CaCu3Ti4O12 electrospun fibre: A new form of CaCu3Ti4O12 and its dielectric property

► A new form of CaCu3Ti4O12 (CCTO), CCTO fibre, is prepared by a facile process. ► The process includes electrospinning and subsequent calcination. ► The structure of fibres can be controlled by adjusting two parameters. ► The fibre with pure phase CCTO is prepared using the optimum parameters. ► CCTO fibres have different dielectric constant from CCTO bulk ceramics.