DLC Probes

Super Sharp Diamond-Like Carbon (DLC) Probes

K-Tek Nanotechnolgy’s line of Super Sharp Diamond-Like Carbon (DLC) probes are extremely useful for obtaining high-resolution on objects only several nanometers in size. This exclusive series gives our customers superior imaging quality, and a probe with superior material durability. Super Sharp DLC probes are rigorously tested to ensure that each batch performs under strict testing situations.


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Resonant Frequency kHz
Force Constant Nm
± 10μm
± 5μm
± 0.5μm
NSG01_DLC125 30 2 87 150 230 1.45 5.1 15.1
NSG10_DLC95 30 2 140 240 390 3.1 11.8 37.6

Material Single Crystal Silicon, N-type, 0.01-0.025 Ω-cm, Antimony doped
Cantilever Geometry Rectangular
Number of Cantilevers 1
Back Side Coating Au
Standard Chip Size 3.4mm x 1.6mm x 0.3mm
Tip Specifications
Material Diamond-like Carbon
Working Length >20 nm
Tip Geometry Tetrahedral, the last 500 nm from tip apex is cylindrical
Tip Height 14 – 16 μm
Tip Aspect Ratio 3:1 – 7:1
Tip Offset (Setback) 5 – 20 μm
Tip Front Angle 10 ± 2°
Tip Back Angle 30 ± 2°
Tip Side Angle (half) 18 ± 2°
Tip Cone Angle 7 – 10°
Tip Curvature Radius (Nom) 1 – 3 nm

Product Details

Super sharp diamond-like carbon (DLC) tips* with typical curvature radius 1nm are extremely useful for obtaining high resolution on objects with sizes of several nanometers. DLC tips have very long lifetime due to the high material durability.

To guarantee 20nm working length of DLC tips TEM is used. 10% from total number of probes in the batch are selected for testing. At least 80% of those probes should have the only DLC tip which lengh is exceeded by 20nm others DLC tips on the same probe. In this case the whole batch is considered as passed the TEM test. On the surfaces with roughness bigger than 20nm double images are possible. 

* – DLC tips can be grown on any other probe series by request

SPM image of DNA deposited on HOPG is obtained by DLC tip.
DNA size (2-2.5nm) is nearly equal to the real size (~2nm).
Standard probes provide DNA imaging with size about 10-15nm.


SPM image of linearized plasmid DNA deposited on the modified HOPG

Obtained by DLC tip on the Solver P47 BIO (NT-MDT Co.) by Dr.Dmitry Klinov, Institut of Bioorganic Chemistry, Russian Academy of Science.

* “Dmitry Klinov and Sergei Magonov, True molecular resolution in tapping-mode atomic force microscopy with high-resolution probes, Applied physics letters, 84 (14), (2004) 2697-2699.”

Additional Information

Product Yield
Guaranteed product yield is better than 90%
Probes are packaged in GelPak® boxes (GelPak® is a registered trade mark of Vichem Corporation)
  • 1 year for uncoated probes
  • 6 months for probes with conductive coating
All in-stock items ship within 24 hours.
Standard Ground, 2-Day, Next Day options available.
Details Price QTY
Series: NSG01
Product Tip Quantity: 10
Series: NSG10
Product Tip Quantity: 50
Series: NSG01
Product Tip Quantity: 50