Fig. 5From: Material science lesson from the biological photosystemAdapted with permission from ref [38] and [40]. Copyright 2013 and 2015, WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim, respectivelyElectron transfer pathway of artificial Z-schematic systems depending on the type of electron mediator. a Using redox ion pairs as a mediator. b Using electron conducting metals as a mediatorBack to article page