Electroluminescent material and device thereof

A compound, having a structure of H-L-Ar, wherein H has a structure represented by Formula 1:

• in Formula 1, A1, A2, and A3 are, at each occurrence identically or differently, selected from N or CR, and ring A, ring B, and ring C are, at each occurrence identically or differently, selected from a carbocyclic ring having 5 to 18 carbon atoms or a heterocyclic ring having 3 to 18 carbon atoms;
• Rx represents, at each occurrence identically or differently, mono-substitution, multiple substitutions or non-substitution;
• Ar has a structure represented by Formula 2:
• in Formula 2, Y1 to Y8 are each independently selected from C or CRy;
• Z is selected from O, BRz, PRz or SiRzRz;
• when two Rz exist at the same time, two Rz can be identical or different;
• L is selected from a single bond or has a structure represented by Formula 3:
• in Formula 3, ring G is selected from an aromatic ring having 6 to 30 carbon atoms;
• Rg represents, at each occurrence identically or differently, mono-substitution, multiple substitutions or non-substitution;
• R, Rx, and Rz are, at each occurrence identically or differently, selected from the group consisting of:
• hydrogen, deuterium, halogen, substituted or unsubstituted alkyl having 1 to 20 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 ring carbon atoms, substituted or unsubstituted heteroalkyl having 1 to 20 carbon atoms, substituted or unsubstituted heterocyclic group having 3 to 20 ring atoms, substituted or unsubstituted arylalkyl having 7 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 20 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkenyl having 2 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted heteroaryl having 3 to 30 carbon atoms, substituted or unsubstituted alkylsilyl having 3 to 20 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 20 carbon atoms, substituted or unsubstituted amino having 0 to 20 carbon atoms, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a cyano group, an isocyano group, a hydroxyl group, a sulfanyl group, a sulfinyl group, a sulfonyl group, a phosphino group, and combinations thereof;
• Ry and Rg are, at each occurrence identically or differently, selected from the group consisting of:
• hydrogen, deuterium, halogen, substituted or unsubstituted alkyl having 1 to 20 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 ring carbon atoms, substituted or unsubstituted heteroalkyl having 1 to 20 carbon atoms, substituted or unsubstituted heterocyclic group having 3 to 20 ring atoms, substituted or unsubstituted arylalkyl having 7 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 20 carbon atoms, substituted or unsubstituted aryloxy having 6 to 30 carbon atoms, substituted or unsubstituted alkenyl having 2 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, substituted or unsubstituted alkylsilyl having 3 to 20 carbon atoms, substituted or unsubstituted arylsilyl having 6 to 20 carbon atoms, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a cyano group, an isocyano group, a hydroxyl group, a sulfinyl group, a sulfonyl group, a phosphino group, and combinations thereof;
• adjacent substituents R, Rx can be optionally joined to form a ring;
• adjacent substituents Rg, Ry, Rz can be optionally joined to form a ring.