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Beilstein J. Nanotechnol. 2017, 8, 287–295, doi:10.3762/bjnano.8.31
Figure 1: (a) Principle of operation and (b) energy level diagram of a typical DSSC.
Figure 2: Photograph of mallow and henna powders.
Figure 3: (a) FTIR spectrum of mallow. (b) Scopoletin molecule.
Figure 4: (a) FTIR spectrum of henna. (b) Lawsone molecule.
Figure 5: UV–vis measurements of henna and mallow dye solutions.
Figure 6: SEM images of ZnO NRs (a) before immersion in dye, (b) cross-section view of ZnO NRs, (c) after imm...
Figure 7: SEM images of ZnO NWs (a) cross-section view of ZnO NWs (b) before immersion in dye and (c) after i...
Figure 8: (a) SEM images of ZnO NWs after the deposition of the TiO2 layer by sputtering. (b) Energy level di...
Figure 9: The ZnO NR absorbance measurements, as deposited in forming gas and in nitrogen for 45 minutes and ...
Figure 10: The ZnO NR absorbance measurements before and after immersion in dye for 23 h, in the first concent...
Figure 11: Current–voltage measurements (a) assembled cells with ZnO NWs as a layer in the photoanode side wit...