Nanocomposite comprising titanium oxide/metal nanoparticles/carbon nanostructures, and the preparing the nanocomposite, and DSSC electrode using the nanocomposite

摘要

PURPOSE: A nanocomposite is provided to have excellent surface Plasmon effect and electron mobility by including optimum content of TiO2, metal nanoparticle, and carbon nanostructure. CONSTITUTION: A nanocomposite comprises a TiO2 nanoparticle or microparticle, TiO2 precursor or a particle thereof, and a mixture thereof; carbon nanostructure; and a metal nanoparticle. The metal nanoparticle is selected from Au, Ag, Cu, Ni, Zn, Pt, and Pd. The size of the metal nanoparticle is 0.1-100nm. The shape of the metal nanoparticle is selected from an isomeric particle, a thin elongated particle, and a platelet particle. The content of the carbon nanostructure is 0.1-5 weight%. The content of the metal nanoparticle is 0.1-10 weight%. [Reference numerals] (AA) Surface treatment of CNT using HNO3 and dispersion using sonication and centrifuge; (BB) Synthesis of TiO2/nano-size metal/CNT composites paste by adding and dispersing metal nanoparticles and TiO2 in a CNT solution; (CC) Manufacturing of DSSC by printing and thermally sintering TiO2/nano-size metal/CNT composites paste on a substrate;