%0 Journal Article %T Impact of Band‐gap Gradient in Semi‐Transparent and Bifacial Ultra‐Thin Cu(In,Ga)Se2 Solar Cells %A Rath, Christoph %A Gao, Yao %A Koehler, Tristan %A Schmid, Martina %J Advanced Materials Interfaces %V 11 %N 13 %D 2024-05-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve