Phosphorescent material, phosphorescent film and preparation method and application thereof
A phosphorescent material and phosphorescent technology, applied in the field of phosphorescent materials, can solve the problems of limitations, lack of flexibility, tailorability and self-repairing properties, and achieve excellent flexibility, easy large-area preparation, and reduce the effect of non-radiative transition rate
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Embodiment 1
[0060] This embodiment provides a flexible monomolecular state phosphorescent material and the film prepared therefrom, and the specific method is as follows:
[0061] Step 1: Weigh 20.00 g of polyvinyl alcohol and add it into 300 mL of deionized water, heat at 100° C. and stir to dissolve for 4 hours to prepare polyvinyl alcohol hydrogel. Dissolve 0.06 g of 9-fluorenecarboxylic acid molecules in 10 mL of ethanol, add to the above hydrogel, and heat and stir at 100° C. for 4 h.
[0062] Step 2, spread the mixed solution described in step 1 evenly on 40×40cm 2 The molds were dried in a 40°C oven for one day.
[0063] Step 3, peeling off the film obtained by drying in step 2 to obtain a large-area flexible monomolecular state phosphorescent film.
[0064] Using a 280nm ultraviolet lamp as the excitation light source, the phosphorescence spectrum was measured at room temperature, the results are as follows figure 1 shown. From figure 1 It can be known that the phosphorescenc...
Embodiment 2
[0067] This embodiment provides a flexible monomolecular state phosphorescent material and the film prepared therefrom, and the specific method is as follows:
[0068] Step 1: Weigh 20.00 g of polyvinyl alcohol and add it into 300 mL of deionized water, heat at 100° C. and stir to dissolve for 4 hours to prepare polyvinyl alcohol hydrogel. Dissolve 0.20 g of 9-carbazole acetic acid molecule in 10 mL of ethanol, add it to the above hydrogel, and heat and stir at 100° C. for 4 h.
[0069] Step 2, spread the mixed solution described in step 1 evenly on 40×40cm 2 The molds were dried in a 40°C oven for one day.
[0070] Step 3, peeling off the film obtained by drying in step 2 to obtain a large-area flexible monomolecular state phosphorescent film.
[0071] The flexible monomolecular state phosphorescent film was cut to obtain a circular window grille by the paper-cutting technique, and a 280nm ultraviolet lamp was used as the excitation light source. Such as Figure 6 As show...
Embodiment 3
[0073] This embodiment provides a flexible monomolecular state phosphorescent material and the film prepared therefrom, and the specific method is as follows:
[0074] Step 1: Weigh 10.00 g of polyvinyl alcohol and add it into 150 mL of deionized water, heat at 100° C. and stir to dissolve for 4 hours to prepare polyvinyl alcohol hydrogel.
[0075] Dissolve 0.10 g of 9-carbazole acetic acid molecule in 10 mL of ethanol, add it into polyvinyl alcohol hydrogel, and heat and stir at 100° C. for 4 h. In another pot, 10.00 g of polyvinyl alcohol was weighed and added into 150 mL of deionized water, heated at 100° C. and stirred for 4 hours to dissolve, thereby preparing the first phosphorescent material.
[0076] 0.05 g of 2-(1,3-dioxo-1H-benzisoquinolin-2(3H)-yl)acetic acid molecule was dissolved in 10 mL of ethanol and added to the polyvinyl alcohol hydrogel, Heat and stir at 100° C. for 4 h to obtain the second phosphorescent material.
[0077] Step 2, the first phosphorescent...
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