Organic light-emitting element, and light-emitting material and fluorescent body used in same
Disclosed is an organic light-emitting device using a compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer. The compound includes, for example, a compound represented by the general formula. X 1 to X 3 each represent O or S; R 1 to R 6 each represent n H or a substituent; n, n1 to n3 each represent an integer of 1 to 3.
1. An organic light-emitting device using a compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer, wherein the compound is represented by the following general formula (1):
wherein X 1 to X 3 each independently represent O or S; R 1 to R 6 each independently represent n H or a substituent; n, n1 to n3 each independently represent an integer of 1 to 3; R 1 and R 2 , R 3 and R 4 , R 5 and R 6 each may bond to each other to form a cyclic structure.
2. The organic light-emitting device according to claim 1 , wherein R 1 and R 2 , R 3 and R 4 , R 5 and R 6 in the general formula (1) each bond to each other to form a cyclic structure.
3. The organic light-emitting device according to claim 1 , wherein the compound capable of emitting delayed fluorescence and capable of undergoing intramolecular hydron transfer is a compound represented by the following general formula (2):
wherein X 1 to X 3 each independently represent O or S; R 11 to R 22 each independently represent n H or a substituent; n, n1 to n3 each independently represent an integer of 1 to 3; R 11 and R 12 , R 12 and R 13 , R 13 and R 14 , R 15 and R 16 , R 16 and R 17 , R 17 and R 18 , R 19 and R 20 , R 20 and R 21 , R 21 and R 22 each may bond to each other to form a cyclic structure.
4. The organic light-emitting device according to claim 3 , wherein R 11 , R 14 R 15 , R 18 , R 19 and R 22 each are n H.
5. A light-emitting film comprising a host material and a compound represented by the following general formula (1):
wherein X 1 to X 3 each independently represent O or S; R 1 to R 6 each independently represent n H or a substituent; n and n1 to n3 each independently represent an integer of 1 to 3; and R 1 and R 2 , R 3 and R 4 , R 5 and R 6 each may bond to each other to form a cyclic structure.