NOVELTY - The method involves using photo-electric for an application of nitrogen heterocyclic containing coordination functional macromolecule. A functional water phase or oil phase method is used for synthesizing functional semiconductor nano-crystal. A grouting material is made of polymer compound, and a polymer hybrid thin film material is prepared by solution blending and in-situ polymerization process, where the polymer hybrid thin film material is made of organic polymer material.    USE - Method for preparation of a surface functionalized semiconductor nano-crystal and polymer hybrid thin film material for an LED, photovoltaic device and a solar battery device (all claimed).    DETAILED DESCRIPTION - The coordination functional macromolecule is selected from a group consisting of hydroxy-quinoline, 5nitro-8-hydroxy-quinoline, 5-amino-8hydroxy-quinoline, 5 -8, 5-2methacryloyl ethoxy methyl-8, 4-1, 5naphthyridine, 2-2 phenyl oxazole, 2-2 phenyl benzothiazole. The coordination functional macromolecule is made of material selected from a group consisting of homopolymer or copolymer that comprises methacryloyl ethoxy methyl -8-hydroxy-quinoline or salt with a copolymer of methyl methacrylate, styrene, vinyl carbazole, isopropyl acrylamide, methacrylic acid, 3 silicon propyl methacrylate, glycidyl methacrylate and hydroxyethyl methacrylate. The semiconductor nano-crystal is made of materials consisting of water soluble cadmium telluride/ zinc sulfide, cadmium sulfide/ zinc sulfide, cadmium selenide/ zinc sulfide, zinc selenide /zinc sulfide, core-shell nano-crystal, or oil soluble cadmium telluride/ zinc sulfide, cadmiu selenide/ cadmium sulfide/ zinc sulfide, cadmium telluride/ cadmiu selenide/ zinc sulfide, Zinc oxide or magnesium ion, cadmium Zinc sulfide, cadmium zinc selenide and cadmium zinc selenide sulfide type nanocrystalline alloy. The polymer hybrid thin film material is made of organic polymer material consisting of polystyrene, polymethyl methacrylate, dimethyl acrylamide, acrylamide monomer and polymer, or 4-vinyl benzyl isothiouronium salt and 1, 4-methyl-5.    DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation of a method for preparation of surface functionalized semiconductor nano-crystal and polymer hybrid thin film material.