TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The photoactive group is at least optionally substituted phenylene-based, pyrene-based, rubrene-based, coumarin-based, oxazine-based, carbazole-based, thiophene-based, iridium-based, porphyrin-based or azo-based dye group bonded phenyl-based ring, a heterocyclic ring, a photoactive functional group having a double or triple bond in a ring or its derivatives. The distance between the photoactive groups is 13-16 Angstrom . The average thickness of the siloxane main chain is 4-5 Angstrom .    TECHNOLOGY FOCUS - POLYMERS - Preparation of (I) comprises reacting a trifunctional silane compound with a photoactive compound to prepare a monomer, and hydrolyzing and condensation polymerizing the monomer at the same time. Preferred Method: The reaction of the trifunctional silane compound with the photoactive compound is performed by reacting the trifunctional silane compound and the photoactive group in the presence of one or more catalyst comprising potassium hydroxide, sodium hydroxide, sodium carbonate or potassium carbonate. (I) is prepared at room temperature to 200 degrees C. Preferred Components: (I) is copolymerized from monomers with different photoactive groups, where the monomers have a structure of formula (R1-O-Si((R)-O-R1)-O-R1) (II). (I) has a structure of formula (A).R = phenylene-based, pyrene-based, rubrene-based, coumarin-based, oxazine-based, carbazole-based, thiophene-based, iridium-based, porphyrin-based or azo-based dye group bonded phenyl-based ring, a heterocyclic ring, a photoactive functional group having a double or triple bond in a ring or its derivative, which is connected to Si atom directly or via an alkyl group, where R is optionally substituted in (A); andR1 = 1-3C alkyl (optionally substituted). EXAMPLE - 3-Bromopropyltrimethoxysilane (BPTMS) and carbazole were reacted in dimethylformamide at 130 degrees C for 48 hours in the presence of potassium carbonate to synthesize 9-(3-(trimethoxysilyl)propyl)-9H-carbazole monomer. The monomer and potassium carbonate were subjected to the next step without purification, except for removing the solvent and excess BPTMS using a vacuum evaporator. The monomer was dissolved again in dimethylformamide and then hydrolyzed at room temperature by adding 10 times the volume of water by single drip irrigation. As the monomer was hydrolyzed, the hydrolyzed monomer was simultaneously polymerized by condensation to give poly(propylcarbazole silsesquioxane) as yellow precipitate in solution, after 1 hour.