Electroluminesecent material, method for manufacturing same, and light emitting device

A method for manufacturing an electroluminescent material, comprising:

• providing a first reactant and a second reactant, and reacting the first reactant and the second reactant to generate a first intermediate product, wherein the first reactant is a compound containing a R3 group, a structural formula of the R3 group is one selected from the group consisting of
• a structural formula of the second reactant is
• the first intermediate product is a compound containing a R1 group, a structural formula of the R1 group is one selected from the group consisting of
• and
• providing a third reactant, and reacting the first intermediate product and the third reactant to generate the electroluminescent material, wherein the third reactant comprises a compound containing a R2 group, and a structural formula of the R2 group is

A light emitting device comprising:

• a substrate layer, wherein the substrate layer comprises a base and an anode layer, the anode layer is formed on the base;
• a hole injection layer, wherein the hole injection layer is formed on the anode layer;
• a hole transport layer, wherein the hole transport layer is formed on the hole injection layer;
• a light emitting layer, wherein the light emitting layer is formed on the hole transport layer;
• an electron transport layer, wherein the electron transport layer is formed on the light emitting layer;
• and
• a cathode layer, wherein the cathode layer is formed on the electron transport layer;
• wherein the light emitting layer comprises the electroluminescent material, wherein a structural formula of the electroluminescent material is R2-R1-R2, wherein a structural formula of R1 group comprises one selected from the group consisting of
• and a structural formula of R2 group comprises one selected from the group consisting of