Single-layer organic electroluminescent device

C - Chemistry – Metallurgy – 09 – K

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C09K 11/06 (2006.01) H05B 33/14 (2006.01)

Patent

CA 2551723

Disclosed is an organic electroluminescent (EL) dye enabling to provide an organic electroluminescent device which is capable of emitting a light at a low voltage even when it has a single layer structure. Also disclosed is an organic electroluminescent device using such an organic electroluminescent dye. The organic electroluminescent dye is represented by the general formula (1): (Y-L)n X m wherein X is an n-valent charge-transporting group, Y is a light-emitting group, L is a linking group bonding the charge-transporting group and the light-emitting group, and m and n are respectively an integer not less than 1.

L'invention concerne un colorant électroluminescent organique permettant de former un dispositif électroluminescent organique capable d'émettre une lumière à basse tension même lorsqu'elle forme une structure monocouche. L'invention concerne également un dispositif électroluminescent organique comprenant un tel colorant électroluminescent. Ce colorant électroluminescent organique est représenté par la formule générale (1) : (Y-L)nXm, dans laquelle X représente un groupe transporteur de charge n-valent, Y représente un groupe luminescent, L représente un groupe de liaison reliant le groupe transporteur de charge et le groupe luminescent, et m et n sont chacun un nombre entier égal ou supérieur à 1.

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