Researchers achieve 24.92% efficiency in heterojunction solar cells with gallium-doped zinc oxide

A lab demonstration of indium-free transparent electrodes in silicon heterojunction cells reaches near-25% efficiency, suggesting a path to lower-cost high-efficiency solar manufacturing without rare-earth constraints.

First covered Oct 29, 2026 · 9:45 AM PT · 1 article · no longer in the live window

Researchers achieve 24.92% efficiency in heterojunction solar cells with gallium-doped zinc oxide — Image via pv-magazine.com

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12d PV Magazine Gallium-doped zinc oxide enables 24.92%-efficient HJT solar cell — Researchers have used room-temperature reactive plasma deposition to produce indium-free transparent electrodes for silicon heterojunction solar cells.

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Appeared in: 2026-10-29 (#12) · 2026-10-30 (#12)

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