Figure 5From: Patterned growth of carbon nanotubes over vertically aligned silicon nanowire bundles for achieving uniform field emissionMaterial characterization of CNT-SiNW heterojunction. (a) TEM images of single CNT-SiNW heterojunction and the electron diffraction patterns of CNT and SiNW, respectively, and (b) Raman spectra comparisons of SiNW and CNT-SiNW bundle array. The curve for CNT-SiNW bundle array is offset in the plot for clarification.Back to article page