A combined luminescent material and its application
A technology of light-emitting materials and fluorescent materials, applied in the field of combined light-emitting materials, can solve the problems of low external quantum efficiency of organic light-emitting diodes, hindering the theoretical efficiency of devices, and limiting the promotion of diodes, etc.
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Embodiment 1
[0098] This embodiment provides a combined luminescent material, wherein:
[0099] Including 5wt% guest material, and 95wt% host material;
[0100] The host material is DSpiroAC-TRZ, which is thermally activated delayed fluorescence with horizontal orientation of high transition dipole moment, and the single-triplet exchange energy is 0.04 eV. The preparation method is shown in formula (1);
[0101] The guest material is TPA-AQ, and the preparation method is shown in formula (8).
Embodiment 2
[0103] This embodiment provides a combined luminescent material, wherein:
[0104] Including 5wt% guest material, and 95wt% host material;
[0105] The host material is DSpiroS-TRZ, which is thermally activated delayed fluorescence with a high transition dipole moment horizontal orientation, and the single-triplet exchange energy is 0.05 eV. The preparation method is shown in formula (2);
[0106] The guest material is the same as that used in Example 1.
Embodiment 3
[0108] This embodiment provides a combined luminescent material, wherein:
[0109] Including 5wt% guest material, and 95wt% host material;
[0110] The main material is the same as in Example 1;
[0111] The guest material is DBXZ-2FDBPZ, and the preparation method is shown in formula (9).
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