Sol Voltaics to Present World-Record PV Conversion Efficiency Using Gallium Arsenide Nanowires

Dr. Ingvar Åberg, Sol Voltaics director of Cell Engineering and Applications, will present details on how the company doubled the previously reported world-record for photovoltaic (PV) conversion efficiency using a gallium-arsenide (GaAs) nanowire array (NWA) at the 42nd IEEE Photovoltaics Specialists Conference.

Sol Voltaics has doubled the previously reported world-record for photovoltaic (PV) conversion efficiency using a GaAs nanowire array. As independently verified by Fraunhofer-ISE, Sol Voltaics has demonstrated a 1-sun conversion efficiency of 15.3% in a GaAs NWA solar cell, representing a significant milestone towards providing the solar industry with an efficiency boosting tandem film. This is the highest efficiency reported to date in a III-V NWA solar cell, and twice the prior record for GaAs NWA technology. Control of the high density of surface states of native GaAs is essential for PV applications, and these results prove that the company has resolved this challenge in the growth of solar cell nanowires.

The presentation will be held on Wednesday, June 17, 2015, 2:30 p.m. CDT at Hyatt Regency, New Orleans.