Light-emitting device material and light-emitting device

Abstract

Embodiments provide a light emitting device material characterized by containing an anthracene compound represented by the following general formula. where R 19 to R 37 are a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group or the like; n is 1 or 2; and A is a heteroarylene group or arylene group. Any one of the R 19 to R 27 and any one of the R 28 to R 37 are used for linking with A. The present teachings allow a light emitting device having high luminous efficiency and excellent durability.

1 - 11 . (canceled) 
     
     
         12 . A light emitting device material comprising an anthracene compound represented by the following general formula (3) 
       
         
           
           
               
               
           
         
         wherein R 19  to R 37  each is same or different and selected from among a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group, alkoxy group, alkylthio group, arylether group, arylthioether group, phenyl group, alkyl substituted phenyl group, alkoxy substituted phenyl group, aryl substituted phenyl group, naphtyl group, alkyl substituted naphtyl group, alkoxy substituted naphtyl group, aryl substituted naphtyl group, phenanthryl group, alkyl substituted phenanthryl group, alkoxy substituted phenanthryl group, aryl substituted phenanthryl group, heteroaryl group and silyl group, n is 1 or 2, A is a heteroarylene group or an arylene group with a carbon number in a range of 6 to 12, and any one of the R 19  to R 27  and any one of the R 36  to R 37  link with A. 
       
     
     
         13 . A light emitting device material according to  claim 12 , wherein R 19  and R 36  or R 37  of the general formula (3) with A. 
     
     
         14 . A light emitting device material according to  claim 12 , wherein A of the general formula (3) comprises a phenylene group having no substituents or a phenylene group substituted with a group, the group comprising an alkyl group with a carbon number in a range of 1 to 6 or an alkoxy group with a carbon number in a range of 1 to 6 or less. 
     
     
         15 . A light emitting device material according to  claim 12 , wherein R36 or R37 of the general formula (3) comprises a phenyl group having no substituents, an alkyl substituted phenyl group, an alkoxy substituted phenyl group, an aryl substituted phenyl group, a naphtyl group having no substituents, an alkyl substituted naphtyl group or an alkoxy substituted naphtyl group. 
     
     
         16 . A light emitting device material according to  claim 12 , wherein at least one of R29, R30, R33, and R34 of the general formula (3) is substituted with an alkyl group with a carbon number in a range of 1 to 6. 
     
     
         17 . A light emitting device comprising at least a luminescent layer between an anode and a cathode to emit light by electric energy, the luminescent layer comprising the light emitting device material according to  claim 12 . 
     
     
         18 . A light emitting device according to  claim 17 , wherein the luminescent layer comprises the light emitting device material containing an anthracene compound represented by the general formula (3). 
     
     
         19 . A light emitting device according to  claim 17 , wherein the luminescent layer comprises a host material and a dopant material, and wherein the host material comprises the light emitting device material containing an anthracene compound represented by the general formula (3). 
     
     
         20 . A light emitting device according to  claim 17 , further comprising at least an electron transporting layer between the luminescent layer and the cathode, wherein the electron transporting layer comprises a compound having a heteroaryl ring structure containing electron-accepting nitrogen and wherein the compound comprises an element selected from among carbon, hydrogen, nitrogen, oxygen, silicon and phosphorus.