OLEDs doped with phosphorescent compounds
First Claim
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1. An organic light emitting device comprising:
- an anode;
a hole transporting layer;
an electron transporting layer; and
a cathode;
wherein the hole transporting layer or the electron transporting layer is an emissive layer, the emissive layer comprises a phosphorescent material and a charge-carrying host material, wherein the phosphorescent material emits phosphorescent radiation from a triplet molecular excited state at room temperature when a voltage is applied across the organic light emitting device.
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Abstract
Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electroluminescence wherein the heterostructure is comprised of an emissive layer containing a phosphorescent dopant compound. For example, the phosphorescent dopant compound may be comprised of platinum octaethylporphine (PtOEP), which is a compound having the chemical structure with the formula:
73 Citations
16 Claims
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1. An organic light emitting device comprising:
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an anode;
a hole transporting layer;
an electron transporting layer; and
a cathode;
wherein the hole transporting layer or the electron transporting layer is an emissive layer, the emissive layer comprises a phosphorescent material and a charge-carrying host material, wherein the phosphorescent material emits phosphorescent radiation from a triplet molecular excited state at room temperature when a voltage is applied across the organic light emitting device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An organic light emitting device comprising:
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an anode;
a hole transporting layer;
an emissive layer;
an electron transporting layer; and
a cathode;
wherein the emissive layer comprises a phosphorescent material and a charge-carrying host material, wherein the phosphorescent material emits phosphorescent radiation from a triplet molecular excited state at room temperature when a voltage is applied across the organic light emitting device. - View Dependent Claims (8, 9, 10)
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- 11. An organic light emitting device comprising an anode, a cathode and an emissive layer, wherein the emissive layer is located between the anode and the cathode, and the emissive layer comprises a phosphorescent material and a charge-carrying host material, wherein the phosphorescent material emits phosphorescent radiation from a triplet molecular excited state at room temperature when a voltage is applied across the organic light emitting device.
Specification