Benzoxazole derivative, light-emitting element, light-emitting device, electronic device, and lighting device
申请人:Kawata Yuko
公开号:US08546584B2
公开(公告)日:2013-10-01
A novel benzoxazole derivative having high excitation energy, particularly high triplet excitation energy is provided. A light-emitting element having high current efficiency is provided by application of the novel benzoxazole derivative for the light-emitting element. A light-emitting device, an electronic device, and a lighting device each having reduced power consumption are provided. The benzoxazole derivative is represented by General Formula (G1). In the formula, R11 to R14 and R21 to R27 separately represent any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and Z represents either a sulfur atom or an oxygen atom.
提供了一种具有高激发能量,特别是高三重激发能量的新型苯并噁唑衍生物。通过将新型苯并噁唑衍生物应用于发光元件,提供了具有高电流效率的发光元件。提供了功耗降低的发光装置、电子装置和照明装置。苯并噁唑衍生物由通式(G1)表示。在该式中,R11至R14和R21至R27分别表示氢、具有1至4个碳原子的烷基或具有6至13个碳原子的取代或未取代芳基中的任意一种,Ar表示具有6至13个碳原子的取代或未取代芳烃基,Z表示硫原子或氧原子。