Unlocking Graphene’s full potential.
GTechPlasma - Graphene Technologies
NATO SPS Photo Contest, 2nd place in 'Technology in Action' category Project 'Advanced Electromagnetic Graphene-based Shields via Plasma Induced Synthesis' (AEGIS)
We produce graphene with 99% purity ready to be incorporated into our clients’ products using an innovative, scalable, versatile plasma technology.
Most commercial graphene is just expensive pencil lead
The lack of high-quality graphene derivatives has hindered the development of graphene-based technologies.
We produce customised high-quality graphene-based materials with enhanced properties using an innovative, versatile, cost-effective and environmentally friendly plasma technology.
Our solutions
Graphene
GTechPlasma is a supplier and development partner for high-purity graphene, producing material with up to 99% purity using a scalable plasma technology. We supply graphene for laboratory research, product development and advanced industrial applications, and can tailor material properties for integration into specific products and manufacturing processes.
Laboratory and R&D graphene materials
Conductive inks and paints
Functional coatings and polymer fillers
Advanced composites and EMI shielding materials
Sensors, membranes and energy-storage applications
Cleaner, Scalable Plasma Synthesis
Our patented, single-step plasma process produces high-quality graphene without relying on catalysts, harsh chemicals, vacuum or high-pressure conditions. Designed for scalable production, the technology provides a pathway from research quantities and material development towards industrial manufacturing.
Doped Graphene
GTechPlasma develops and produces customised doped graphene, using its plasma platform to tailor material properties for demanding research and industrial applications. Graphene functionalisation can improve electrical, chemical and surface performance, supporting the development of next-generation materials and devices.
Advanced sensors and detection systems
Conductive inks, coatings and electrodes
Fuel-cell components
Catalytic and electrochemical applications
High-performance composites and functional materials
Custom materials can be developed with customers according to application-specific requirements, including electrical performance, surface chemistry, dispersion, matrix compatibility and integration into sensors, coatings, conductive formulations and polymer composites.
For electromagnetic applications, doping provides an additional route to tailor dielectric response, polarisation and impedance matching. Learn how N-graphene is engineered for electromagnetic absorption
Graphene for Defence
Electromagnetic shielding, absorption & signature management
GTechPlasma develops high-purity, customised graphene-based materials for defence and security applications, with a focus on lightweight electromagnetic shielding, absorption and advanced composite systems. Our platform supports co-development, testing and qualification for demanding aerospace, naval, communications and protected-electronics environments.
EMI shielding and electromagnetic absorption
Lightweight composites for aerospace and naval platforms
Stealth-related coatings and multifunctional materials
Protected electronics, sensors and communication systems
Custom R&D, qualification batches and certified material supply
Explore the technology
Electromagnetic Shielding & Absorption
Understand how GTechPlasma engineers graphene and N-graphene materials to control reflection, transmission and absorption through tailored electrical, dielectric and, where applicable, magnetic response. Explore electromagnetic shielding & absorption
Radar-Absorbing Materials
Discover how plasma-synthesised graphene and N-graphene can be engineered for microwave absorption through impedance matching, controlled loss mechanisms and application-specific material architectures. Explore radar-absorbing materials
Innovation Services
GTechPlasma supports companies and research partners in developing customised graphene-based solutions, from early-stage material selection and formulation to application testing, optimisation and preparation for industrial scale-up. Our innovation services combine plasma technology, materials expertise and collaborative R&D to accelerate the development of high-performance products.
Customers can start with small material batches for evaluation, prototyping and qualification before progressing towards larger-volume production. This enables material properties, formulation, processing and application performance to be validated before industrial scale-up.
Custom graphene and nanomaterial development
Application-focused R&D and prototyping
Material formulation, testing and optimisation
Technology transfer and industrialisation support
Certification, qualification and co-development services
For applications such as conductive inks, coatings and polymer composites, selecting graphene involves more than choosing a purity grade. Electrical performance can depend on graphene properties, concentration, dispersion, binder or matrix compatibility and processing conditions. GTechPlasma works with customers on material selection, formulation, testing and optimisation to meet application-specific performance requirements.
News
GTechPlasma has been selected for investment by Portugal Ventures
GTechPlasma has been selected for investment by Portugal Ventures through the 5th edition of the Call INNOV-ID, an initiative that supports science- and technology-based startups with the potential to create global impact.
This Portuguese ‘black powder’ promises to revolutionise the ‘cat-and-mouse game’ of drone development
The war in Ukraine has accelerated the use of unmanned vehicles, but the next major military revolution may have originated in a laboratory in Portugal. Weighing virtually nothing and just one atom thick, this new graphene hybrid substance acts as a ‘sponge’ against enemy radar
From lab to sky: Portuguese graphene that hides jets and drones may transform defence
Portugal may be taking a decisive step in the global race for stealth, with a graphene-based radar-absorbing material that could render drones and warplanes almost undetectable.
About GTechPlasma
GTechPlasma was created as a spin-off from Instituto Superior Técnico (IST) from a simple but ambitious idea:
Graphene can only fulfil its potential when it is produced with the quality, consistency and flexibility required by real-world applications. Many commercial materials still fall short in purity and reproducibility, limiting their use in demanding industries. Our team set out to solve that challenge through plasma science.
Built on years of research in plasma physics and advanced materials in the labs of the university, GTechPlasma has developed a patented, single-step production platform capable of creating customised graphene-based materials with up to 99% purity. Our process is designed to avoid catalysts, harsh chemicals, vacuum and high-pressure conditions, while allowing material properties to be tailored for specific customer requirements.
Our multidisciplinary team brings together experienced plasma and materials physicists, engineering specialists, technology-transfer professionals and business specialists. The technology is supported by an international intellectual-property portfolio covering production equipment, processes and nanocomposite routes across Portugal, Europe, the United States and Japan.
Today, we work with partners to develop graphene solutions for both civilian and defence markets. Our focus includes conductive inks, coatings, sensors, membranes, energy storage, hydrogen technologies, advanced composites and electromagnetic shielding. By combining scientific expertise with application-led development, we help organisations move from material discovery to testing, qualification and industrial integration.
GTechPlasma is not simply producing graphene. We are building a platform for the next generation of high-performance, dual-use materials.
