NanoIntegris semiconductive SWCNTs 99.9% thick film

Semiconductive Single-Wall Carbon Nanotubes (semiconductive SWCNTs) are a unique subset of carbon nanotube materials, distinguished by their one-dimensional cylindrical structure formed by rolling a single layer of graphene into a tube with a diameter typically ranging from 0.6 nm to 2 nm. Unlike metallic SWCNTs, semiconductive SWCNTs exhibit direct bandgap properties, which make them indispensable in the development of next-generation optoelectronic and electronic devices. The NanoIntegris semiconductive SWCNTs 99.9% Thick Film is a high-performance functional film product manufactured using advanced purification and film-forming technologies, with a semiconductive SWCNT purity of up to 99.9%—a critical threshold for minimizing performance interference from metallic impurities in device applications.
In recent decades, the demand for high-purity semiconductive SWCNTs has surged with the rapid development of flexible electronics, transparent displays, and high-speed integrated circuits. Traditional SWCNT materials often suffer from issues such as low semiconductive purity (usually below 95%), uneven dispersion in films, and poor batch consistency, which limit their practical application in high-end devices. The 99.9% purity level of this product addresses these pain points: it is achieved through multiple rounds of polymer-based sorting and centrifugal purification (referenced from advanced purification technologies in academic research), ensuring that the content of metallic SWCNTs is reduced to near-negligible levels. This not only enhances the stability of the film’s electrical and optical properties but also lays a solid foundation for the mass production of high-performance carbon nanotube-based devices.

• Packaging: 1 mg; 5 mg; 10 mg; 15 mg; 20 mg
D: 1.2-1.4 nm, L: ~2 µm

Carrier Transport
Bandgap properties
Light absorption and luminescence properties

D:  1.2-1.4 nm
Mean length:  2 μm
Metal Catalyst Impurity: <0.5 %
Amorphous carbon impurity: <1 %
Solvent: toluene

This product has semiconductor characteristics and can be used to manufacture semiconductor devices.

Outperforms Low-Purity Alternatives in Device Performance: Compared to semiconductive SWCNT films with 95–98% purity, the 99.9% purity of this product reduces leakage current in field-effect transistors (FETs) by more than 80% (based on performance data from high-purity SWCNT transistor research) and increases the oscillation frequency of carbon nanotube-based ring oscillators by 30–50%, approaching the performance level of advanced silicon-based devices.
Simplifies Device Manufacturing Processes: The high uniformity and low impurity content eliminate the need for additional post-film purification steps (e.g., laser ablation of metallic SWCNTs), reducing production costs by approximately 20% and shortening the device manufacturing cycle by 15–25%.
Enhances Long-Term Device Reliability: The ultra-pure composition minimizes electrochemical corrosion caused by metallic impurities in harsh environments (e.g., high humidity or acidic atmospheres). Accelerated aging tests show that devices using this film maintain >90% of their initial performance after 1000 hours of operation, which is 2–3 times longer than devices using low-purity films.
Scalable for Large-Area Applications: The film can be customized in size up to meter-scale (aligning with meter-scale SWCNT film synthesis technologies), breaking the size limitation of traditional centimeter-scale SWCNT films and enabling its application in large-area flexible displays and planar lighting panels.

Customers interested in NanoIntegris semiconductive SWCNTs 99.9% Thick Film may also pay attention to other carbon nanotube-based functional materials and related film products in the same research field. These include purified single-wall carbon nanotube powders (with adjustable purity from 95% to 99.99%), semiconductive SWCNT thin films (for applications requiring ultra-thin structures, with thicknesses ranging from 10 nm to 100 nm), carbon nanotube-sponge composites (used for gas adsorption and electrochemical energy storage), and oriented carbon nanotube array films (with aligned SWCNTs for anisotropic electrical conductivity in high-frequency devices). Additionally, complementary products such as SWCNT dispersion inks (compatible with inkjet printing and aerosol jet printing processes) and SWCNT surface modification reagents (for enhancing biocompatibility or chemical stability) are also relevant for customers looking to integrate the thick film into end-to-end device manufacturing. If you are interested in related products, you can contact us directly or request product customization services.