US 2016/0260900 A1 · BLADE COATING ON NANOGROOVED SUBSTRATES YIELDING ALIGNED THIN FILMS OF HIGH MOBILITY SEMICONDUCTING POLYMERS

Abstract

A method for enhancing charge carrier mobility of a field-effect transistor device. The method comprises generating uniaxial nanogrooves on a substrate and blade coating a solution comprising a semiconducting polymer onto the substrate. The polymer solution is spread onto the substrate in a direction parallel to the nanogrooves and a main-chain axis of the polymer is parallel to the nanogrooves. The semiconducting polymer can be then annealed, so that a polymer film is formed which is layered on top of the substrate, with polymer chains aligned parallel to a direction of charge carrier movement.

Claims20

Dependent claims

A method for enhancing charge carrier mobility of a field-effect transistor device comprising a charge carrying semiconducting polymer composition, the method comprising:

generating uniaxial nanogrooves on a substrate;
and
blade coating a solution comprising a semiconducting polymer onto the substrate, wherein the polymer solution is spread onto the substrate in a direction parallel to the nanogrooves and a main-chain axis of the polymer is parallel to the nanogrooves;
so that polymer is layered on top of the substrate and aligned parallel to a direction of the nanogrooves, thereby enhancing charge carrier mobility of the semiconducting polymer composition in the field-effect transistor device.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/058,994Filed 2 Mar 2016

Priority

2 Mar 2015

Published

8 Sep 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H10K 71/12
Deposition of organic active material: using liquid deposition, e.g. spin coating
H10K 71/191
Deposition of organic active material: characterised by provisions for the orientation or alignment of the layer to be deposited
H10K 10/484
Insulated gate field-effect transistors [IGFETs]: characterised by the channel regions
H10K 71/40
Manufacture or treatment specially adapted for the organic devices covered by this subclass: thermal treatment, e.g. annealing in the presence of…

Blade coating on nanogrooved substrates yielding aligned thin films of high mobility semiconducting polymers

Life of this patent

Blade coating on nanogrooved substrates yielding aligned thin films of high mobility semiconducting polymers

Life of this patent

Abstract

Claims20