Flexible Photovoltaic Devices: High‐Performance Flexible Nanostructured Silicon Solar Modules with Plasmonically Engineered Upconversion Medium (Adv. Energy Mater. 21/2015)

In article number 1500761, Jongseung Yoon and co-workers report a photovoltaic system that can improve the collection efficiency of above-bandgap, long-wavelength photons in ultrathin nanostructured silicon solar cells. A flexible composite solar module integrated with silver nanostructures and upconversion printing medium enables the enhanced photovoltaic performance of surface-embedded 8-μm-thick silicon microcells via synergistic contributions from plasmonically amplified spectral upconversion, waveguiding, and fluorescence of the upconversion medium.