01 / Demonstrated Performance
Superior Radiation Resilience
Higher efficiency retention demonstrated in electron and proton irradiation tests.
>9% improvement in efficiency retention at EOL vs CZ
EpiNex® for space
Engineered Silicon Wafers for Space Power Systems
Engineered silicon wafers for PERC and HJT solar cells, delivering improved end-of-life power output for satellites and thin, high-efficiency solutions for HAPS.
Radiation Resilience
Power That Lasts Longer.
EpiNex® engineered silicon improves radiation resilience, giving satellite designers greater flexibility to optimize solar array size, mass and end-of-life power.
02 / System Advantage
Smaller, Lighter Arrays
Maintain required end-of-life power with less array mass and potentially lower drag.
03 / Mission Value
Extended Power Availability
Maintain required solar power for longer with the same array size.
The Case for Silicon in Space
Space Power at Scale.
III-V Solar Cells: High Efficiency. High Cost. Limited Scale.
High conversion efficiency, limited manufacturing scale, and high costs constrain deployment at the scale needed for larger LEO constellations.
EpiNex®: High Performance. Scalable Production.
Engineered EpiNex® wafers enable radiation-resilient silicon solar cells using established, high-volume cell manufacturing technologies.
EpiNex® HJT cellBuilt on a commercial line
The EpiNex® process
A Smarter Way to Make Silicon Wafers.
Direct Gas-to-Wafer Technology
EpiNex® grows precision-engineered silicon wafers directly from gas, eliminating conventional ingot growth and wire sawing. Precise control of doping profiles during growth enables improved radiation resilience and solar cell performance while using silicon more efficiently.
50–150 µmControlled wafer thickness
Grown directto final thickness
Seed Preparation
A reusable silicon seed wafer is prepared with an engineered porous separation layer.
Epitaxial Growth
Silicon is grown directly to final thickness with precisely controlled doping profiles.
Wafer Detachment
The finished wafer is detached, and the seed is reclaimed for reuse.
Strategic Supply
Critical Silicon. Secure Supply.
Building a resilient Western wafer supply chain for next-generation solar power.
Critical Material
Silicon is designated a U.S. critical mineral.
Boron-Based Doping
No reliance on gallium as the wafer dopant.
Localized Manufacturing
Western production and supply chains without critical dependencies.
Engineering the Future of Space Power
The Next Generation of Space Power Starts with Silicon.
Explore how NexWafe is building the manufacturing capacity to bring engineered silicon wafers to scale.