Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
In an organic compound, two groups each including a benzonaphthofuranylamine skeleton are bonded to a central skeleton including a fluorene skeleton. The organic compound emits favorable blue light. Furthermore, the organic compound has a high hole-transport property.
1. A light-emitting element comprising:
a first electrode;
a second electrode;
a hole-transport layer between the first electrode and the second electrode; and
a light-emitting layer comprising a phosphorescent substance,
wherein the hole-transport layer includes an organic compound represented by general formula (G1),
A 1 -B-A 2 (G1)
wherein in the general formula (G1), A 1 and A 2 separately represent a group including a benzonaphthofuranylamine skeleton, and B represents a group including a fluorene skeleton.
2. A light-emitting device comprising:
the light-emitting element according to claim 1 ; and
a transistor or a substrate.
3. An electronic device comprising:
the light-emitting device according to claim 2 ; and
a sensor, an operation button, a speaker, or a microphone.
4. A lighting device comprising:
the light-emitting device according to claim 2 ; and
a housing.
5. The light-emitting element according to claim 1 ,
wherein the organic compound is represented by any one of general formulae (B-1) to (B-10),
wherein in the general formulae (B-1) to (B-10), R 1 to R 10 , R 30 to R 33 , R 40 to R 43 , R 50 to R 53 , R 70 to R 73 , R 80 to R 83 , and R 90 to R 93 separately represent any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 13 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 6 carbon atoms, a cyano group, halogen, and a substituted or unsubstituted haloalkyl group having 1 to 6 carbon atoms,
wherein at least two of R 3 to R 10 , R 30 to R 33 , R 40 to R 43 , R 50 to R 53 , R 70 to R 73 , R 80 to R 83 , and R 90 to R 93 in each of the general formulae (B-1) to (B-10) are groups selected from general formulae (A-1) to (A-8) whose bonding positions are α,
wherein in the general formulae (A-1) to (A-8), R 11 to R 18 , R 20 to R 27 , R 60 to R 67 , and R 100 to R 115 separately represent any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 13 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 6 carbon atoms, a cyano group, halogen, and a substituted or unsubstituted haloalkyl group having 1 to 6 carbon atoms, and
wherein R 19 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 13 carbon atoms.
6. The light-emitting element according to claim 5 ,
wherein the at least two of R 3 to R 10 , R 30 to R 33 , R 40 to R 43 , R 50 to R 53 , R 70 to R 73 , R 80 to R 83 , and R 90 to R 93 in each of the general formulae (B-1) to (B-10) are groups represented by the general formula (A-3),
7. The light-emitting element according to claim 6 ,
wherein the organic compound is represented by the general formula (B-1) or (B-4).
8. The light-emitting element according to claim 7 ,
wherein the organic compound is represented by general formula (G2),
9. The light-emitting element according to claim 7 ,
wherein the organic compound is represented by general formula (G3),
10. The light-emitting element according to claim 1 , wherein the phosphorescent substance has an emission peak at 440 nm to 520 nm.
11. The light-emitting element according to claim 1 , wherein the phosphorescent substance has an emission peak at 500 nm to 600 nm.
12. The light-emitting element according to claim 1 , wherein the phosphorescent substance has an emission peak at 600 nm to 700 nm.