Symmetrical sulfone-containing wet-processing blue organic electroluminescent material, preparation method and application thereof
A luminescent and symmetrical technology, applied in the direction of luminescent materials, preparation of organic compounds, organic chemistry, etc., can solve the problems of low efficiency, color purity difference of blue light materials, etc., to reduce costs, improve stability, and facilitate wet methods Processing effect
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Embodiment 1
[0048] In this embodiment, the structural formula of the sulfone-containing wet-processing organic electroluminescent blue light-emitting material is as follows:
[0049]
[0050] The sulfone-containing organic electroluminescent blue light-emitting material utilizes the easy delocalization of electrons of fluorene, and the rigid planarity is easy to modify. Through two C 8 The alkyl chain acts as a substituent of fluorene to increase the solubility of the whole material and facilitate wet processing; at the same time, two special Cs are introduced into the central carbazole 8 The alkyl chains, which increase the solubility of the overall material and make the overall material easy to wet process, constitute the two interlayer donor moieties.
[0051] The synthetic route of the sulfone-containing wet-processing organic electroluminescent blue luminescent material is shown in the following synthetic route, specifically as follows:
[0052]
[0053]
[0054]
[0055...
Embodiment 2
[0068] In this embodiment, the structural formula of the sulfone-containing wet-processing organic electroluminescent blue light-emitting material is as follows:
[0069]
[0070] The sulfone-containing wet-processing organic electroluminescent blue light-emitting material utilizes the easy delocalization of electrons of fluorene, and the rigidity and planarity are easy to modify. 8 The alkyl chain acts as a substituent of fluorene to increase the solubility of the whole material and facilitate wet processing; at the same time, two special Cs are introduced into the central carbazole 8 The alkyl chains, which increase the solubility of the overall material and make the overall material easy to wet process, constitute the two interlayer donor moieties.
[0071] The synthesis route of the sulfone-containing wet-processing organic electroluminescent blue light-emitting material is shown in the above synthesis route, specifically as follows:
[0072] Step 1: Synthesis (2a)
...
Embodiment 3
[0083] In this embodiment, the structural formula of the sulfone-containing wet-processing organic electroluminescent blue light-emitting material is as follows:
[0084]
[0085] The sulfone-containing wet-processing organic electroluminescent blue light-emitting material utilizes the easy delocalization of electrons of fluorene, and the rigidity and planarity are easy to modify. 8 The alkyl chain acts as a substituent of fluorene to increase the solubility of the whole material and facilitate wet processing; at the same time, two special Cs are introduced into the central carbazole 8 The alkyl chains, which increase the solubility of the overall material and make the overall material easy to wet process, constitute the two interlayer donor moieties.
[0086] The synthesis route of the sulfone-containing wet-processing organic electroluminescent blue light-emitting material is shown in the above synthesis route, specifically as follows:
[0087] Step 1: Synthesis (1c)
...
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