Figure 6.

Optical bandgap of ZnO nanowire array. Plot of (−lnT × hν)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.

Tolosa et al. Nanoscale Research Letters 2013 8:135   doi:10.1186/1556-276X-8-135
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