Thin Metal Coating on Graphene Stanene Composites
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Solution Overview
Problem
Conventional plating methods for thin metal coatings on graphene or stanene substrates face issues with consistency, uniformity, and environmental pollution, and are costly.
Innovation Solution
The use of physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods to deposit thin metal layers on graphene or stanene layers applied to porous metal foam substrates, followed by compression to enhance thermal and electrical properties, and the application of additional metal layers between graphene or stanene layers to prevent graphite formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional plating methods are used for thin metal coatings, then the process is simple and direct, but consistency, uniformity, and environmental friendliness deteriorate while cost increases
Solution Approach 1:
The patent replaces conventional wet plating methods with physical vapor deposition (PVD) and chemical vapor deposition (CVD) processes. This substitution eliminates the need for liquid chemicals and mechanical contact, providing uniform metal coatings through vapor-phase deposition that ensures consistent thickness and composition across the substrate surface, directly resolving the contradiction between manufacturing precision and ease of manufacture
Solution Approach 2:
The patent employs vacuum environments and controlled atmospheres during PVD and CVD processes to prevent oxidation and contamination of the metal coatings. This creates a clean, controlled deposition environment that ensures uniform and consistent coating quality while reducing environmental pollution from conventional plating chemicals, thereby improving manufacturing precision without sacrificing process simplicity
2Reliability
If thin metal coatings are applied to graphene or stanene layers, then thermal and electrical conductivity improve, but the coating process becomes more complex and costly
Solution Approach 1:
The patent utilizes vapor deposition parameters (temperature, pressure, deposition rate) to precisely control the thickness and composition of metal coatings on graphene or stanene layers. By optimizing these parameters, the process achieves high thermal and electrical conductivity with thin, uniform coatings, improving reliability while maintaining cost-effectiveness through reduced material usage and simplified processing
Solution Approach 2:
The patent creates composite structures by depositing thin metal layers onto graphene or stanene substrates, combining the superior thermal and electrical properties of these two-dimensional materials with the conductive characteristics of metal coatings. This composite approach enhances overall performance while the vapor deposition method keeps the manufacturing process relatively simple and cost-effective compared to conventional plating
3Quantity of substance
If multiple layers are deposited to prevent graphite formation, then material capacity increases, but the manufacturing process becomes more complex
Solution Approach 1:
The patent employs intermediate metal layers as barrier coatings between graphene or stanene layers during the deposition process. This preliminary action prevents direct contact between carbon layers that would form graphite, while the vapor deposition method automates the multilayer construction, reducing operational complexity despite the increased number of layers and maintaining efficient 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 results in improved thermal and electrical conductivity, increased capacity, and reduced environmental impact by providing a more efficient and uniform thin metal coating process.
Implementation Method 1
The use of physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods to deposit thin metal layers
Implementation Method 2
The use of physical vapor deposition (PVD) and chemical vapor deposition (CVD) methods to deposit thin metal layers
Implementation Method 3
followed by compression to increase heat and electrical transfer properties
Data Source
AI summary
Embodiments of the present technology include thin coating methods for graphene and/or stanene metal composites. An example composite is created by depositing a material including any of graphene and stanene onto a porous metal foam substrate, compressing the porous metal foam the deposited material to form a graphene-metal composite, and depositing a thin metal coating on an outer surface of the porous metal foam substrate or an outer surface of deposited material using any of physical vapor deposition and chemical vapor deposition.