Synthesis and characterization of organic-inorganic perovskite material for solar cell application

摘要

Organic-inorganic methylammonium lead iodide (CH3NH3PbI3) based perovskite was prepared on mesoporous TiO2/ZnO:Ga (GZO) coated glass substrate with two step spin coating technique. Ga doped ZnO (ZnO:Ga) thin films have been deposited by RF-Magnetron sputtering at room temperature on glass substrate and show 4.3x10(-4) Omega.cm electrical resistivity alongwith high optical transmittance (above 89%) and a haze factor of 52% respectively. Mesoporous TiO2 (mp-TiO2) paste is coated on GZO coated glass by doctor's blending method and heat treated TiO2 powder shows both (101) and (200) anatase phases. (101) and (200) crystalline phases are mainly responsible for higher absorption coefficient in mixed TiO2 powder. Methylammonium lead iodide (CH3NH3PbI3) (MAPbI(3)) perovskite/TiO2/ZnO:Ga tri-layer structure shows unique electrical and optical characteristics for organic-inorganic solar cell applications.