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JinkoSolar unveils 28%-efficient back-contact TOPCon solar cell with amorphous silicon heterojunction passivation

JinkoSolar has unveiled its first back-contact solar cell technology, a new architecture called TAC that combines TOPCon with amorphous silicon heterojunction passivation. The Chinese manufacturer reported a peak cell conversion efficiency of 28%.

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Source published2026-10-19T07:54:59+00:00

Published here2026-10-19T08:47:47+00:00

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JinkoSolar unveils 28%-efficient back-contact TOPCon solar cell with amorphous silicon heterojunction passivation

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