Two-Dimensional Material Transfer to Woven Electronic Fabric Sensors
Solution Overview
Problem
Existing methods for forming apparatus with two-dimensional materials, such as graphene, face challenges in efficiently creating electrical connections and integrating them with woven electronic fabrics to function as sensors, often resulting in defects and reduced efficiency.
Innovation Solution
A method involving transferring a layer of two-dimensional material onto a woven electronic fabric with conductive and non-conductive strands, using capillary action and Van der Waals forces for attachment, and optionally functionalizing with colloidal quantum dots or nanoparticles, to create a sensor apparatus with improved electrical contact and reduced defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-dimensional material is transferred onto woven electronic fabric to form sensor, then electrical connections are improved and defects are reduced, but manufacturing complexity increases due to transfer process requirements
Solution Approach 1:
The patent uses liquid as an intermediary medium to transfer the two-dimensional material onto the woven electronic fabric. The liquid allows the material to be suspended and then transferred through capillary action into the fabric structure, achieving reliable electrical connections without direct mechanical contact or complex alignment processes.
Solution Approach 2:
The patent replaces traditional mechanical transfer methods with capillary action-driven transfer. Instead of using mechanical pressing, alignment, or bonding tools, the system uses the natural capillary forces of the liquid and fabric structure to automatically position and attach the two-dimensional material, simplifying the manufacturing process while improving connection quality.
2Productivity
If two-dimensional material is transferred from liquid surface onto woven fabric, then material utilization efficiency is improved, but transfer process complexity increases
Solution Approach 1:
The system uses self-service transfer where the two-dimensional material automatically transfers from the liquid surface to the woven fabric through capillary action without external intervention. The liquid and fabric structure work together to automatically position and attach the material, eliminating the need for complex external transfer mechanisms while improving material utilization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the formation of efficient sensor devices with enhanced electrical connections and reduced defects, allowing for effective sensing of various parameters like chemicals, radiation, or temperature without the need for patterning the two-dimensional material, thereby improving the apparatus's functionality and reliability.
Implementation Method 1
the two dimensional material may be transferred to the woven electronic fabric by capillary action
Implementation Method 2
using capillary action and Van der Waals forces for attachment
Data Source
Figure 1~2
Figure 3A~3D
Figure 4A~4B
AI summary
A method and apparatus, the method comprising: transferring a layer of two dimensional material from a liquid surface onto a layer of woven electronic fabric; wherein the woven electronic fabric comprises a plurality of conductive strands and a plurality of non conductive strands such that the layer of two dimensional material and woven electronic fabric form a sensor.