NOVELTY - Photoelectric conversion device comprises first substrate and second substrate, where the first substrate having inlet (110') from side of the first substrate opposite side facing the second substrate; a filling material located in the inlet to fill at least a portion of the inlet; and a cap (160) on the first substrate and covering the inlet, where the filling material isolates the cap from the space such that the space is double sealed from the side of the first substrate opposite the side facing the second substrate.    USE - As photoelectric conversion device (claimed) such as solar cell for converting light energy to electrical energy.    ADVANTAGE - The photoelectric conversion device effectively prevents electrolyte from leaking and has a high durability.    DETAILED DESCRIPTION - A photoelectric conversion device comprises a first substrate and second substrate spaced from the first substrate with a space between them, where the first substrate having an inlet (110') from a side of the first substrate opposite a side facing the second substrate, where the inlet extending through the first substrate to the space between the first and second substrates; a filling material located in the inlet to fill at least a portion of the inlet; and a cap (160) on the first substrate and covering the inlet, where the filling material isolates the cap from the space such that the space is double sealed from the side of the first substrate opposite the side facing the second substrate. The filling material is formed from photosensitive material. The filling material comprises resin-based material. The filling material further comprises inorganic filler having material selected from Al2O3, SiO2, and TiO2. The filling material comprises material selected from ethyl vinyl acetate, polyolefin, silicon, and ionomer.    DESCRIPTION OF DRAWING(S) - The figure shows cross-sectional view of sealing structure of electrolyte inlet.    Light receiving substrate (110)    Electrolyte inlet (110')    Counter substrate (120)    electrolyte layer (150)    Cap member (160)