Figure 9.

Illustrations and FESEM images. Illustrations of (a) bare TiO2 nanotube arrays and (b) TiO2 micro-flowers for a DSC photoelectrode. FESEM images of (c) bare TiO2 nanotube arrays and (d) TiO2 micro-flowers.

Kim et al. Nanoscale Research Letters 2014 9:93   doi:10.1186/1556-276X-9-93
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