Theoretical approach for Fe(II/III) and its chlorophyll-related complexes as sensitizers in dye-sensitized solar cells by Faiz, Mohamad Rodhi, Denny Widhiyanuriyawan, Denny Widhiyanuriyawan, Eko Siswanto, Eko Siswanto, Abdul Razak, Fazira Ilyana, I Nyoman Gede Wardana, I Nyoman Gede Wardana