AN ELECTRON TRANSPORT MATERIAL AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME

摘要

The present invention relates to an organic electroluminescent device comprising an electron transport material which comprises a compound having a specific structure. The organic electroluminescent device comprising the electron transport material of the present invention provides low driving voltage, high luminous efficiency, excellent lifespan characteristics, and excellent color coordination to efficiently emit blue light.

主权项

1. An electron transport material comprising a compound represented by the following formula 1: wherein A represents a substituted or unsubstituted 5- to 30-membered heteroaryl; L represents a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted 5- to 30-membered heteroarylene; X represents CR11R12; R1 and R2 each independently represent hydrogen, deuterium, a halogen, a cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted 5- to 30-membered heteroaryl, a substituted or unsubstituted (C6-C30)aryl(C1-C30)alkyl, a substituted or unsubstituted (C3-C30)cycloalkyl, a substituted or unsubstituted (C1-C30)alkoxy, a substituted or unsubstituted (C1-C30)alkylsilyl, a substituted or unsubstituted (C6-C30)arylsilyl, a substituted or unsubstituted (C6-C30)aryl(C1-C30)alkylsilyl, a substituted or unsubstituted (C1-C30)alkylamino, a substituted or unsubstituted (C6-C30)arylamino, or a substituted or unsubstituted (C1-C30)alkyl(C6-C30)arylamino; or are linked to an adjacent substituent(s) to form a mono- or polycyclic (C3-C30) alicyclic or aromatic ring whose carbon atom(s) may be replaced with at least one hetero atom selected from nitrogen, oxygen, and sulfur; R3 represents hydrogen, deuterium, a halogen, a cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted 5- to 30-membered heteroaryl; or are linked to an adjacent substituent(s) to form a mono- or polycyclic (C3-C30) alicyclic or aromatic ring whose carbon atom(s) may be replaced with at least one hetero atom selected from nitrogen, oxygen, and sulfur; R11 and R12 each independently represent a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted 5- to 30-membered heteroaryl; or are linked to each other to form a mono- or polycyclic (C3-C30) alicyclic or aromatic ring whose carbon atom(s) may be replaced with at least one hetero atom selected from nitrogen, oxygen, and sulfur; a and b each independently represent an integer of 1 to 4, where a or b is an integer of 2 or more, each of R1 and each of R2 may be the same or different; c represents an integer of 1 to 2, where c is 2, each of R3 may be the same or different; and the heteroaryl(ene) contains at least one hetero atom selected from B, N, O, S, P(═O), Si, and P.