Carbon nanotubes (CNTs) are emerging as a new versatile platform technology leading the next wave of material transformation. Legacy materials are reaching their limits, driven by demand for higher performance and energy efficiency. To continue upscaling technology products towards the next targets, the transition to advanced materials like CNTs is inevitable. What are the next most promising carbon nanotube applications, and which industries will they transform? Find out in this article.
Carbon nanotubes were discovered over three decades ago, but only recent advances in their synthesis, control, and scalable manufacturing have unlocked the immense potential of this unique material. CNTs are already taking a transformative role in advanced chip manufacturing in the semiconductor industry, opening pathways beyond constraints of legacy materials.
As more industries demand higher performance and energy efficiency, CNTs are emerging as a foundational material for next-generation technologies. This shift marks the beginning of what can be described as the “Carbon Age,” in which carbon nanomaterials will shape the next era of technology. In this article, we will explore some of the next most promising applications of carbon nanotubes and the industrial impact they will bring.
“Carbon nanotubes combine properties that are rarely achieved in a single material: high electrical conductivity, mechanical strength, optical transparency, and flexibility. Canatu has demonstrated that when these properties are engineered at scale using controlled processes, CNTs move from a promising nanomaterial to a versatile and reliable industrial platform technology,” stated Ilkka Varjos, CTO at Canatu
Current carbon nanotube applications
Advances in synthesis, purification, and scalable manufacturing have enabled the production of CNTs with consistent quality and their integration into existing production processes.
As a result, today CNTs are already delivering value across a wide range of applications:
- In automotive and mobility, CNTs are used in transparent heaters for Advanced Driver Assistance System (ADAS) sensors and camera systems, as well as in lightweight components that improve energy efficiency and user experience.
- In semiconductors, CNT membranes have been used as debris filters, protecting the photomask from EUV light source particles during the inspection process.
- In electronics, transparent conductive films made of CNTs provide a flexible and more durable alternative to traditional materials, supporting the development of next-generation displays, sensors, and wearables.
- In energy systems, CNTs enhance batteries, fuel cells, and supercapacitors by improving conductivity and structural integrity, enabling faster charging and longer lifetimes.
As industries continue to push performance limits, carbon nanotubes are evolving from a niche enhancement into a foundational material platform. The next wave of applications is now forming around three high-impact areas: Microsystems, Electrochemical Sensing, and Emerging Frontiers, where CNTs unlock capabilities that go beyond incremental improvement, unlocking unprecedented performance and new capabilities.
1. Microsystems: enabling post-silicon electronics with CNTs
Microsystems are pushing toward smaller dimensions, better energy efficiency, and tighter performance targets. They are entering a phase in which further progress is increasingly constrained by the limits of traditional materials across electrical, thermal, and mechanical functions. As dimensions shrink and performance demands intensify, conventional metals and silicon-based materials struggle with rising resistivity, heat generation, reliability issues, and limited mechanical resilience.
CNTs offer a viable post‑silicon path to extend Moore’s law scaling and enable More‑than‑Moore functionality. They offer near-ballistic electron transport over short distances, meaning electrons can move with far less scattering compared to copper or silicon. In practical terms, this enables lower power consumption and higher performance in applications such as interconnects in advanced chips or electrodes in MEMS sensors, where legacy materials begin to suffer from heat generation, energy loss, and reliability limitations.
Another unique advantage of CNTs is that they can function as both metallic conductors and semiconductors, depending on their structure. This opens a path toward using a single material platform to serve both conductive and semiconducting roles, such as interconnects and transistor channels, potentially simplifying material stacks and enabling tighter integration in monolithic 3D and post silicon microsystem architectures. Combined with their extremely high current-carrying capacity, strong thermal stability, and mechanical resilience, CNTs are well-suited for next-generation microsystems, including advanced chip concepts, MEMS sensors, and flexible or hybrid devices.
As this transition unfolds, the competitive edge in microsystems will increasingly depend on how effectively CNTs can be embedded into existing microsystem stacks and manufacturing processes. Applications of carbon nanotubes in this domain have the potential to reshape how performance, efficiency, and functionality are co-optimised in microsystems, extending the trajectory of microsystem design well beyond the limits of today’s architectures.
2. Electrochemical sensing: CNT-powered sensing for wearables, diagnostics, agriculture, and environmental monitoring
Electrochemical sensing plays a critical role in understanding human health, process environments, and natural ecosystems. The growing need for real-time data, portable diagnostics, and continuous monitoring requires sensors that are more sensitive, stable, and cost-efficient. Carbon nanotubes offer a direct path forward with their exceptionally vast surface area, high conductivity, and functional tunability, pushing sensing performance into domains previously considered impractical.
CNTs’ responsiveness at extremely low analyte concentrations makes them ideal for next‑generation health platforms focused on early detection, continuous biomarker tracking, and personalised monitoring. This positions electrochemical sensors built on CNTs as a foundational technology for the future of human‑centric diagnostics. In healthcare and wearables, electrodes made of CNTs offer exceptional sensitivity, mechanical resilience, and miniaturisation demands of modern biosensing systems.
These sensing capabilities translate across a wide range of application domains, including healthcare and wearables, environmental monitoring, and industrial analytics. In human-centric use cases such as health and wearable platforms, the combination of high sensitivity, reliability, and continuous operation enables new approaches to diagnostics and long-term monitoring, while the same underlying performance benefits support robust measurement in demanding environments.
Electrochemical sensing is emerging as one of the most promising CNT applications, compressing the time from “sample” to “decision” and enabling new diagnostic, monitoring, and analytical solutions across diverse real-world environments.
3. Emerging frontiers: CNT architectures for novel applications in quantum, photonic, defence, and space industries
The exceptional properties of carbon nanotubes have the potential to unlock new opportunities in fields where performance boundaries are continually pushed. Their combination of nanoscale precision, tunability, and unique optical characteristics makes them a promising platform for advanced technologies and next-generation materials, even in such fields as quantum computing and photonics.
In demanding environments, like space, the combination of high strength, low weight, and condition resilience positions carbon nanotubes as an attractive option for enhancing performance, durability, and functionality across a wide range of systems and applications.
Within this technology theme, carbon nanotubes serve as a foundation for future scientific and technological breakthroughs.
How carbon nanotubes are shaping the future
Across these three areas of CNT applications, the common thread is that carbon nanotubes deliver capabilities conventional materials struggle to match. This covers, for example, post-silicon electronics scaling, ultra-sensitive electrochemical detection, as well as quantum and space-grade architectures.
“What makes CNTs truly transformative is not just their performance, but their versatility across applications. The same material platform can be tuned for transparent conductive films in automotive interfaces, highly sensitive electrodes for biosensing, or debris filters in chip manufacturing. This level of adaptability is what enables CNTs to drive the transition toward more energy-efficient and high-performance systems across industries,” added Ilkka Varjos, CTO at Canatu
The versatility of carbon nanotubes stems from material-level control and manufacturability, rather than from isolated use cases. Unlike conventional CNTs that are typically produced as bulk powders with limited control over structure or integration, advanced CNT materials are designed for uniformity, purity, and compatibility with industrial processes. Canatu’s patented Dry Deposition™ process enables the direct formation of pristine CNT networks without solvents or complex transfer steps. This provides precise control over optical, electrical, and mechanical properties, allowing a single CNT platform to support a wide range of end uses across electronics, sensing, and microsystems.
As CNT technologies move from individual applications toward broader adoption, the focus shifts from component performance to scalable integration. Achieving this transition requires not only material capability, but also process compatibility, design rules, and manufacturing readiness. The Carbon Age programme is designed to address this challenge by bringing advanced CNT materials into standard manufacturing flows and developing shared design and process frameworks together with industry and research partners. The goal is to accelerate the path from laboratory innovation to scalable fabrication and commercial deployment.
For organisations aiming to shape the next era of technology, the Carbon Age program offers an opportunity to engage early: access to the Canatu CNT platform, collaboration within a growing ecosystem of leading OEMs and research partners, and support for joint development and scaling. If you are interested in exploring how CNT-based solutions could enable the next level of performance within your technology domain, we invite you to engage with us to co-design, develop, and scale, using carbon nanotubes as a platform for progress.