Rare earth fluoride nanocrystalline/TiO2 compound light anode and preparation method thereof
A technology of rare earth fluoride and nanocrystals, which is applied in photosensitive equipment, semiconductor/solid-state device manufacturing, photovoltaic power generation, etc., can solve the problems of low up-conversion efficiency and low light absorption rate, and achieve low cost, simple preparation process, and production strong security effect
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specific Embodiment approach 1
[0010] Specific implementation mode 1: In this implementation mode, a rare earth fluoride nanocrystal / TiO 2 Composite photoanodes made of rare earth fluoride nanocrystals, commercial TiO 2 It is made of FTO conductive glass.
[0011] Rare earth fluoride nanocrystals and commercial TiO described in this embodiment 2 The mass ratio is 1: (10~1000); the surface load of the FTO conductive glass described in this embodiment is 0.5~3.0mg / cm 2 .
[0012] The rare earth fluoride nanocrystals described in this embodiment are made from a rare earth salt solution, a surfactant solution, and a fluorine source solution, wherein the molar ratio of the rare earth salt in the rare earth salt solution to the surfactant in the surfactant solution is 1: (0.1~10), wherein the rare earth salt in the rare earth salt solution and F in the fluorine source solution - The molar ratio of is 1: (0.1~16); The commercial TiO described in this embodiment 2 It is P25 type nano-titanium dioxide; the FTO ...
specific Embodiment approach 2
[0014] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the rare earth salt solution is a rare earth nitrate solution or a rare earth chloride solution, wherein the solute in the rare earth nitrate solution is selected from yttrium nitrate, scandium nitrate, lanthanum nitrate, cerium nitrate, praseodymium nitrate, neodymium nitrate, samarium nitrate, europium nitrate, gadolinium nitrate, terbium nitrate, dysprosium nitrate, holmium nitrate, erbium nitrate, thulium nitrate, ytterbium nitrate and lutetium nitrate, the solvent is selected from water, Ethanol and ethylene glycol; wherein the solute in the rare earth chloride solution is selected from yttrium chloride, scandium chloride, lanthanum chloride, cerium chloride, praseodymium chloride, neodymium chloride, samarium chloride, europium chloride, Gadolinium chloride, terbium chloride, dysprosium chloride, holmium chloride, erbium chloride, thulium chloride, ytterbium chloride and...
specific Embodiment approach 3
[0015] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the surfactant solution is an ionic surfactant solution or a nonionic surfactant solution; wherein the ionic surfactant The solute in the solution is selected from cetyl trimethyl ammonium bromide, ethylenediamine tetraacetic acid, cetyl dimethyl benzyl ammonium bromide, cetyl polyoxyethylene ether dimethyl octane chloride Ammonium chloride, dodecyl alcohol polyoxyethylene ether group dimethyl methyl ammonium chloride, octylphenol polyoxyethylene ether group dimethyldecyl ammonium bromide, octylphenol polyoxyethylene ether group dimethyldecyl ammonium bromide Alkyl Ammonium Chloride, Cetyl Dimethyl Octyl Ammonium Chloride, Sodium Lauryl Sulfate, Sodium Lauryl Sulfonate, Sodium Cetyl Benzene Sulfonate, Octadecyl Sodium Alkyl Sulfate, Sodium N-Oleoyl Polypeptide, Sodium Fatty Alkyl Ethoxylate Sulfate and Disodium Fatty Alcohol Ether Sulfosuccinate, Coco Alkyl Dimethica...
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