The Solar Energy Research Institute of Singapore (SERIS) at the National University of Singapore (NUS) recorded cell efficiency of 21.5% for its low-cost screen-printed bifacial monoPoly silicon solar cell technology in pilot-scale production using commercially available large-area Cz-Si wafers. 

SERIS’ monoPoly cell technology, applicable on both p-type and ntype silicon wafers, features homogenous junctions and standard fire-thorough screenprinted metal contacts with grids on both sides, resulting in a high-efficiency bifacial solar cell. This passivated-contact cell uses an advanced tunnel oxide and doped silicon layers, enabling surface passivation in the non-contact cell regions along with very low-resistance and low recombination screen-printed contacts.

Source: SERIS, Dec 22

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