TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The solar cell module comprises a light guide with a light-incident surface and a light-emission surface having area less than the light-incident surface, and receives light emitted from the light-emission surface. The light guide further comprises the phenanthro perylene derivative which absorbs radiated light from the light-emission surface and incident light from the light-incidence surface.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): The phenanthro perylene derivative (I) is obtained by reacting a phenanthro perylene dione of formula (II) with alkyne compounds of formulae: A1-CC-X1 and A2-CC-X2 using Grignard reagent and an organic lithium compound, and processing obtained perylene compound of formula (III) using organic solvents such as tetrahydrofuran.X1,X2=lithium or MgBr.Preferred Composition: The phenanthro perylene derivative (I) is of formulae (Ia)-(Ij).R11-R16=H, alkyl, aryl ethynyl, alkylamino, heterocyclyl, haloalkyl, carboxy, or cyano;R21a-R24a=H, 1-5C alkyl, or trialkylsilyl;R21b-R24b=H, 1-3C alkyl, alkoxy, hydroxy, amino, or halo, in which at least one is alkoxy, hydroxy, amino, or halo;R21c-R24c=H or 1-3C alkyl, in which at least one is H;R1a,R1d=H or alkyl, preferably H or 1-3C alkyl;R1b,R1c=H, alkyl, alkoxy, hydroxy, amino, or halogen;andZ1=-NH-, O, or S.(i) R1b near to R21b-R24b is H; (ii) R1c near to R21c-R24c is H; (iii) At least one R1d at the side of R13 is H; and (iv) At least one R1d at the side of R14 is H. SPECIFIC COMPOUNDS - 20 Phenanthro perylene derivatives e.g. 9,20-bis(2-(4-dodecylphenyl)ethynyl)octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1(27),2(28),3,5,7,9,11,13,15,17,19,21,23,25-tetradecaene of formula (A), 9,20-bis(2-(3,5-dicyclohexylphenyl)ethynyl)octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1(27),2(28),3,5,7,9,11,13,15,17,19,21,23,25-tetradecaene, 9,20-bis((2-(4-(2-phenylethynyl)phenyl)ethynyl))octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1(27),2(28),3,5,7,9,11,13,15,17,19,21,23,25-tetradecaene, 9,20-bis((2-(2,6-bis(propan-2-yl)phenyl)ethynyl))octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1(27),2(28),3,5,7,9,11,13,15,17,19,21,23,25-tetradecaene and 9,20-bis(2-(2,6-di-tert-butylphenyl)ethynyl)octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1(27),2(28),3,5,7,9,11,13,15,17,19,21,23,25-tetradecaene are disclosed.    EXAMPLE - 0.15 g 9,20-bis(2-(4-dodecylphenyl)ethynyl)octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1,3,4,6,10,12,14(28),15(27),16,18,21,23,25-tridecaene-9,20-diol, and 6 mL ethanol were stirred at room temperature. 0.07 g Tin-chloride(II)dihydrate was added to resulting mixture, 50% acetic acid aqueous solution was dripped, and stirred for 1 hour. The reaction liquid color changed from black to dark green. The precipitated crystal was filtered from the reaction liquid. The slurry was washed using water and ethanol, and compound 0.1 g 9,20-bis(2-(4-dodecylphenyl)ethynyl)octacyclo(13.11.1.12,10.03,8.04,25.019,27.021,26.014,28)octacosa-1(27),2(28),3,5,7,9,11,13,15,17,19,21,23,25-tetradecaene was obtained by drying.