Ultrathin silicon solar microcells for semitransparent, mechanically flexible and microconcentrator module designs

In a device design that brings mechanical flexibility to silicon photovoltaics, Jongseung Yoon, Alfred J. Baca and colleagues demonstrate how transfer-printing of ultrathin silicon films onto flexible substrates leads to semitransparent and large-scale arrays of integrated solar microcells with high solar-energy conversion efficiencies of 6–8%.