Full-Solution Processed Flexible Organic Solar Cells Using Low-Cost Printable Copper Electrodes

A study reports the development of development of full-solution processed indium tin oxide (ITO)-free, flexible organic solar cells (OSCs) on the basis of printable Cu electrodes that are fabricated at mild temperature. The printed Cu electrodes are fabricated by polymer-assisted metal deposition (PAMD) in ambient conditions instead printing Cu-based nanomaterials and subsequently sintering into electrodes. These solution-processed Cu electrodes exhibit several indispensable advantages that meet the requirements to replace vacuum deposited bottom back electrodes of flexible OSCs.