ELECTRODE STRUCTURE, SOLAR CELL AND MANUFACTURING METHOD OF THE SAME

PROBLEM TO BE SOLVED: To provide an electrode structure excellent in adhesion to a transparent electrode layer and having less contact resistance; and provide a solar cell and the like equipped with the electrode structure.SOLUTION: An electrode structure 6 comprises: a first conductive layer 6a provided on a transparent electrode layer 5 in a patterned manner and having conductive particles and a high molecular compound; and a second conductive layer 6b provided on the first conductive layer 6a and having conductive particles but not having a high molecular compound serving as a binder. It is preferable that the second conductive layer 6b contains at least two types of conductive particle groups having particle-size distributions different from each other, and that a content rate of the conductive particle group is more than 99.0 mass%. When a hardening agent hardened at a temperature not less than 120°C and less than 180°C is used as the high molecular compound, the electrode structure can be used favorably as a collecting electrode of a solar cell having a chalcopyrite compound semiconductor layer.