A kind of thiazolone triphenylamine photosensitive dye and preparation method thereof
A photosensitive dye and triphenylamine technology, applied in the field of organic dyes, can solve the problems of destroying the coplanarity of molecules, unfavorable electron transfer, and narrowing of the spectral absorption range of photosensitive dye molecules, so as to achieve low preparation cost, improve electron donating ability, and broaden the Effect of Spectral Absorption Range
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Embodiment 1
[0042] Taking the preparation of thiazolone triphenylamine photosensitizing dyes with the following structural formula as an example, the preparation method is as follows:
[0043]
[0044] 1, preparation formula 1 compound
[0045] Add 300mL toluene and 300mL distilled water to the three-neck round bottom flask, then add 45.3g (0.3mol) benzothiazolone, 54.0g (0.33mol) bromohexane, 13.2g (0.33mol) sodium hydroxide, 9.6g (0.03 mol) tetrabutylammonium bromide, reacted at 60°C for 8 hours, lowered to room temperature, separated, the organic phase was washed with distilled water until neutral, dried with anhydrous magnesium sulfate, filtered, and the solvent was evaporated, and the residue was subjected to column chromatography Separation (the eluent is a mixture of petroleum ether: ethyl acetate = 2:1), 64.8 g of the compound of formula 1 was obtained, with a yield of 92%. Its chemical reaction equation is as follows:
[0046]
[0047] 2. Preparation of the compound of fo...
Embodiment 2
[0067] Taking the preparation of thiazolone triphenylamine photosensitizing dyes with the following structural formula as an example, the preparation method is as follows:
[0068]
[0069] In the step 1 of the preparation of the compound of formula 1 in Example 1, the hexyl bromide used is replaced with equimolar methyl iodide, the other steps of this step are the same as in Example 1, and the other steps are the same as in the corresponding examples to prepare thiazolone Triphenylamine photosensitive dye.
[0070] According to the method of Example 1, the thiazolone triphenylamine photosensitizing dye of this example was prepared into a dye-sensitized solar cell, and the photoelectric conversion efficiency was 5.96% and the short-circuit current was 12.9mA / cm after testing. 2 , the open circuit voltage is 690mV, and the fill factor is 0.67 (see figure 1 Middle curve 2), its photoelectric conversion efficiency reaches 84% of the photoelectric conversion efficiency of N7...
Embodiment 3
[0072] Taking the preparation of thiazolone triphenylamine photosensitizing dyes with the following structural formula as an example, the preparation method is as follows:
[0073]
[0074] In the step 1 of the preparation of the compound of formula 1 in Example 1, the hexyl bromide used is replaced with equimolar decane bromide, and the other steps of this step are the same as in Example 1, and the other steps are the same as in the corresponding examples to prepare thiazole Ketotriphenylamine photosensitive dye.
[0075] According to the method of Example 1, the thiazolone triphenylamine photosensitizing dye of this example was prepared into a dye-sensitized solar cell, and the photoelectric conversion efficiency was 5.85% and the short-circuit current was 12.0mA / cm after testing. 2 , the open circuit voltage is 739mV, and the fill factor is 0.66 (see figure 1 Middle curve 3), its photoelectric conversion efficiency reaches 82% of the photoelectric conversion efficiency ...
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