Process for preparing nanoparticle embedded electronic device

Patent metadata

Field	Value
Publication number	US-9349976-B2
Application number	US-201314233813-A
Country	US
Kind code	B2
Filing date	Mar 4, 2013
Priority date	Jul 13, 2012
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

The present invention relates to a process for preparing an electronic device comprising at least one layer selected from the group consisting of a upper electrode layer, a lower electrode layer, an organic layer and an inorganic layer, which comprises a step of introducing a nanoparticle layer or a nano/micro structure layer by adhering charged nanoparticles, before, after or during forming the layer.

First claim

What is claimed is:

1. A process for preparing an electronic device comprising at least one functional organic layer on a substrate, the process comprising:
(1) locating the substrate with a first functional organic layer on an electrode in a reactor:
(2) introducing a nanoparticle layer or a nano or micro structure layer by adhering charged nanoparticles in a form of aerosol onto the first functional organic layer by applying a voltage to the electrode while introducing the charged nanoparticles into the reactor; and
(3) further forming a second organic layer or an inorganic layer over the first functional organic layer on which the charged nanoparticles are adhered so that the nanoparticle layer or a nano or micro structure layer is between the first functional organic layer and the second organic layer or the inorganic layer.

2. The process for preparing an electronic device according to claim 1 , wherein voltage applied to the electrode has opposite polarity with the charged nanoparticles, and has an intensity of 0.5 to 8 kV.

3. The process for preparing an electronic device according to claim 1 , wherein the charged nanoparticles comprise latex, polymer particles, oxide particles, metal particles, metal oxide particles, or a mixture thereof.

4. The process for preparing an electronic device according to claim 1 , wherein the charged nanoparticles have a size from 1 to 300 nm.

5. The process for preparing an electronic device according to claim 1 , wherein the electronic device is a compound semiconductor light emitting diode (LED), an inorganic solar cell containing silicon or compound semiconductor, an organic light emitting diode (OLED), an organic solar cell (organic photovoltaic), a non-volatile memory cell or a tandem solar cell.

6. The process for preparing an electronic device according to claim 5 , wherein the electronic device is an organic light emitting diode, and the charged nanoparticles are introduced on the organic layer as a hole transfer layer.

7. An electronic device prepared by the method of claim 1 .

Assignees

• Snu R&Db Foundation
• Global Frontier Ct For Multiscale Energy Systems
• Global Frontier Ct For Multiscale Energy System

Inventors

• Kim Changsoon
• Kim Hyungchae
• Lee Jongcheon
• Han Kyuhee
• Sung Hyangki
• Jung Kinam
• Choi Hoseop
• Ha Kyungyeon
• Choi Man Soo

Classifications

• H10P95/80

  Electrical treatments, e.g. for electroforming · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H10K30/50

  Photovoltaic [PV] devices · CPC title

• H10K50/155

  comprising dopants · CPC title

• H10K30/35 Primary

  comprising inorganic nanostructures, e.g. CdSe nanoparticles · CPC title