Abstract
We report a successful synthesis of ZnO/C60 core/shell-type organic–inorganic hybrid nanorod arrays (NRAs) using simple chemical route. X-ray diffraction pattern (XRD) reveals hexagonal crystal structure of ZnO along with the face-centered cubic (fcc) structure of C60. Detailed Fourier transform infrared spectroscopy (FTIR) inferred the attachment of C60 on the surface of ZnO NRAs. HRTEM observation confirmed ∼3nm thickness of a very thin C60 nanocrystals shell layer formation. HRSEM image shows the existence of C60 on vertically aligned ZnO NRAs. UV–visible absorption spectra have two absorption edges corresponding to the energy band gap values of 3.05 and 1.83eV which arise due to core ZnO and shell C60 respectively. Photoluminescence spectra reveal a strong enhancement in the NBE emission and suppression in the deep-level emission on the surface modified ZnO NRAs. The measured electrical resistivity under illumination for ZnO/C60 core/shell is lower than that of bare ZnO NRAs.
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