Luminescent device
AssigneeCanon Kabushiki Kaisha
InventorsYuichi Hashimoto, Akihiro Senoo, Yomishi Toshida, Kazunori Ueno
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Abstract
A luminescent device in accordance with the present invention includes an anode, a cathode, and an organic layer containing at least one organic compound provided therebetween. The work function of the anode (Wf(anode)) and the Fermi level of the organic layer (Ef(anode)) being in contact with the anode satisfies the following equation (I): Ef(anode)−0.2≦Wf(anode)≦Ef(anode)+0.2[eV] (I)
Claims9
A luminescent device comprising an anode, a cathode, and an organic layer provided therebetween, wherein said organic layer has at least one hole transport layer that is in contact with the anode, wherein the work function of the anode (Wf (anode)) and the Fermi level of said hole transport layer (Ef (anode)) that is in contact with the anode satisfy the following relation:
- Ef(anode)−0.2≦Wf(anode)≦Ef(anode)+0.2[eV]
- and wherein the work function of the cathode (Wf (cathode)) and the Fermi level of the organic layer (Ef (cathode)) that is in contact with the cathode satisfy the following relation:
- Wf(cathode)<Ef(cathode).
Dependencies are inferred from the claim text.