申请人:IDEMITSU KOSAN CO., LTD.
公开号:US10396288B2
公开(公告)日:2019-08-27
An organic EL device with high emission efficiency, an electronic equipment including the organic EL device, and a compound providing the organic EL device are provided. The compound is represented by formula (1):
wherein Ar1 represents a substituted or unsubstituted naphthalene ring; the substituent on the naphthalene ring is at least one selected from a fluorine atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, a group represented by —Si(R101)(R102)(R103), and a group represented by —Z—Ra; R1 and R2 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, a group represented by —Si(R101)(R102)(R103), an aryl group, or a heteroaryl group; R11 to R18 each independently represent a hydrogen atom, a fluorine atom, a cyano group, an alkyl group, a cycloalkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, a group represented by —Si(R101)(R102)(R103), or a group represented by —Z—Ra; each Z represents a single bond, an arylene group, a heteroarylene group, or a divalent linking group in which 2 to 4 groups selected from the above groups are linked together; Ra represents a group represented by —N(R104)(R105), an aryl group, or a heteroaryl group; and R101 to R105 each represent a hydrogen atom, an alkyl group, a cycloalkyl group, aryl group, or a heteroaryl group; provided that at least one selected from the substituent on the naphthalene ring and R11 to R18 represents a group represented by —Z—Ra.
本文提供了一种具有高发射效率的有机 EL 器件、一种包括该有机 EL 器件的电子设备,以及一种提供该有机 EL 器件的化合物。该化合物用式(1)表示:
其中 Ar1 代表取代或未取代的萘环;萘环上的取代基至少有一个选自氟原子、氰基、烷基、环烷基、烷氧基、芳氧基、烷硫基、芳硫基、由-Si(R101)(R102)(R103)代表的基团和由-Z-Ra 代表的基团;R1 和 R2 各自独立地代表氢原子、烷基、环烷基、由 -Si(R101)(R102)(R103)代表的基团、芳基或杂芳基;R11至R18各自独立地代表氢原子、氟原子、氰基、烷基、环烷基、烷氧基、芳氧基、烷硫基、芳硫基、由-Si(R101)(R102)(R103)代表的基团或由-Z-Ra代表的基团;每个Z代表单键、芳烯基、杂芳烯基或由 2 至 4 个从上述基团中选出的基团连接在一起的二价连接基团;Ra代表-N(R104)(R105)、芳基或杂芳基所代表的基团;R101至R105各自代表氢原子、烷基、环烷基、芳基或杂芳基;但至少有一个选自萘环上的取代基和R11至R18代表-Z-Ra所代表的基团。