Organic electroluminescent device having conductive layers in a cathode layer and an electron transporting layer having a metal complex

摘要

An organic electroluminescent device including an anode layer, an organic functional layer and a cathode layer is provided. The organic functional layer is disposed between the anode layer and the cathode layer. The cathode layer includes a first conductive layer and a second conductive layer. The first conductive layer is disposed between the organic functional layer and the second conductive layer, and work function of the first conductive layer is higher than work function of the second conductive layer.

主权项

1. An organic electroluminescent device, comprising:
an anode layer; an organic functional layer, comprising an organic electroluminescent layer and an electron transporting layer, wherein the organic electroluminescent layer is disposed between the anode layer and the electron transporting layer; and a cathode layer, the organic functional layer being disposed between the anode layer and the cathode layer, and the cathode layer being consisting of:
a first conductive layer, wherein the first conductive layer is a single layer made from a single material; anda second conductive layer, the first conductive layer being disposed between the electron transporting layer and the second conductive layer, wherein the first conductive layer is in physical contact with the electron transporting layer and the second conductive layer, the electron transporting layer is doped with a metal complex compound, and work function of the first conductive layer being higher than work function of the second conductive layer.