Highly passivated p-type TOPCon bottom cells show significant potential for perovskite/silicon tandem solar cells

https://www.perovskite-info.com/highly-passivated-topcon-bottom-cells-show-significant-potential

"high open-circuit voltages, excellent efficiencies... on industrial textured wafers via industry-compatible ambient-pressure thermal oxidation in situ plasma-enhanced chemical vapor deposition... optimizing oxidation, boron in-diffusion, aluminum oxide hydrogenation, for passivation quality... 715 mV implied VOC(iVOC)... integrating bottom cells with perovskite top cells achieves  1,9 VOC, 28.2% PCE... tandem devices... future: commercialization"