Flexible silver grid/PEDOT:PSS hybrid electrodes for large area inverted polymer solar cells

Large-area high-efficiency OSCs are prepared using Ag-grid based hybrid electrodes. Inverted OSCs with device area of 1.21 cm2 exhibit a record PCE of 5.85%. Investigation on device area scaling behavior reveals that device morphology and electrode sheet resistance are two most important factors limiting the PCE for large-area OSCs. Ag-grid electrodes with ultra-low resistance are thus uniquely advantageous in turning lab-scale breakthroughs into practical large-scale devices.190