Preparation method of photovoltaic cell electrode

The invention discloses a preparation method of a photovoltaic cell electrode. The preparation method comprises the following steps: (1) forming a pattern electrode on a substrate by using conductive slurry; and (2) electromagnetic wave radiation is adopted for electromagnetic heat treatment, so that the pattern electrode is dried, cured and sintered. The conductive slurry comprises a mixture formed by any one or more of metal, graphite and organic matter in any proportion; the content of metal and/or graphite and/or organic matters in the conductive paste is 0.05-95%; the viscosity of the conductive slurry is 5 to 600 Pa.S; before the step (2), the electrode pattern can be preprocessed. Rapid heat treatment of the electrode material is carried out through electromagnetic wave radiation, the method has the advantages that the heating efficiency is high, the curing and sintering speed is high, the drying, curing and sintering time is shortened to be within several seconds, the conductive material is prevented