Has a two-terminal structure, and the multi-junction photovoltaic device layers later are stacked under the condition less constrained by the stacked layers above, integrated multi-junction photoelectric conversion apparatus, and a process for their preparation I it is an object. The stacked photoelectric conversion cells having different spectral sensitivities, at least the photoelectric conversion cell of the end opposite the side on which light is incident (2,4), the top layer of the side connected each conductive thin film layer (5a , has 5b, 5c, and 5d), a (16a, a 16b) conductive thin film layer, respectively, top and bottom layers of the side to be connected, the bottom layer between the top layer and the photoelectric conversion cells other (3) is conjugated through (6a, 6b) and anisotropic conductive adhesive layer containing the conductive particles in the transparent insulating material and. The conductive particles (6a, 6b) within the anisotropic conductive adhesive layer photoelectric conversion layer is the bonding material electrical connection in the stacking direction of the layers, (5a, 5b, 5c, 5d) conductive thin film layer (2 and electrically connecting the lateral direction of the 3, 4) (in-plane direction).
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