Recycling Silicon Bottom Cells from End-of-Life Perovskite–Silicon Tandem Solar Cells

Yang, Guang; Wang, Mengru; Fei, Chengbin; Gu, Hangyu; Yu, Zhengshan J.; Alasfour, Abdulwahab; Holman, Zachary C.; Huang, Jinsong

doi:10.1021/acsenergylett.3c00123

Title: Recycling Silicon Bottom Cells from End-of-Life Perovskite–Silicon Tandem Solar Cells

Journal Article · 28 February 2023 · ACS Energy Letters

DOI: https://doi.org/10.1021/acsenergylett.3c00123 · OSTI ID:1958829

^[1];

^[2]; Fei, Chengbin ^[2]; Gu, Hangyu ^[2]; Yu, Zhengshan J. ^[3]; Alasfour, Abdulwahab ^[3]; Holman, Zachary C. ^[3];

^[2]

Univ. of North Carolina, Chapel Hill, NC (United States); UNC
Univ. of North Carolina, Chapel Hill, NC (United States)
Arizona State Univ., Tempe, AZ (United States)

Perovskite-silicon tandem cells have shown much higher efficiencies than the single junction cells, which promises further reduction of energy cost from photovoltaics. Due to the protection by perovskites, silicon subcells in perovskite-silicon tandem cells may last much longer than they are designed for single junction devices. Here we report recycling silicon bottom cells from end-of-life perovskite-silicon tandem solar cells which further reduce their cost and enhance the sustainability. We demonstrate that silicon bottom cells can be recycled from end-oflife tandem cells by thermal delamination and chemical cleaning processes. The optoelectronic properties of silicon bottom cells were shown largely unchanged at the end-of-life tandem cells. The tandem cells refurbished from recycled silicon bottom cells show comparable efficiencies with those fabricated from fresh ones.

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Research Organization:: Univ. of North Carolina, Chapel Hill, NC (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: EE0008749; EE0009520

OSTI ID:: 1958829

Alternate ID(s):: OSTI ID: 2337950

Journal Information:: ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 3 Vol. 8; ISSN 2380-8195

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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14 SOLAR ENERGY
Perovskites
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Silicon
Solar cells

Title: Recycling Silicon Bottom Cells from End-of-Life Perovskite–Silicon Tandem Solar Cells

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