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- Gouillart, Louis, et al.
(författare)
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Ultrathin Cu(In,Ga)Se2 solar cells with Ag-based reflective back contacts
- 2020
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Ingår i: 2020 47th IEEE Photovoltaic Specialists Conference (PVSC). - 9781728161150 - 9781728161167 ; , s. 1481-1484
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Konferensbidrag (refereegranskat)abstract
- We developed a highly reflective back contact for Cu(In,Ga)Se 2 solar cells based on silver encapsulated in a TCOs stack, compatible with substrate configuration. We demonstrated ultrathin (500 nm) Cu(In,Ga)Se 2 solar cells with 13.5% efficiency and state-of-the-art JSC=28.9 mA/cm2,2.7 mA/cm 2 more than the reference cell on molybdenum. We also demonstrated a 530 nm-thick (Ag, Cu)(In,Ga)Se 2 solar cell on Mo with state-of-the-art efficiency (14.9%) and remarkably high V OC (741 mV) and FF (81.8%). This result coupled with a highly reflective back contact for improved J SC , has the potential for a 500 nm-thick (Ag, Cu)(In,Ga)Se 2 solar cell with an 18% efficiency.
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