Organic luminescent materials, coating solution using organic luminescent materials for organic emitting layer, organic light emitting device using coating solution, light source device using organic light emitting device and method of organic light emitting device

摘要

The objects of the present invention are to provide an organic luminescent material capable of being easily controlled for dopant concentrations. The present invention is characterized in that a organic light-emitting device comprising a upper electrode, a lower electrode; and a light-emitting layer positioned between the upper electrode and the lower electrode, wherein the light-emitting layer contains a host, a first dopant and a second dopant, the first dopant is a blue-light-emitting dopant or a green-light-emitting dopant, the first dopant has a first functional group, and the first functional group makes the first dopant transfer toward the surface of the light-emitting layer on the upper electrode side in the light-emitting layer.

主权项

1. A organic light-emitting device comprising:
an upper electrode;
a lower electrode; anda light-emitting layer positioned between the upper electrode and the lower electrode,wherein the light-emitting layer contains a host, a first dopant and a second dopant,a luminescent color of the first dopant and a luminescent color of the second dopant are different,the first dopant is a blue-light-emitting dopant or a green-light-emitting dopant,the first dopant has a first functional group,the first functional group makes the first dopant transfer toward the surface of the light-emitting layer on the upper electrode side in the light-emitting layer,and a peak position of the first dopant's concentration is between the upper electrode and the vertical center of the light-emitting layer, andwherein the first functional group is at least one species selected from the group consisting of fluoroalkyl, perfluoroalkyl, alkyl (of 10 carbon atoms or more), perfluoropolyether and siloxy groups.