# US 8,465,850 B2 · Method for the application of active materials onto a surface and devices made with such methods

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- Number: US 8,465,850 B2
- Document ID: US8465850B2
- Status: Granted
- Kind: B2
- Application number: 13/080,317
- Filed: 2011-04-05
- Published: 2011-07-28
- Granted: 2013-06-18
- Earliest claimed: 2003-09-24
- Assignees: E. I. Du Pont de Nemours and Company
- Applicants: Viacheslav A. Petrov; Daniel David Lecloux
- Inventors: Viacheslav A. Petrov; Daniel David Lecloux
- Web page: https://patentgrep.com/patent/US8465850B2

## CPC

- H10K 71/15: characterised by the solvent used
- H10K 85/311: {Phthalocyanine}
- H10K 85/324: {comprising aluminium, e.g. Alq3}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

The invention provides methods for the application of active materials onto active surfaces useful in organic electronic devices. The methods of the invention include selecting a liquid composition including an active material and a suitable liquid medium whereby when the liquid composition is deposited on the desired active surface it has no greater than about a 40° contact angle; treating the active surface to raise its surface tension before the deposition of a liquid composition containing the desired active material is deposited thereon; and combination thereof. The invention also provides organic electronic devices having at least two active layers, wherein at least one active layer comprises an active material that was deposited using at least one practice of the method of the invention.

## Claims

### Claim 1

An organic electronic device comprising at least one first active layer and at least one second active layer comprising at least one active material, wherein
the first active layer comprises a fluorinated material, and
the active material in the second active layer is deposited on the first active layer from a liquid composition comprising at least one fluorinated compound; and wherein
wherein the first active layer comprises a material selected from polyaniline combined with a fluorinated polymeric sulfonic acid, a polythiophene combined with a fluorinated sulfonic acid, a poly(dioxythiophene) combined with a fluorinated polymeric sulfonic acid, and mixtures thereof.