Method for preparing dye sensitization TiO2 nano-crystalline film photoelectric electrode doping with metal
A dye-sensitized, thin-film electrode technology, applied in the field of dye-sensitized TiO2 nanocrystalline thin-film photoelectrodes, to achieve high photocurrent density, easy operation, and improved photovoltage effects
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Embodiment 1
[0026] (1) Mix tetrabutyl titanate and n-butanol to prepare a titanium salt solution (10:100 by volume), and mix butyl tantalate and n-butanol to prepare a metal dopant solution; then the titanium salt solution It is mixed with the metal dopant solution for hydrolysis reaction, wherein the metal tantalum content in the metal dopant in the mixed solution is 1% of the mass of the titanium salt; the reacted mixed solution is put into an autoclave, and the water Thermal reaction, the reaction time is 4 hours; the emulsion after the hydrothermal reaction is rotatively evaporated until the obtained metal-doped TiO 2 TiO doped with metal in the colloid 2 The mass percentage (solid content) of nanocrystalline particles reaches 12%;
[0027] (2) TiO doped with metal prepared in step (1) 2 In the colloid, add 1% of the colloid mass and have a light-scattering effect with a particle size of 25nm. 2 , configured as large particle TiO with light scattering effect 2 and metal-doped TiO ...
Embodiment 2
[0032] (1) Mix tetrabutyl titanate and n-butanol to prepare a titanium salt solution (volume ratio of 10:100), and mix tin chloride and n-butanol to prepare a metal dopant solution; then mix the titanium salt solution with The metal dopant solution is mixed for hydrolysis reaction, wherein the metal tin content in the metal dopant in the mixed solution is 5% of the mass of the titanium salt; the reacted mixed solution is put into an autoclave, and is subjected to hydrothermal heating at 240° C. reaction, and the reaction time is 4 hours; the emulsion after the hydrothermal reaction is finished is subjected to rotary evaporation until the obtained metal-doped TiO 2 TiO doped with metal in the colloid 2 The mass percentage (solid content) of nanocrystalline particles reaches 12%;
[0033] (2) TiO doped with metal prepared in step (1) 2 In the colloid, add 10% of the mass of the colloid to have a light scattering effect and a particle size of 25nm large particle TiO 2 , config...
Embodiment 3
[0038] (1) Mix tetrabutyl titanate and n-butanol to prepare a titanium salt solution (10:100 by volume), and mix tin chloride, butyl tantalate and n-butanol to prepare a metal dopant solution; then The titanium salt solution is mixed with the metal dopant solution to carry out the hydrolysis reaction, wherein the metal tin content in the metal dopant in the mixed solution is 1% of the mass of the titanium salt, and the metal tantalum in the metal dopant in the mixed solution The content is 1% of the mass of the titanium salt; the reacted mixed solution is put into an autoclave, and the hydrothermal reaction is carried out at 180° C., and the reaction time is 12 hours; the emulsion after the hydrothermal reaction is rotary evaporated until the obtained Metal-doped TiO 2 TiO doped with metal in the colloid 2 The mass percentage (solid content) of nanocrystalline particles reaches 12%;
[0039] (2) TiO doped with metal prepared in step (1) 2 In the colloid, add 10% of the mass...
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