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. 2015 Apr 13;10(4):e0123433. doi: 10.1371/journal.pone.0123433

Fig 6. The photocurrent density–voltage characteristics of the ZnO nanostructures.

Fig 6

(a) Comparison of photocurrent density-voltage plot of the DSSCs based on ZnO nanorods, nanocons, and ZnO–ZnS nanocones (b) schematic diagram of the energy levels of the hetrostructure ZnO/ZnS photoelectrode in a DSSC.