Ascent Solar’s Thin-Film PV Panels Survive Atomic Oxygen Tests Unscathed
Event summary
- Ascent Solar’s thin-film space solar products showed zero power loss after atomic oxygen (AO) exposure tests simulating six months in Low-Earth Orbit (LEO).
- The company used 1 mil FEP film as the primary barrier and encapsulant, which demonstrated resilience against AO degradation.
- AO typically causes erosion, cracking, and oxidation in space solar arrays, leading to power loss over time.
- Ascent Solar plans further testing to simulate longer mission durations in AO-rich environments.
The big picture
Ascent Solar’s successful AO testing underscores the growing importance of material resilience in space solar arrays amid the rapid expansion of commercial space infrastructure. The company’s thin-film technology could gain a competitive edge as spacecraft operators seek durable, lightweight power solutions for LEO missions.
What we're watching
- Market Differentiation
- How Ascent Solar’s AO-resistant technology will position it against traditional silicon and gallium arsenide solar arrays in the commercial space market.
- Commercial Space Expansion
- The pace at which orbital infrastructure expansion will drive demand for resilient solar power solutions like Ascent’s thin-film panels.
- Long-Term Performance
- Whether Ascent Solar can sustain zero power loss results in extended AO exposure tests, validating its technology for longer missions.