Self-assembled monolayer for electrode modification and device comprising such self-assembled monolayer

Patent metadata

Field	Value
Publication number	US-12376485-B2
Application number	US-202418649840-A
Country	US
Kind code	B2
Filing date	Apr 29, 2024
Priority date	Dec 4, 2018
Publication date	Jul 29, 2025
Grant date	Jul 29, 2025

Abstract

The present application relates to a self-assembled monolayer suitable for the modification of electrodes comprised in electronic devices as well as to such electronic devices. The present application also relates to a method for depositing such self-assembled monolayer onto an electrode as well as to the manufacturing of the corresponding devices.

First claim

What is claimed is:

1. A method of producing an organic electronic device comprising an electrode, a self-assembled monolayer on said electrode and an organic semiconducting layer on said self-assembled monolayer,
said method comprising the steps of
(a) providing said electrode;
(b) depositing onto said electrode a formulation comprising a compound of formula (I)
R 1 —SiX 3   (1)

and an alcohol of formula R 2 —OH,
with
R 1 being a group of the following formula (II-b)

wherein e is at each occurrence independently an integer of at least 1 and of at most 5, and R A is F,
R 2 being an alkyl group having from 1 to 10 carbon atoms; and
X being Cl,
to obtain said self-assembled monolayer; and
(c) depositing onto said self-assembled monolayer an organic semiconducting material to obtain said organic semiconducting layer.

2. The method according to claim 1 , wherein the self-assembled monolayer is formed by depositing the formulation comprising the compound of formula (I) and the alcohol of formula R 2 —OH onto the electrode.

3. The method according to claim 1 , wherein e is 5.

4. The method according to claim 1 , wherein the compound of formula (I) is selected from the group consisting of the following formulae (I-1) to (I-6)

wherein X is Cl.

5. The method according to claim 1 , characterized in that the electrode comprises a metal or an electrically conductive metal oxide or a blend thereof.

6. The method according to claim 1 , characterized in that the electrode comprises a metal selected from the group consisting of chromium, molybdenum, tungsten, cobalt, rhodium, iridium, nickel, palladium, platinum, gold, silver, and any blend of any of these.

7. The method according to claim 1 , characterized in that the electrode comprises a metal selected from the group consisting of chromium, molybdenum and tungsten.

8. The method according to claim 1 , characterized in that the electrode comprises an electrically conductive metal oxide selected from the group consisting of indium tin oxide (ITO), molybdenum oxide, tin oxide, and any blend of any of these.

9. The method according to claim 1 , wherein the electrode is an indium tin oxide electrode.

10. The method according to claim 1 , wherein R 2 is an alkyl having from 1 to 5 carbon atoms.

11. The method according to claim 1 , wherein said organic electronic device is selected from the group consisting of organic field effect transistors (OFET), organic thin film transistors (OTFT), organic light emitting diodes (OLED), organic light emitting transistors (OLET), organic photovoltaic devices (OPV), organic photodetectors (OPD), organic solar cells, laser diodes, Schottky diodes, photoconductors and photodetectors.

12. The method according to claim 1 , wherein said organic electronic device is an organic field effect transistor (OFET) or an organic thin film transistor (OTFT).

13. The method according to claim 1 , wherein R 2 is iso-propyl.

Assignees

• Merck Patent Gmbh

Inventors

• Sparrowe David
• Wang Changsheng
• Mitchell William

Classifications

• H10K50/805

  Electrodes · CPC title

• H10K2102/103

  comprising indium oxides, e.g. ITO · CPC title

• H10K71/12

  using liquid deposition, e.g. spin coating · CPC title

• H10K30/82

  Transparent electrodes, e.g. indium tin oxide [ITO] electrodes · CPC title

• H10K10/82

  Electrodes · CPC title