LONGi Hits 33.35% on Flexible Perovskite–Silicon Tandems — Why It Matters Now Headline news: LONGi has achieved 33.35% efficiency on a flexible perovskite–silicon tandem cell (≈1 cm²), certified by NREL . On an M6 wafer–sized flexible device, the company reports 29.8% efficienc... 33.35% efficiency C&I rooftop solar LONGI 28/11/2025
