DNA-DODA with 7 to 11 wt% of either LiClO4 or LiI/I-2 ionic conducting membranes were synthesized, characterized, and applied in small TiO2-dye sensitized solar cells (DSSC). The best ionic conductivity values of 2.9 x 10(-4) and 2.3 x 10(-5) S/cm at 25 degrees C were obtained for samples with 10wt% of LiClO4 and LiI/I-2, respectively. The samples displayed Arrhenius behavior of ionic conductivity as a function of temperature and activation energies of 32.7 and 37.1 kJ/mol. TGA showed similar to 10% weight loss up to 120 degrees C and a start of degradation process at similar to 200 degrees C. The membranes with 10wt% of LiClO4 and 9 and 10wt% of LiI/I-2 applied in DSSCs revealed solar efficiencies of 0.21, 0.37, and 0.51, respectively.