Figure 14From: Tuning of structural, optical, and magnetic properties of ultrathin and thin ZnO nanowire arrays for nano device applicationsMicro-Raman spectra of approximately 15-nm (ultrathin) ZnO nanowire array. (a) As-grown (300 K). (b) UHV-annealed at 473 K. (c) UHV-annealed at 673 K. (d) UHV-annealed at 873 K.Back to article page