Semi-transparent perovskite solar cells for tandems with silicon and CIGS

Semi-transparent perovskite solar cells for tandems with silicon and CIGS
 
Semi-transparent perovskite solar cells for tandems with silicon and CIGS
Colin D. Bailie,a   M. Greyson Christoforo,b   Jonathan P. Mailoa,c  Andrea R. Bowring,a   Eva L. Unger,a   William H. Nguyen,d  Julian Burschka,e   Norman Pellet,e   Jungwoo Z. Lee,c  Michael Grätzel,e   Rommel Noufi,f   Tonio Buonassisi,c  Alberto Salleoa and   Michael D. McGehee*a  
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Energy Environ. Sci., 2015,8, 956-963

DOI: 10.1039/C4EE03322A
Energy Environ. Sci., 2015, DOI: 10.1039/C4EE03322A
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A promising approach for upgrading the performance of an established low-bandgap solar technology without adding much cost is to deposit a high bandgap polycrystalline semiconductor on top to make a tandem solar cell. We use a transparent silver nanowire electrode on perovskite solar cells to achieve a semi-transparent device. We place the semi-transparent cell in a mechanically-stacked tandem configuration onto copper indium gallium diselenide (CIGS) and low-quality multicrystalline silicon (Si) to achieve solid-state polycrystalline tandem solar cells with a net improvement in efficiency over the bottom cell alone. This work paves the way for integrating perovskites into a low-cost and high-efficiency (>25%) tandem cell.

From: Energy Environ. Sci., 2015, DOI: 10.1039/C4EE03322A
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