Self-Organized One-Dimensional Nanotube/Nanowire Array Films for Use in Excitonic Solar Cells: A Review
Figure 15
(a) Extinction coefficient of DCM-pyran donor and SQ-1 acceptor molecules dissolved in ethanol/acetonitrile-solvent mixture and the emission spectra of the same DCM-pyran solution. The DCM-pyran extinction coefficient is multiplied by 3 for display purposes. (b) Cross-sectional FE-SEM image showing DCM-Spiro-OMeTAD (denoted SOM) infiltration within SQ-1 dye-sensitized TiO2 nanotube array (NTA, nanotube pore size ~20 to 28 nm, length ≈500 to 600 nm). FTO denotes the fluorine-doped tin oxide layer upon the glass substrate. Reprinted with permission from [12].
