| 摘要 |
PROBLEM TO BE SOLVED: To obtain a formation method in which a conductive contact is enhanced by a simple process without a need of a high vacuum by a method wherein an organic solvent dispersion liquid by metal ultrafine particles is coated so as to be then fired, a lower-layer electrode layer is formed, a dispersion solution whose contained weight concentration of metal ultrafine particles is equal to, or more than, that of the layer is coated so as to be then fired and an upper-layer electrode layer is formed. SOLUTION: A transparent-conductive-film electrode 3 is formed on a light- transmitting substrate 4, the transparent-conductive-film electrode 3 is divided, an amorphous layer or a thin-film polycrystal layer is deposited as a photoelectric conversion semiconductor layer 2, and a single-layer structure or a multilayer structure such as a tandem structure or the like is formed. An obtained solar cell element is divided into individual cells, a solution in which metal ultrafine particles such as Ag or the like are dispersed into an organic solvent such as α-terpineol or the like is coated so as to be then fired, and a lower-layer electrode layer is formed. Then, an organic solvent dispersion solution whose weight concentration is equal to, or more than, that of the dispersion solution used to form the lower-layer electrode layer is coated so as to be then fired, and a thin-film rear metal electrode 1 is formed. |
