NOVELTY - Manufacturing nano-paste comprises (S1) preparing titanium dioxide precursor mixture comprising titanium isopropoxide, acetic acid, surfactant and alcohol, (S2) adding orthosilicate compound into the prepared mixture and performing phase changing to gelling water using water, (S3) heat treating the gelling water, and (S4) removing solvent from heat treated gelling water, adding ethanol, terpinol and ethyl cellulose, and mixing to prepare paste. The orthosilicate compound comprises e.g. tetraethyl orthosilicate, tetramethyl orthosilicate, tetrapropyl orthosilicate and tetrabutyl orthosilicate.    USE - The nano-paste is useful for manufacturing electrode for dye-sensitized solar cells (all claimed).    ADVANTAGE - The dye-sensitized solar cells maximize voltage and photoelectric conversion efficiency by reducing back reaction, and increases current carrying capacity.    DETAILED DESCRIPTION - Manufacturing nano-paste comprises (S1) preparing titanium dioxide precursor mixture comprising titanium isopropoxide, acetic acid, surfactant and alcohol, (S2) adding orthosilicate compound into the prepared mixture and performing phase changing to gelling water using water, (S3) heat treating the gelling water, and (S4) removing solvent from heat treated gelling water, adding ethanol, terpinol and ethyl cellulose, and mixing to prepare paste. The orthosilicate compound comprises tetraethyl orthosilicate, tetramethyl orthosilicate, tetrapropyl orthosilicate, tetrabutyl orthosilicate, tetraallyl orthosilicate, tetrakis(dimethylsilyl)orthosilicate, tetrakis(2-butoxyethyl)orthosilicate), tetraamyl orthosilicate, tetrahexyl orthosilicate, tetraisopropyl orthosilicate, tetraoctyl orthosilicate, tetraphenyl orthosilicate, tetratolyl orthosilicate, tetrakis(2-ethyl-1-butyl)orthosilicate and tetrakis(2-methoxyethyl)orthosilicate). INDEPENDENT CLAIMS are also included for:    (1) the nano-paste manufactured by the above method; and    (2) manufacturing electrode for dye-sensitized solar cells, comprising coating nano-paste on upper part of transparent substrate formed of conductive oxide layer, heat treating, performing dye adsorption, and drying to prepare optical electrode.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the method for manufacturing nano-paste for dye-sensitized solar cells (Drawing includes non-English language text).    Titanium dioxide precursor mixture preparing step (S1)    Phase changing step (S2)    Heat treating step (S3)    Paste preparing step (S4)