Solar cell manufacturer Yingfa Ruineng has developed a perovskite/back-contact (BC) tandem module using BC cells from its subsidiary as the bottom cell.
Classified as large-format with dimensions of 2.384 m × 1.134 m, the module achieved a power output of 724 W and a conversion efficiency of 26.78%. According to the company, the perovskite top cell contributes more than half of the module’s power generation, while the BC bottom cell provides the remainder.
The module adopts a 4-terminal (4T) tandem architecture, with the perovskite top cell absorbing short-wave light in the 300-800 nm range and the BC bottom cell capturing long-wave red and near-infrared light in the 600-1,200 nm range.
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Posted: Jun 01,2026 by Roni Peleg
