Electrolyte for dye-sensitized solar cell and preparation method thereof, and solar cell
A technology of solar cells and dye sensitization, which is applied in the field of solar cells, can solve the problems of low overall efficiency of the cells, achieve the effects of prolonging the service life and suppressing volatilization
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Embodiment 1
[0027] Preparation of rare earth complexes of terbium and 5-nitro-8-hydroxyquinoline with terbium as the central ion:
[0028] (a) the 5-nitro-8-hydroxyquinoline that takes 1.15g is dissolved in the mixed solvent of 40mL ethanol and 40mL concentration and is the sodium hydroxide solution of 2.5wt%, is prepared into 5-nitro-8-hydroxyquinoline morphine mixture;
[0029] (b) take by weighing 0.76g terbium chloride and be dissolved in 10mL distilled water and make terbium chloride solution, and in this terbium chloride solution, dropwise add the hydrochloric acid solution of 2.5wt%, adjust pH value to 5.0, slowly add step ( a) Prepared 5-nitro-8-hydroxyquinoline mixed solution, while stirring and reacting, until the dropwise addition is complete, the reactant mixture is obtained;
[0030] (c) The reactant mixture obtained in step (b) is suction-filtered with a sand core funnel, respectively washed three times with distilled water and ethanol, and the product is placed in a watch ...
Embodiment 2
[0039] Terbium 5-nitro-8-hydroxyquinoline complex was prepared by the same method as in Example 1.
[0040] The preparation method of electrolyte for dye-sensitized solar cell is as follows:
[0041] (1) Dissolve the rare earth complexes prepared above in acetonitrile, configure a saturated solution, take 8g of the saturated solution and mix it with 12g of chelating agent polyethylene glycol (molecular weight 10000), and volatilize the acetonitrile in the mixture at normal temperature to obtain A homogeneous mixture of rare earth complexes and chelating agents;
[0042] (2) 0.635g elemental iodine and 4.15g potassium iodide are dissolved in a mixed solvent of 20ml acetonitrile and 5ml ethylene glycol (the iodide ion molar ratio concentration is 1mol / L), to obtain a mixed solution of elemental iodine and iodized salt;
[0043] (3) 5 g of the homogeneous mixture of the rare earth complex and chelating agent obtained in step (1) was weighed and mixed with 5 g of the mixed soluti...
Embodiment 3
[0046] Preparation of complexes of europium and 5-nitro-8-hydroxyquinoline with europium as the central ion:
[0047] (a) the 5-nitro-8-hydroxyquinoline that takes 2.3g is dissolved in the mixed solvent of the sodium hydroxide solution of 2.5wt% in 80mL ethanol and 80mL concentration, is prepared into 5-nitro-8-hydroxyquinoline morphine mixture;
[0048] (b) take by weighing 1.47g europium chloride and be dissolved in 20mL distilled water to obtain europium chloride solution, and dropwise add 2.5wt% hydrochloric acid solution in this europium chloride solution, adjust the pH value to 5.0, slowly add step ( a) Prepared 5-nitro-8-hydroxyquinoline mixed solution, while stirring and reacting, until the dropwise addition is complete, the reactant mixture is obtained;
[0049] (c) The reactant mixture obtained in step (b) is suction-filtered with a sand core funnel, respectively washed three times with distilled water and ethanol, and the product is placed in a watch glass and drie...
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