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Carbon nanotube, single-walled

greener alternative

(6,5) chirality, ≥90% carbon basis (≥99% as carbon nanotubes), 0.78 nm average diameter

SWCNT, SWNT, CHASM, CNT, Signis SG65, Single wall carbon nanotube
CAS Number:

Quality Level


G/D Ratio: ≥20 (Raman 633 nm)
Median length: 1 μm


≥90% carbon basis (≥99% as carbon nanotubes)


powder (freeze-dried)


Signis® SG65

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.


≤5 wt. % Moisture content

average diameter

0.78 nm

surface area

spec. surface area ≥700 m2/g


3652-3697 °C (lit.)


1.7-1.9 g/cm3 at 25 °C (lit.)

bulk density

0.1 g/cm3

greener alternative category


SMILES string


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General description

Produced using CHASM′s patented CoMoCAT synthesis technology, Signis® SG65 is a single-wall carbon nanotube (CNT) product uniquely enriched in semiconducting tubes, with (6,5) chirality being most abundant. Approximately 95% of the CNTs in SG65 are semiconducting with approximately 41% of those tubes being (6,5) chirality.


Suitable for use in printed semiconductors, photovoltaic devices, sensors, medical research, etc.
Carbon nanotube, single-walled (SWNT) belongs to the class of carbonaceous materials with excellent physiochemical, thermo-mechanical and electrochemical properties. This material can be used in a variety of sustainable energy applications such as solar cells, photocatalysis, thin film conductors, field effect transistors (FETs), biosensor, gas sensor, supercapacitor and nanomechanical resonators.


1 g in glass bottle
250 mg in glass bottle

Preparation Note

CoMoCAT Catalytic Chemical Vapor Deposition (CVD) Method

Legal Information

CHASM is a trademark of Chasm Advanced Materials
CoMoCAT is a trademark of Chasm Advanced Materials
Signis is a registered trademark of Chasm Advanced Materials

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

More Documents

Quotes and Ordering

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. How are these single-walled carbon nanotubes produced?

    These single-walled carbon nanotubes are produced by CoMoCAT® Catalytic Chemical Vapor Deposition (CVD).  Processing is done to remove amorphous carbon, and HF (aq) is used to remove the silica support and some metals.

  6. Are these single-walled carbon nanotubes surface modified?

    No, these single-walled carbon nanotubes do not have surface modifications.

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Performance dependence of SWCNT/n-silicon hybrid solar cells on the charge carrier concentration in silicon substrates
Saini V, et al.
Royal Society of Chemistry Advances, 5(1), 621-627 (2015)
Myung-Soo Choi et al.
Nanomaterials (Basel, Switzerland), 10(2) (2020-02-28)
A hybrid film consisting of zinc oxide nanoparticles (ZnO NPs) and carbon nanotubes (CNTs) is formed on a glass substrate using a simple and swift spin coating process for the use in ultraviolet photodetectors (UV PDs). The incorporation of various
Single-walled carbon nanotubes as ultrahigh frequency nanomechanical resonators
Li C and Chou T
Physical Review. B, Condensed Matter and Materials Physics, 68(7), 073405-073405 (2003)
Charge transfer from carbon nanotubes to silicon in flexible carbon nanotube/silicon solar cells
Li X, et al.
Small, 13(48), 1702387-1702387 (2017)
Single-walled carbon nanotube (SWNT)-carboxymethylcellulose (CMC) dispersions in aqueous solution and electronic transport properties when dried as thin film conductors
Young BR and Aminayi P
Journal of Dispersion Science and Technology, 39(11), 1613-1626 (2018)


CoMoCAT Single-wall Carbon Nanotubes

The CoMoCAT® method of single-walled carbon nanotube (SWNT) synthesis yields high purity SWNTs with specific chiralities and narrow distributions of tube diameters.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service