Modified electrodes using functional organic materials and electronic devices therefrom

• US 8,741,442 B2
• Filed: 04/15/2005
• Issued: 06/03/2014
• Est. Priority Date: 04/15/2005
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Cella, James Anthony, Heller, Christian Maria Anton, Liu, Jie
• Primary Examiner(s): YAMNITZKY, MARIE ROSE
• Application Number:
  US11/107,501
• Publication Number:
  US 20060234059A1
• Time in Patent Office: 3,336 Days
• Field of Search: 428/690, 428/917, 427/58, 427/66, 313502-509, 257/40, 257 88-103, 257E51001-E51052, 25230116-30135
• US Class Current: 428/500
• CPC Class Codes: H10K 50/171 Electron injection layers
• CPC Class Codes: H10K 85/141 comprising aliphatic or olefinic chains, e.g. poly N-vinylcarbazol, PVC or PTFE
• CPC Class Codes: H10K 85/631 Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]
• CPC Class Codes: Y10T 428/31507 Of polycarbonate
• CPC Class Codes: Y10T 428/31678 Of metal
• CPC Class Codes: Y10T 428/31692 Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31721 Of polyimide
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31855 Of addition polymer from unsaturated monomers

Abstract

A surface modified electrode, included in an electronic device comprises an electrode layer, and a functional organic material. The functional organic material comprises an amine-substituted polymeric material which is on the surface of and in contact with the electrode layer. Such surface modified electrodes are useful for producing electronic devices.

Claims

1. An electronic device comprising:

a first conductive layer;

a second conductive layer; and

an electroluminescent material layer disposed between the first and second conductive layers, wherein the first conductive layer is a cathode and the second conductive layer is an anode;

a hole injection enhancement layer disposed between the anode and the electroluminescent material layer;

a functional organic material comprising an amine-substituted polymeric material, wherein the functional organic material is disposed between the electroluminescent material layer and the cathode and modifies the cathode; and

wherein the amine-substituted polymeric material comprises a repeat unit of structure IV;

2. The electronic device of claim 1, wherein at least one of the first and second conductive layers is substantially transparent.

3. The electronic device of claim 1, wherein the electroluminescent material layer comprises at least one of a fluorescent dye or a phosphorescent dye.

4. The electronic device of claim 1, wherein the amine-substituted polymeric material is poly[(N,N-dibutylaminomethyl)styrene], poly[(N,N-dimethylaminomethyl)styrene], poly[(N,N-dipropylaminomethyl)styrene], poly[(N,N-ethylmethylaminomethyl)styrene], or poly[(N,N-diethylaminomethyl)styrene].