Figure 6From: Nucleant layer effect on nanocolumnar ZnO films grown by electrodepositionOptical bandgap of ZnO nanowire array. Plot of (−lnT × h ν)2 vs photon energy of ZnO nanowire array growth by galvanostatic and pulsed-current electrodeposition on ITO, sputtered ZnO, and spin-coated ZnO as substrate.Back to article page