High-Efficiency Silicon Heterojunction Solar Cells: Materials, Devices and Applications

Yuqiang Liu, Yajuan Li, Yiliang Wu, Guangtao Yang, Luana Mazzarella, Paul Procel-Moya, Adele C. Tamboli, Klaus Weber, Mathieu Boccard, Olindo Isabella, Xinbo Yang*, Baoquan Sun

*Corresponding author for this work

    Research output: Contribution to journalReview articlepeer-review

    165 Citations (Scopus)


    Photovoltaic (PV) technology offers an economic and sustainable solution to the challenge of increasing energy demand in times of global warming. The world PV market is currently dominated by the homo-junction crystalline silicon (c-Si) PV technology based on high temperature diffused p-n junctions, featuring a low power conversion efficiency (PCE). Recent years have seen the successful development of Si heterojunction technologies, boosting the PCE of c-Si solar cells over 26%. This article reviews the development status of high-efficiency c-Si heterojunction solar cells, from the materials to devices, mainly including hydrogenated amorphous silicon (a-Si:H) based silicon heterojunction technology, polycrystalline silicon (poly-Si) based carrier selective passivating contact technology, metal compounds and organic materials based dopant-free passivating contact technology. The application of silicon heterojunction solar cells for ultra-high efficiency perovskite/c-Si and III-V/c-Si tandem devices is also reviewed. In the last, the perspective, challenge and potential solutions of silicon heterojunction solar cells, as well as the tandem solar cells are discussed.

    Original languageEnglish
    Article number100579
    JournalMaterials Science and Engineering R: Reports
    Publication statusPublished - Oct 2020


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