Ultrathin Layers of Densely Packed Prussian Blue Nanoclusters Prepared from a Ferricyanide Solution

Uniformly distributed Prussian blue nanoclusters with a thickness less than 50 nm were electrodeposited from an acidic solution containing only ferricyanide ions. The distinctive morphology of the deposited ultrathin layers of Prussian Blue ensures excellent performance in potassium ion-selective chemical sensors and in biosensors.