample