Organic electronic material and use thereof
An organic electronic material including a charge transporting polymer having a structure that is represented by Formula (1) and that is branched in three or more directions (in the formula, Rf's are each independently a fluoroalkyl group, a and b are 0 or 1, and a and b are not both 0 at the same time).
1. An organic electronic material comprising:
a charge transporting polymer having a structure branched in three or more directions,
wherein the charge transporting polymer comprises a trivalent or higher-valent structural unit, a divalent structural unit comprising a structural unit L1 having a structure represented by Formula (1) below, and a monovalent structural unit comprising a structural unit T1 having a structure represented by Formula (4-4) below,
in Formula (1), Rf's are each independently a fluoroalkyl group, a and b are 0 or 1, and a and b are not both 0 at the same time,
—Ar—O—(CH 2 ) n —Z (4-4)
in Formula (4-4), Ar is an arylene group or a heteroarylene group, n is 1 to 4, and Z is a polymerizable functional group.
2. The organic electronic material according to claim 1 , wherein the charge transporting polymer has hole injectability or hole transportability.
3. The organic electronic material according to claim 1 , wherein the charge transporting polymer further has one or more structures selected from the group consisting of an aromatic amine structure, a pyrrole structure, a carbazole structure, a thiophene structure, a benzene structure, an aniline structure, a phenoxazine structure, and a fluorene structure, where the structure represented by Formula (1) is excluded.
4. The organic electronic material according to claim 1 , wherein the polymerizable functional group is at least one selected from the group consisting of an oxetane group, an epoxy group, a vinyl group, an acryloyl group, and a methacryloyl group.
5. The organic electronic material according to claim 1 , further comprising a polymerization initiator.
6. The organic electronic material according to claim 5 , wherein the polymerization initiator is an ionic compound.
7. The organic electronic material according to claim 6 , wherein the ionic compound is an onium salt.
8. An ink composition comprising:
the organic electronic material according to claim 1 ; and
a solvent.
9. An organic thin film which is formed using the organic electronic material according to claim 1 .
10. An organic electroluminescent element comprising the organic thin film according to claim 9 .
11. The organic electroluminescent element according to claim 10 , further comprising a flexible substrate.
12. The organic electroluminescent element according to claim 10 , further comprising a resin film substrate.
13. A display element comprising the organic electroluminescent element according to claim 10 .
14. A lighting device comprising the organic electroluminescent element according to claim 10 .
15. A display device comprising:
the lighting device according to claim 14 ; and
a liquid crystal element as a display means.
16. The organic electronic material according to claim 1 , wherein a ratio of the structural unit L1 in the divalent structural unit is 30 mol % or more.
17. The organic electronic material according to claim 1 , wherein the monovalent structural unit of the charge transporting polymer further comprises a monovalent structural unit T2 represented by Formula (5) below,
in Formula (5), Rf's are each independently a fluoroalkyl group, a and b are 0 or 1, and a and b are not both 0 at the same time.