Skip to Content

尊敬的客户：

目前国际形势复杂多变，关税政策尚不明朗，这可能对我们的产品价格产生一定影响。在此情况下，我们希望就订单事宜与您进行友好沟通。

基于当前的不确定性，如果您选择在此期间下单，我们将保留根据实际情况调整价格的权利。同时，我们也理解市场变化可能给您带来的困扰，因此如果在订单实际发货前因关税政策变动导致价格出现较大波动，默克将与您进行协商讨论并视情况对订单进行调整或取消。

关于应对近期政策变化的重要更新，请点击此处查看详情。

Merck
CN
All Photos(3)

Key Documents

View All Documentation

Safety Information

704148

Sigma-Aldrich

Carbon nanotube, single-walled

greener alternative

(6,5) chirality, ≥90% carbon basis (≥99% as carbon nanotubes), 0.78 nm average diameter, avg. no. of layers, 1

Synonym(s):

CHASM™, CNT, Signis® SG65, SWCNT, SWNT, Single wall carbon nanotube

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

CAS Number:
308068-56-6
MDL number:
MFCD00133992
UNSPSC Code:
12352103
To inquire about this product 704148, please contact your local Merck office or dealer. Contact Technical Service

description

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

Assay

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

form

powder (freeze-dried)

feature

avg. no. of layers 1

manufacturer/tradename

Signis® SG65

greener alternative product characteristics

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

surface area

≥700 m2/g

impurities

≤5 wt. % Moisture content

average diameter

0.78 nm

mp

3652-3697 °C (lit.)

Looking for similar products? Visit Product Comparison Guide

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.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Click here for more details.

Application

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][2][3][4][5][6][7]
Suitable for use in printed semiconductors, photovoltaic devices, sensors, medical research, etc.

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品
  • Specification Sheet

    • Choose from one of the most recent versions:

    Certificates of Analysis (COA)

    Lot/Batch Number
    MKBZ1725V
    MKBW7869V
    MKBS9734V
    MKBN4897V
    MKBJ6336V

    Don't see the Right Version?

    If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

    Search for a COA

    Already Own This Product?

    Find documentation for the products that you have recently purchased in the Document Library.

    Visit the Document Library

    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)
    Single-walled carbon nanotube biosensors using aptamers as molecular recognition elements
    So H, et al.
    Journal of the American Chemical Society, 127(34), 11906-11907 (2005)
    Charge transfer from carbon nanotubes to silicon in flexible carbon nanotube/silicon solar cells
    Li X, et al.
    Small, 13(48), 1702387-1702387 (2017)
    View All Related Papers

    Articles

    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