Organic electroluminescence device and compound for organic electroluminescence device

An organic electroluminescence device, comprising:

• a first electrode;
• a second electrode on the first electrode;
• and
• an emission layer between the first electrode and the second electrode,
• wherein the first electrode and the second electrode each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, and Zn, a compound of two or more thereof, a mixture of two or more thereof, and an oxide thereof, and
• wherein the emission layer comprises a compound represented by Formula 1:
• wherein in Formula 1,
• M1 and M2 are each independently a substituted or unsubstituted hydrocarbon ring of 5 to 30 carbon atoms to form a ring, or a substituted or unsubstituted heterocycle of 2 to 30 carbon atoms to form a ring,
• Ra is a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group of 2 to 20 carbon atoms, a substituted or unsubstituted alkynyl group of 2 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms to form a ring, a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms to form a ring, a substituted or unsubstituted silyl group, a substituted or unsubstituted carbonyl group, a substituted or unsubstituted oxy group, a substituted or unsubstituted thio group, a substituted or unsubstituted boryl group, a substituted or unsubstituted phosphinyl group, a substituted or unsubstituted phosphineoxy group, a substituted or unsubstituted phosphine sulfide group, a substituted or unsubstituted sulfonyl group, or a substituted or unsubstituted sulfinyl group,
• Rb is a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group of 2 to 20 carbon atoms, a substituted or unsubstituted alkynyl group of 2 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms to form a ring, a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms to form a ring, a substituted or unsubstituted oxy group, a substituted or unsubstituted thio group, or a substituted or unsubstituted amino group,
• Ra and/or Rb are optionally combined with M1 or M2 to form a ring, and
• a substituent of M1 and M2 is a polycyclic hetero group represented by Formula 2:
• wherein in Formula 2,
• X is Si or Ge,
• M3 and M4 are each independently a substituted or unsubstituted hydrocarbon ring of 5 to 30 carbon atoms to form a ring, or a substituted or unsubstituted heterocycle of 2 to 30 carbon atoms to form a ring,
• L is a direct linkage, a substituted or unsubstituted arylene group of 6 to 30 carbon atoms to form a ring, or a substituted or unsubstituted heteroarylene group of 2 to 30 carbon atoms to form a ring, and
• Rc and Rd are each independently a substituted or unsubstituted alkyl group of 3 to 20 carbon atoms, a substituted or unsubstituted alkenyl group of 2 to 20 carbon atoms, a substituted or unsubstituted alkynyl group of 2 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms to form a ring, a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms to form a ring, a substituted or unsubstituted oxy group, a substituted or unsubstituted thio group, or a substituted or unsubstituted amino group, or
• Rc and Rd are combined with each other to form a substituted or unsubstituted hydrocarbon ring of 5 to 30 carbon atoms to form a ring, or a substituted or unsubstituted heterocycle of 2 to 30 carbon atoms to form a ring.