TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The photoelectric conversion component has electric power generation laminated material (22) with p-type-semiconductor layer, i-type semiconductor layer, n-type-semiconductor layer and passivation layer.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The thermal radiation structure contains aluminum hydroxide as flame-retardant thermally-conductive inorganic compound. The content of flame-retardant thermally-conductive inorganic compound is 400 parts mass or less with respect to 100 parts mass of polymer. The i-type semiconductor layer contains crystalline silicon, microcrystal amorphous silicon and/or amorphous silicon. The n-type-semiconductor layer contains n-type amorphous silicon including zinc oxide. The p-type-semiconductor layer contains amorphous silicon. Preferred Process: A layer containing nickel is formed in portion in which the p-type-semiconductor layer contacts electrode layer (e2). Preferred Property: The expanded graphite powder has primary average particle diameter of 5-500 mu m.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The polymer is (meth)acrylate polymer (A) having organic acid group formed by polymerizing (meth)acrylate monomer in presence of (meth)acrylate polymer (A1). The content of expanded graphite powder is 40-750 parts mass with respect to 100 parts mass of (meth)acrylate polymer (A1) formed by polymerizing (meth)acrylate monomers (in parts mass) (5-50) in presence of flame-retardant thermally-conductive inorganic compounds (400 or less), and organic-peroxide thermal-polymerization initiator (0.1-10). The polymer has units (a1) (80-99.9 %mass) of (meth)acrylate monomer in which the (meth)acrylate polymer (A1) forms homopolymer with glass transition temperature of -20 degrees C or less, and monomeric units (a2) (20-0.1 %mass) having organic acid group. Preferred Property: The weight average molecular weight of (meth)acrylate polymer (A1) is 100000-400000, measured by gel-permeation chromatography.