As an innovator of new, next-generation solar energy technology, intellectual property is a fundamental part of our work at Sol Voltaics. Since our earliest days originating out of Lund University, Sol Voltaics has been granted 80 patents for technology and processes in our mission to deliver previously unattainable solar power efficiency at low cost.
The fabrication of nanowire solar cells utilizes three key intellectual property areas developed and owned by Sol Voltaics; nanowire devices, nanowire membrane formation and nanowire cell integration (SolFilm). The patent portfolio spans over the following areas: nanowire device design, nanowire device fabrication in MOCVD & Aerotaxy, nanowire alignment and membrane formation, and nanowire cell integration for both single junction and multi-junction transparent cells.
Aerotaxy is our unique, proprietary technology for fabricating nanowires and nanowire devices.
Aerotaxy dramatically reduces the amount of gallium arsenide and other expensive materials previously needed to create photonic nanowires. Providing exceptional throughput and high yield, Aerotaxy is what enables our SolFilm™ product to be produced and adopted at low cost.
Our patents cover our Aerotaxy process and all production tools.
Patents cover two key aspects; nanowire alignment and optimization. Our protected methods include high-level alignment and ordering of nanowires which ensure they become well defined structures.
Also protected are Sol Voltaics’ processes to optimize nanowires post-production that control the final layout of the nanowire membrane including ordering, spacing, alignment and orientation.
SolFilm™ Cell Integration
During cell integration, the array of individual nanowires is transformed into a solar cell. The nanowire array solar cell is able to convert the light from the sun into electricity with significantly less material use than conventional technologies.
The cell integration patents cover those aspects essential to making a high performing device from individual nanowires. It also includes how to accomplish this from various aspects of the process flow and contacting.