Patent ID: 8048536

Claim:
An organic EL device comprising an organic layer of a single-layer sandwiched between a pair of electrodes, the organic layer containing an organic EL dye formed by linking a light-emitting group Y represented by the formula: (Y—L) n X m to a charge-transporting group X, wherein: X represents a charge-transporting group, which is a hole-transporting group consisting of a 9,10-bis(chloromethyl)anthracene group, Y represents a light-emitting group consisting of oxadiazolopyridine derivatives represented by the following formula: wherein R 1 and R 2 are independent from each other and represent an aromatic hydrocarbon group optionally having a substituent, L is a linking group bonding the charge-transporting group and the light-emitting group, and L is represented by the formula A 1 -R 1 -A 2 , wherein A 1 is a first bonding group to be bonded to the charge-transporting group and consists of an oxygen atom, A 2 is a second bonding group to be bonded to the light-emitting group and consists of an amide group, and R 1 is a spacer group linking the first bonding group with the second bonding group and consists of an alkylene group, and m and n are each an integer not less than 1.