Graphene Membrane Self-Tensioning via Substrate Adhesion
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Solution Overview
Problem
Existing graphene membrane components require complex pretensioning processes and equipment to achieve a tensioned state, which increases production costs and complexity, while also limiting mechanical, electrical, and electromechanical properties.
Innovation Solution
A process for forming a graphene membrane component involves arranging a graphene membrane in a relaxed state on a supportive substrate with a cut-out, where a second portion of the membrane is tensioned through inherent adhesion, eliminating the need for pre-tensioning and specialized equipment, and maintaining permanent tension within an operating temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If complex pretensioning processes and equipment are used to achieve a tensioned state in graphene membrane, then the mechanical properties are improved, but the production costs and device complexity increase
Solution Approach 1:
The graphene membrane utilizes its own inherent adhesion properties to achieve self-tensioning. The membrane is arranged in a relaxed state on the supportive substrate with a cut-out, and the adhesion between the graphene and substrate automatically creates the tensioned state without requiring external pretensioning equipment or complex processes.
Solution Approach 2:
The patent removes the need for complex pretensioning equipment and processes by extracting only the essential elements: a simple supportive substrate with a cut-out. This simplifies the production process while maintaining the tensioned state of the graphene membrane.
2Strength
If complex pretensioning processes are used to tension the graphene membrane, then the electromechanical properties are improved, but the production expenses increase
Solution Approach 1:
The graphene membrane's inherent adhesion to the supportive substrate with cut-out creates self-tensioning, eliminating the need for expensive pretensioning equipment and complex manufacturing processes. This significantly reduces production expenses while maintaining improved electromechanical properties.
3Strength
If external tensioning equipment is used to achieve tensioned state, then the mechanical properties are enhanced, but the device complexity and production costs increase
Solution Approach 1:
The system uses the graphene membrane's own adhesion properties to create tension without any external tensioning equipment. The supportive substrate with a cut-out design allows the membrane to self-tension through its inherent adhesion, completely eliminating the need for complex external equipment.
Solution Approach 2:
The patent extracts and removes all external tensioning equipment from the system, relying solely on the graphene membrane's inherent adhesion to the supportive substrate with cut-out to achieve the desired tensioned state.
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 reduces production expenses, simplifies the formation process, and enhances mechanical, electrical, and electromechanical properties by maintaining permanent tension in the graphene membrane component.
Implementation Method 1
a second portion of the membrane is tensioned through inherent adhesion
Data Source
AI summary
A process for the formation of a graphene membrane component includes arranging a graphene membrane in a relaxed condition of the graphene membrane on a surface of a supportive substrate. The graphene membrane extends across a cut-out with an opening at the surface of the supportive substrate. The graphene membrane is moreover arranged so that a first portion of the graphene membrane is arranged on the surface of the supportive substrate and a second portion of the graphene membrane is arranged over the opening of the cut-out. The process further includes tensioning of the second portion of the graphene membrane, in order to convert the second portion of the graphene membrane to a tensioned condition, so that the second portion of the graphene membrane is permanently in the tensioned condition in an operating temperature range of the graphene membrane component.