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001     1043283
005     20250917202326.0
024 7 _ |a 10.1016/j.xcrp.2025.102658
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100 1 _ |a Eberst, Alexander
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245 _ _ |a Performance improvements through gradient layers in transparent passivating contact solar cells
260 _ _ |a Maryland Heights, MO
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|b Cell Press
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520 _ _ |a Transparent passivating contact solar cells using hydrogenated n-type nanocrystalline silicon carbide (nc-SiC:H(n)) utilize a double-layer stack consisting of one passivation-optimized and one conduction-optimized nc-SiC:H(n) layer. This double-layer configuration limits the fill factor (FF) due to the passivating layer’s low electrical conductivity. This study enhances this structure by introducing a gradient layer that transitions from passivating-like to conducting-like properties. While replacing the passivating layer alone does not improve performance, when combining it with an ultrathin passivating seed layer, the gradient layer effectively balances voltage and FF trade-offs. This results in higher device voltage and FF. Microstructural analysis shows hydrogen content near the crystalline Si interface similar to the double-layer approach but with increased electrical conductivity earlier in the layer stack. These improvements boost both FF and open-circuit voltage by 0.6% absolute and over 4 mV, respectively.
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700 1 _ |a Xu, Binbin
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700 1 _ |a Bittkau, Karsten
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700 1 _ |a Lambertz, Andreas
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700 1 _ |a Rau, Uwe
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700 1 _ |a Ding, Kaining
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773 _ _ |a 10.1016/j.xcrp.2025.102658
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856 4 _ |u https://www.cell.com/cell-reports-physical-science/fulltext/S2666-3864(25)00257-7
856 4 _ |u https://juser.fz-juelich.de/record/1043283/files/1-s2.0-S2666386425002577-main.pdf
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