Silicon heterojunction solar cell hits 23.5% efficiency with new hole-selective contact

Researchers from Switzerland's École Polytechnique Fédérale de Lausanne have used molybdenum oxide as the hole-selective contact in an heterojuction silicon cell. The scientists claim the compound can compete with traditional contacts despite a lower level of optimization.Scientists at Switzerland's École Polytechnique Fédérale de Lausanne (EPFL) claim to have reached 23.5% efficiency with a crystalline silicon heterojunction solar cell using molybdenum oxide as the hole-selective contact. The researchers said molybdenum oxide (MoOx) - which has been used as a carrier-selective layer and crystalline ...

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