TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: Solar cell module has emission light from light guide which has light emission surface in which area is smaller than light-incidence surface, and light-incidence surface, and solar cell element which generates electric power. Light guide contains perylene compound and the incident light from the light-incidence surface makes radiated light from the compound absorb into the compound and arise the emission light.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Perylene compound is prepared by mixing tetrachloroperylene-tetracarboxylic-acid dianhydride and anthracene compound with propionic acid, heating reaction liquid, filtering and washing crystal and purifying the mixture, mixing the compound and potassium carbonate with N-methylpyrrolidone, heating the reaction liquid after mixing, cooling reaction liquid at room temperature, precipitating, filtering and washing the crystal, isolating fractionated compound and concentrating obtained fraction. Preferred Definitions:    R1=H or 1-22C alkyl, preferably 6-18C alkyl;    R11=H, 1-22C alkyl, preferably 6-18C alkyl or electron withdrawing group chosen from NO2, sulfo, CN, formyl, alkyl carbonyl, carboxy, alkylcarbonyloxy, alkyl carbonylamino, halo, ethynyl or -BZ2; and    Z=H, F or CN.    SPECIFIC COMPOUNDS - 5 of 45 Compounds (I) are specifically disclosed, e.g. group of formulae (1A)-301-(1A)-305.    EXAMPLE - Perylene compound was prepared by mixing 1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxylic-acid dianhydride and anthracene compound with propionic acid, heating reaction liquid at 140 degrees C for 6 hours, filtering and washing crystal and purifying the mixture, mixing the compound and potassium carbonate with N-methylpyrrolidone, heating the reaction liquid after mixing at 140 degrees C for 24 hours, cooling reaction liquid at room temperature, precipitating, filtering and washing the crystal, isolating fractionated compound and concentrating obtained fraction.