What are the key material properties and performance characteristics of laser scribed graphene?

LSG typically exhibits sheet resistances in the range of a few to a few hundred ohms per square, with areal capacitances up to tens of mF/cm² depending on morphology and post-treatment. The material is usually highly porous (micro/mesoporous), with BET surface areas often exceeding 200–1000 m²/g, and maintains mechanical flexibility when produced on flexible polymer substrates.

What variants or sub-types of laser scribed graphene are commonly available?

Common variants include LSG on flexible polyimide films, LSG on rigid substrates (e.g., glass or silicon with polymer coatings), and heterostructures where LSG is combined with metal current collectors or polymer electrolytes. Some products are doped or functionalized (e.g., N-doped, S-doped, or decorated with metal/metal oxide nanoparticles) to tune electrochemical activity, wettability, or catalytic behavior for specific sensing or energy applications.

Which technical parameters should I focus on when selecting laser scribed graphene for sensors or electrodes?

For sensing and electrochemical electrodes, key specs include sheet resistance, BET surface area, pore size distribution, and electrochemical metrics such as areal/gravimetric capacitance and charge transfer resistance from EIS data. You should also review Raman (ID/IG ratio, 2D peak), XPS/EDS composition, and film thickness or mass loading to ensure compatibility with your target sensitivity, response time, and operating voltage window.

How do processing and laser parameters influence LSG quality, and how can I compare products from different suppliers?

Laser wavelength, fluence, pulse duration (CW vs pulsed), scan speed, and ambient atmosphere determine graphitization degree, defect density, and porosity; suppliers may report these indirectly via Raman spectra, conductivity, and SEM data. When comparing products, examine reported process parameters, morphology images, electrical/optical properties, and reproducibility metrics (e.g., lot-to-lot variation, uniformity across large areas) rather than nominal “graphene” labels alone.

What are typical lead times, customization options, and cost drivers for laser scribed graphene products?

Lead times are often 2–6 weeks for standard LSG films and can extend for custom patterns, substrate types, or functionalization (e.g., dopants, catalysts, patterned electrodes). Cost is mainly driven by substrate size and type, laser processing time (pattern area and resolution), degree of characterization (Raman, XPS, electrochemistry), and any post-processing such as encapsulation, metallization, or integration into device platforms.

How can I find, compare, and request quotes for laser scribed graphene on FindLight without creating an account?

On FindLight, you can navigate to Material Production → Specialty Materials → Laser Scribed Graphene, then use filters for substrate type, sheet resistance, thickness, functionalization, and form factor to narrow down products. Each listing shows key specs side by side; you can open multiple product pages in new tabs for detailed comparison and use the built-in “Request Quote” or contact form to send technical requirements directly to suppliers without registration.

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Laser Scribed Graphene for Industrial Applications

Laser Scribed Graphene (LSG)

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Sold by: Alfa Chemistry Ships from: United States

Specifications
Size:	1 cm^2
Molar Mass:	12 g/mol
Molecular Weight:	12.011 g/mol
Boiling Point:	Very high (USCG, 1999); Sublimes (NIOSH, 2016); 4200 °C; Sublimes at 3642 °C; Triple point (graphite-liquid-gas), 4492 °C at a pressure of 101.325 kPa; >4000 °C
Appearance:	Black film

Did You Know?

Laser-scribed graphene (LSG) is typically formed by photothermal reduction of polymer or oxide precursors using UV to mid-IR lasers, and can reach sheet resistances on the order of 10–30 Ω/sq at room temperature without any metal coating, provided the laser fluence and scan overlap are tightly controlled. Unlike CVD graphene, LSG is intrinsically 3D and porous, which dramatically increases its effective surface area (often >100 m²/g) and makes it highly attractive for supercapacitor electrodes and electrochemical sensors. A common misconception is that higher laser power always improves conductivity; in practice, excessive fluence can over-ablates carbon, disrupt percolation pathways, and increase resistance, so optimal power density and pulse duration are critical process parameters.

Related Resources

Frequently Asked Questions

Laser scribed graphene (LSG) is a porous, foam-like graphene network formed directly on a carbon-rich precursor (typically polyimide, lignin, or other polymers) by localized laser-induced pyrolysis. A focused laser beam converts the surface into few-layer, turbostratic graphene with high surface area and conductivity, without the need for wet chemistry or transfer steps.

Engineered Laser Scribed Graphene Materials

Laser Scribed Graphene is a porous, conductive carbon network produced by direct laser writing on polymeric or carbon-rich substrates. Localized laser heating converts the precursor surface into few-layer graphene with high surface area, tunable porosity, and patterned geometries. On FindLight, Laser Scribed Graphene products are offered as structured films, patterned electrodes, and functional surfaces for sensing, energy, and microelectronic applications.

Typical Specifications and Parameters

When evaluating Laser Scribed Graphene, engineers typically compare:

Substrate material: Polyimide (PI), polycarbonate (PC), or other carbon-rich polymers affecting mechanical flexibility and thermal stability.
Laser parameters: Wavelength (commonly 355–1064 nm), pulse duration (ns–fs), fluence, and scan speed, which control sheet resistance, porosity, and pattern resolution.
Electrical properties: Sheet resistance (Ω/sq), carrier mobility, and conductivity stability over thermal cycling or humidity exposure.
Structural properties: Layer count (few-layer vs. turbostratic), pore size distribution, surface roughness (Ra), and thickness per pass.
Pattern features: Line width, pitch, registration accuracy, minimum feature size, and total active area of Laser Scribed Graphene patterns.
Chemical functionality: Oxygen-containing groups, heteroatom doping (N, S, B), and surface treatment options for enhanced wettability or specific binding.

Use Cases and Application Domains

Laser Scribed Graphene is used for electrochemical and gas sensors, micro-supercapacitor electrodes, flexible and stretchable interconnects, transparent or semi-transparent heaters, and wettability-controlled surfaces. Its direct-write patterning makes Laser Scribed Graphene attractive for rapid prototyping of flexible electronics, lab-on-chip devices, and low-cost IoT sensor nodes.

Buyer Guidance on FindLight

On FindLight, you can compare Laser Scribed Graphene solutions by substrate type, sheet resistance, pattern density, and available processing window. Review datasheets for detailed laser scribing conditions, environmental stability data, and integration guidelines with adhesives, encapsulants, or printed traces. For non-standard geometries or custom functionalization of Laser Scribed Graphene, contact suppliers directly from the product page to request quotes or discuss process adaptation. No registration is required to initiate technical inquiries, obtain pricing, or evaluate lead times for your next development or production run.