To provide a novel carbazole compound that has an excellent carrier-transport property and can be used for a transport layer or as a host material in a light-emitting element. Further, to provide an organic semiconductor material and a material for a light-emitting element using the carbazole compound. A carbazole compound in which the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is substituted with the 2- or 3-position of a carbazole skeleton directly or via an arylene group can be synthesized. The carbazole compound is found to have a suitable carrier-transport property, a good film quality, and be used suitably as a material of a light-emitting element and an organic semicondcutor material. Note that nitrogen of the carbazole skeleton is substituted with any of a phenyl group, a biphenyl group, and a naphthyl group.
提供一种新型的
咔唑化合物,具有出色的载流子传输性能,可用作输运层或发光元件中的主体材料。此外,提供使用该
咔唑化合物的有机半导体材料和发光元件材料。可以合成一种
咔唑化合物,其
二苯并噻吩骨架或
二苯并呋喃骨架的4位被直接或通过芳基烃基取代为
咔唑骨架的2位或3位。发现该
咔唑化合物具有适当的载流子传输性能、良好的薄膜质量,并适用于发光元件材料和有机半导体材料。请注意,
咔唑骨架的氮原子被苯基、
联苯基和
萘基中的任何一种取代。