Rayleigh solar Tech has announced two significant lifetime stability results. First, a 15cm x 15cm glass solar module exhibited zero degradation after seven months of outdoor testing. Second, a 15cm x 15cm flexible solar module achieved T80 after 1200 hours of damp heat testing.
“Stability is the crux of any perovskite company’s business model” said Rayleigh CTO and Founder, Dr. Sam March. “This is a huge step towards the commercial viability of our perovskite PV. Rayleigh’s all-ambient slot-die coated carbon-based perovskite solar modules are efficient, low-cost, and are stable in the field”, he said.
Dr. March said that outdoor stability is a critical indicator that Rayleigh is producing a stable, low-cost perovskite solar product. The next step will be to conduct accelerated light induced degradation tests, which will further validate product lifetime.
The damp heat result is also a significant milestone in Rayleigh’s technology development. Rayleigh’s Product Development Lead, Raha Khosravi, explained that “the sample maintained over 80% of its efficiency while being constantly exposed to 85% humidity at 85 degrees Celsius for 1200 hours (50 days)”. Maintaining this level of efficiency in such extremely harsh environmental conditions are strong indicators of a solar panel that will last over 20 years".
