Figure 6.

Energy diagram and dark current. (a) Energy diagram of Ag2S-sensitized ZnO/TNT solar cells and (b) the dark current of the Ag2S(4)/ZnO/TNT and Ag2S(4)/TNT electrodes.

Chen et al. Nanoscale Research Letters 2011 6:462   doi:10.1186/1556-276X-6-462
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