A PROCESS FOR THE FABRICATION OF FLEXIBLE AND STRETCHABLE ELECTRONICS USING NANOMATERIALS AND PRINTING TECHNIQUES

Abstract

ABSTRACT A PROCESS FOR THE FABRICATION OF FLEXIBLE AND STRETCHABLE ELECTRONICS USING NANOMATERIALS AND PRINTING TECHNIQUES The present invention provides a process for the fabrication of flexible and stretchable electronics using nanomaterials and printing techniques. The process involves the preparation of a nanomaterial-based ink, which can be used to print electronic components on a flexible and stretchable substrate. The printed electronic components can include transistors, diodes, capacitors, and resistors. The process offers significant advantages over the current methods for fabricating flexible and stretchable electronics in terms of flexibility, stretchability, and scalability.

Specification

Description:FORM 2

THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003
Complete Specification
(See section 10 and rule 13)



1.Title of the Invention : A PROCESS FOR THE FABRICATION OF FLEXIBLE AND STRETCHABLE ELECTRONICS USING NANOMATERIALS AND PRINTING TECHNIQUES



2. Applicant Name : Dr.M.G.R Educational and Research
Institute

Nationality : Indian

Address : Periyar E.V.R High Road, Maduravoyal, Chennai 600095, Tamil Nadu


3. Preamble to the Description :

The following specification particularly describes the invention and the manner in which it is to be performed.


4. DESCRIPTION
FIELD OF THE INVENTION
The present invention relates to the field of electronics and more specifically, to the fabrication of flexible and stretchable electronics using nanomaterials and printing techniques.

BACKGROUND OF THE INVENTION
Flexible and stretchable electronics have attracted significant interest in recent years due to their potential applications in various fields such as healthcare, wearables, and robotics. However, the current methods for fabricating such electronics are limited in terms of flexibility, stretchability, and scalability.

SUMMARY OF THE INVENTION
The present invention provides a process for the fabrication of flexible and stretchable electronics using a combination of nanomaterials and printing techniques. The process involves the preparation of a nanomaterial-based ink, which can be used to print electronic components on a flexible and stretchable substrate.

DETAILED DESCRIPTION OF THE INVENTION
The present invention provides a process for the fabrication of flexible and stretchable electronics using nanomaterials and printing techniques. The process involves the following steps:
Step 1: Synthesis of Nanomaterials: The nanomaterials used in the process include carbon nanotubes, graphene, and silver nanowires. The nanomaterials are synthesized using standard methods and characterized using techniques such as transmission electron microscopy (TEM) and scanning electron microscopy (SEM).
Step 2: Dispersion of Nanomaterials: The synthesized nanomaterials are dispersed in a polymer matrix to form an ink. The polymer matrix can be polydimethylsiloxane (PDMS), polyurethane (PU), or polyvinyl alcohol (PVA). The nanomaterials are dispersed in the polymer matrix using techniques such as sonication or high-shear mixing.
Step 3: Printing of Nanomaterial Ink: The resulting nanomaterial ink is then printed onto a substrate using a printing technique such as inkjet printing, screen printing, or spray coating. The substrate can be any material, including plastic, paper, fabric, or glass.
Step 4: Sintering of Printed Patterns: The printed patterns are then sintered at a temperature of 200-300°C to form conductive pathways. The sintering process can be carried out using a thermal annealing process or a laser annealing process.
Step 5: Additional Layers: Additional layers of nanomaterial ink can be printed on top of the initial layer to form complex electronic circuits.
  







, Claims:CLAIMS
We Claim:
1. A process for the fabrication of flexible and stretchable electronics, comprising:
a) preparing a nanomaterial-based ink;
b) printing electronic components on a flexible and stretchable substrate using the nanomaterial-based ink; and
c) curing the printed electronic components on the substrate to form flexible and stretchable electronics.
2. The process of claim 1, wherein the nanomaterials used in the ink are selected from the group consisting of conductive polymers, carbon nanotubes, graphene, and metal nanoparticles.
3. The process of claim 1, wherein the substrate is made from a material selected from the group consisting of polydimethylsiloxane (PDMS), polyurethane (PU), and elastomeric polymers.
4. The process of claim 1, wherein the printed electronic components include transistors, diodes, capacitors, and resistors.
5. The process of claim 1, wherein the printing technique is selected from the group consisting of inkjet printing, screen printing, and roll-to-roll printing.
Dated this the 12th November 2024

Digitally signed
Senthil Kumar B
Agent for the applicant
IN/PA-1549

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