Research Article
Photoabsorption Enhancement in Synthetic-Natural Dye-Sensitized Solar Cells Using Bilayer TiO2 Deposition and Separated Sensitization
Table 2
Calculated values for crystallinity state and nanocrystal size of layers.
| | Layer | (Å) | (degree) | FWHM | Crystallinity degree (%) | Estimated crystalline phase composition percentages (%) | D (nm) |
| | HT | 1.5406 | 25.19 | 0.393 | 64.21 | A: 68.34 R: 32.66 | 20.6 | | LT1 | 1.5406 | 25.29 | 0.295 | 47.19 | A: 54.82 R: 45.18 | 27.3 | | LT2 | 1.5406 | 25.29 | 0.344 | 55.43 | A: 61.21 R: 20.26 B: 18.53 | 22.8 | | LT3 | 1.5406 | 25.29 | 0.445 | 58.75 | A: 64.36 R: 17.75 B: 17.79 | 18.3 |
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A: anatase; R: rutile; B: brookite.
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