One-dimensional ferromagnetic dendritic iron wire array growth by facile electrochemical deposition

One-dimensional ferromagnetic iron dendritic wire array film is prepared by facile electrodeposition. The space hindrance effect caused by neighbouring crystals resists the free growth directions parallel to the substrate, which is considered as a possible growth mechanism of one-dimensional morphology. Dendritic iron wire can be transformed into alpha-Fe2O3 without destroying the dendritic morphology by thermal oxidation.