Last updated: 2026-01
Material Identity
- Chemical name: Graphene (CVD-grown)
- Material class: two-dimensional sp2-bonded carbon film
- Structure: continuous graphene layer grown on metal substrate
- CAS number: not assigned (process-grown carbon material)
- Physical form: thin film; typically supplied on substrate or transferred to another surface
- What it is not: not graphene oxide, not reduced graphene oxide, not graphene nanoplatelet powder
Activation & Trigger Conditions
- Trigger: electronic transport through continuous graphene lattice
- Energy domain: delocalized π-electron system in sp2 carbon network
- Absent trigger: discontinuities or cracks interrupt electrical pathways
- Insufficient condition: poor growth uniformity or defective transfer reduces functionality
- Excess condition: aggressive handling or processing damages the graphene film
Functional Role
- Provides continuous graphene coverage over large areas
- Enables electrical conductivity through an uninterrupted carbon lattice
- Acts as a functional surface layer rather than a bulk filler
- Supports surface-level electronic, thermal, or barrier functions
Application Windows
- Compatible systems: electronic substrates, flexible films, optical and functional surfaces
- Integration mode: on-substrate use or transfer to target surface
- Processing notes: cleanliness, transfer method, and substrate compatibility strongly affect outcomes
Limitations & Failure Modes
- Transfer defects → cracks or tears → loss of electrical continuity
- Surface contamination → increased resistance → degraded electronic behavior
- Mechanical stress → film rupture → localized performance failure
Alternatives & Trade-offs
- Graphene nanoplatelets: bulk composite use but no continuous film
- Reduced graphene oxide films: easier processing but lower structural order
- Conductive coatings: simpler deposition but different electronic structure
When to Use
- When large-area, continuous graphene coverage is required
- When surface conductivity is needed without bulk fillers
- When two-dimensional electronic properties are important
- When substrate-based integration is feasible
FAQ
Is CVD graphene the same as graphene powder?
No. CVD graphene is a continuous film, while graphene powders are particulate materials.
Does CVD graphene always show high conductivity?
Conductivity depends on film continuity, defect density, and transfer quality.
Why does performance vary between samples?
Variation arises from growth parameters, substrate quality, and handling during transfer.
Data
No numerical values are listed. Sheet resistance, layer count, defect density, and uniformity are process- and grade-specific and must be verified experimentally.
Sources
Peer-reviewed literature on chemical vapor deposition graphene and supplier technical documentation.