Swedish Start-Up Announces Nanowire Breakthrough For Solar Energy; Has Potential to Boost Module Performance By More Than 50 Percent

In a major breakthrough for solar energy, Swedish advanced materials start-up Sol Voltaics AB has confirmed the successful alignment and orientation of nanowires in a thin film. The achievement represents the most significant technology milestone in solar nanowire manufacturing to date, paving the way for photovoltaic (PV) module efficiencies of 27% or more—a 50% boost in energy conversion efficiencies for today's solar modules.


LUND, Sweden—April 21, 2016—In a major breakthrough for solar energy, Swedish advanced materials start-up Sol Voltaics AB has confirmed the successful alignment and orientation of nanowires in a thin film. The achievement represents the most significant technology milestone in solar nanowire manufacturing to date, paving the way for photovoltaic (PV) module efficiencies of 27% or more—a 50% boost in energy conversion efficiencies for todays solar modules.

While showing highly promising characteristics in solar energy generation, nanowires are notoriously difficult to align due to their high aspect ratios and material characteristics. By controlling nanowire orientation and alignment at centimeter scale on standard-sized wafers, Sol Voltaics has taken a major step toward the commercial production of solar films for tandem solar PV modules.

"Todays announcement marks a significant moment for both Sol Voltaics and the global solar energy industry," said Erik Smith, CEO of Sol Voltaics. "Gallium arsenide (GaAs) nanowires have recently come to the forefront as holding great promise for boosting solar module efficiencies well beyond current levels. By aligning nanowires within a membrane, weve taken our greatest stride yet toward manufacturing solar nanowire films at the commercial scale. This will enable solar panel manufacturers to greatly enhance the energy-generating capability of their products."

The latest milestone follows Sol Voltaics 2015 announcement that the Fraunhofer-ISE confirmed a world-record PV conversion efficiency of 15.3% for the companys epitaxially grown GaAs nanowire solar cells. The cells were recently retested by Fraunhofer and showed little or no degradation nearly 18 months after the initial tests, reaffirming the technologys performance reliability.

In addition to the nanowire alignment breakthrough, Sol Voltaics has progressed through several generations of development of its Aerotaxy® production technology. The patented process allows cost-effective III-V nanowire solar cell production via a continuous gas phase process.

"We have made several significant advancements over the past few quarters, and that momentum continues on several fronts," added Smith. "Realistically, we have a few remaining hurdles to get over in order to get into commercialization but were very confident we can deliver a truly transformative energy solution, the kind of solution called for by the Breakthrough Energy Coalition, COP 21 summit, and other global efforts to combat climate change and create a clean energy economy."


About Sol Voltaics
Sol Voltaics improves the efficiency of solar energy capture, generation and storage through the use of nanomaterials. A small but fast-growing company with a strong intellectual property portfolio, Sol Voltaics is developing a high-volume production platform for its patented Aerotaxy® nanowire thin-film process. The companys nanowire solar cell technology will dramatically improve the efficiency of conventional solar modules at competitive costs, contributing to a sustainable energy world. Sol Voltaics is based in Lund, Sweden. Learn more at http://www.solvoltaics.com

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