High work function transparent conducting oxides as anodes for organic light-emitting diodes
OwnerTobin J. Marks, He Yan +4inventors
InventorsTobin J. Marks, He Yan, Jun Ni, Ji Cul, Anchuan Wang, Nikki L. Edleman
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Abstract
Transparent conducting oxide compositions having enhanced work function, for use with anode structures and light-emitting diode devices.
Claims20
An organic light-emitting device comprising an anode component comprising a metal conducting oxide material having a work function greater than 4.7 eV, a cathode component and at least one organic conductive layer therebetween.
An optoelectric anode component comprising a doped indium oxide composition having a work function greater than about 5.0 eV.
A method of using energy level alignment to enhance the performance properties of an organic light-emitting diode device, said method comprising:
- providing an anode component comprising a conductive oxide material, said material having a work function;
- and
- contacting said anode with a conductive layer comprising an organic composition having an ionization potential, said ionization potential level and said work function level aligned, said alignment defined by a difference between said ionization potential and said work function less than 1.2 eV.
Dependencies are inferred from the claim text.