Effects of TiO x seeding layer upon the growth and light emission properties of ZnO nanowires

Abstract: Oriented ZnO nanowire (NW) arrays were fabricated via hydrothermal method using TiO x films as the seeding layer. Structural and morphological analysis indicates that the TiO x seeding layer can greatly improve the crystallinity and alignments of ZnO NWs. The photoluminescence (PL) spectra of ZnO NWs grown on the 1nm TiO x seed layer exhibit enhanced UV emission. Improved growth of ZnO NWs on TiO x seed layer may facilitate the fabrication of high performance dye sensitized solar cell devices. [Copyright &y& Elsevier]