The resurgence of organic photovoltaics

Several advances were reported in the field of organic photovoltaics in the last 2 years. Development and application of nonfullerene acceptors, in particular, has injected new life into the field. Exploitation of such materials in ternary blends and tandem solar cell structures has, in fact, enabled to record high efficiencies >15%, thus paving the way towards commercialisation.