Enhanced optical properties and the origin of carriers transport in BiFeO${}_3$/TiO${}_2$ heterostructures with 109${}^{\circ }$ domain walls

Hong-Jian Feng, Bi Duan, Jinshou Tian +1

The absorption performance in the BiFeO${}_3$/TiO${}_2$ bilayer film prepared by simple sol-gel method has been significantly improved in the ultraviolet and visible-light region, comp…