Chemical-photo-electricity diagrams by Ohm’s law – A case study of Ni-doped TiO2 solutions in dye-sensitized solar cells.

Highlights: [•] Jsc/Voc in terms of chemical doping and synthesis temperature was derived by Ohm’s law. [•] Novel chemical-photo-electricity diagrams were constructed based on the proposed model. [•] Both Jsc and Voc were enhanced in DSSC with a TiO2 (P-25)/Ni-doped TiO2 electrode. [ABSTRACT FROM AUTHOR]