Transparent electrodes
AssigneeUniversal Display Corporation
InventorsMin-Hao Michael Lu, Michael S. Weaver
Life of this patent
Estimating the term…
Abstract
A cathode adapted for use in an organic optoelectronic device is provided. The cathode has an electron injection layer, an organic buffer layer, a conducting layer, and a transparent conductive oxide layer disposed, in that order, over the organic operative layers of the optoelectronic device. A method of fabricating the cathode is also provided.
Claims41
An optoelectronic device, comprising:
- (a) an electron injection layer disposed over an organic operative layer of the optoelectronic device;
- (b) an organic buffer layer disposed over the electron injection layer;
- (c) a conducting layer disposed over the organic buffer layer;
- (d) a transparent conductive oxide layer disposed over the conducting layer.
An organic light emitting device, comprising:
- (a) a layer of LiF adapted to be physically and electrically connected to an organic operative layer of the organic light emitting device;
- (b) a layer of Al physically and electrically connected to the layer of LiF;
- (c) a layer of CuPc physically and electrically connected to the layer of Al;
- (d) a layer of MgAg physically and electrically connected to the layer of CuPc;
- (e) a layer of ITO physically and electrically connected to the layer of CuPc.
A device, comprising:
- (a) an anode disposed over a substrate;
- (b) an organic operative layer disposed over and electrically connected to the anode;
- (c) an electron injection layer physically and electrically connected to the organic operative layer;
- (d) an organic buffer layer physically and electrically connected to the electron injection layer;
- (e) a conductive layer physically and electrically connected to the organic buffer layer;
- (f) a transparent conductive oxide layer physically and electrically connected to the conductive layer.
A method of fabricating an optoelectronic device having a transparent cathode, comprising the steps of:
- (a) depositing an electron injection layer over an organic operative layer of the organic optoelectronic device;
- (b) depositing an organic buffer layer over the electron injection layer;
- (c) depositing a conductive layer over the organic buffer layer;
- (d) depositing a transparent conductive oxide layer over the conductive layer.
An organic optoelectronic device having a transparent cathode fabricated by the steps of:
- (a) depositing an electron injection layer over an organic operative layer of the organic optoelectronic device;
- (b) depositing an organic buffer layer over the electron injection layer;
- (c) depositing a conductive layer over the organic buffer layer;
- (d) depositing a transparent conductive oxide layer over the conductive layer.
Dependencies are inferred from the claim text.