Bis(N-phenyl)-3-carbazole substituted phenanthroimidazole compound, preparation method thereof and application thereof as electroluminescent device
A technology of phenanthroimidazole and compounds, which is applied in the field of organic light-emitting materials and optoelectronic devices, can solve the problems of unbalanced carrier transport and insufficient purity of luminous color, achieve carrier injection and transport balance, and improve fluorescence quantum Efficiency, the effect of achieving high fluorescence quantum efficiency
Inactive Publication Date: 2020-04-21
GUANGDONG UNIV OF TECH
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Abstract
The invention discloses a bis(N-phenyl)-3-carbazole substituted phenanthroimidazole compound, a preparation method thereof and application of the compound serving as an electroluminescent device. Thecompound has a molecular structure shown as a formula (I) shown in the specification. The preparation method comprises the following steps: carrying out a one-pot reaction on 4-bromobenzaldehyde, p-bromoaniline and 9,10-phenanthrenequinone to prepare 4,4-bisbromo-phenanthroimidazole; adding N-phenyl-3-carbazole boric acid, and carrying out a Suzuki reaction under the action of a catalyst tetrakis(triphenylphosphine) palladium, so as to obtain the bis(N-phenyl)-3-carbazole substituted phenanthroimidazole compound. The preparation method is simple and convenient, and large-scale batch preparation can be realized; the compound shown in the formula (I) has good carrier transport capacity, high fluorescence quantum yield in an aggregation state and high blue light color purity, and can be widely applied to organic light-emitting devices, especially stable and efficient dark blue organic light-emitting devices as a light-emitting material.
Application Domain
Organic chemistrySolid-state devices +3
Technology Topic
BromobenzeneBoronic acid +14
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