| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having a high efficiency and long life, and being reduced in the amount of impurities. <P>SOLUTION: This electroluminescent material having an organic group expressed by formula 1 or 2 [wherein, R<SP>1</SP>, R<SP>2</SP>are each independently a 1-8C alkyl or a 6-12C aryl group, provided that the R<SP>1</SP>, R<SP>2</SP>may form a ring by bonding together] as a partial structure is used in any of a light-emitting layer, positive hole-transporting layer and positive hole-injecting layer of the element. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
