Abstract: An antioxidant conductive copper paste and a method for preparing the same are revealed. The antioxidant conductive copper paste includes conductive particles, a pasting agent, and a solvent. The conductive particles are copper nanoparticles or copper alloy nanoparticles. The pasting agent can be ethyl cellulose, Poly(3,4-ethylenedioxythiophene) (PEDOT), or epoxy. The solvent can be terpineol, ethylene glycol or diethylene glycol. The antioxidant conductive copper paste with features of high stability and low cost can be applied to produce electrodes of heterojunction solar cells.

Abstract: The present relates to antioxidant conductive copper ink and the method for preparing the same. The antioxidant conductive copper ink comprises nanometer copper or copper-alloy particles, which are used as the conductive particle material, water-free alcohol, which is used as the solvent, tert-butanol and ultra-pure water, which is used as the pasting agent, and carboxylic acid, which is used as the dispersant. Alternatively, isopropanol is used as the pasting agent and glycol is used as the solvent for injecting processes. The antioxidant conductive copper ink disclosed in the present invention owns the properties of high stability and low cost, and hence is applicable to the applications of fabricating the electrodes of silicon-crystal solar cells and printable electronic materials such as PCB or RFID.