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NanoWorld AFM Probes
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Type: CDT-FMR

Conductive Diamond coated tip - Force modulation mode - Reflex coating

NanoWorld Pointprobe® FM probes are designed for force modulation mode imaging. The force constant of the FM type fills the gap between contact and non-contact probes. Furthermore non-contact or tapping mode imaging is possible with this AFM probe. All SPM and AFM probes of the Pointprobe® series are made from monolithic silicon which is highly doped to dissipate static charge. They are chemically inert and offer a high mechanical Q-factor for high sensitivity. The tip is shaped like a polygon based pyramid with a height of 10 - 15 µm.

For applications that require hard contact between tip and sample this probe offers a real diamond tip-side coating. This coating features extremely high wear resistance due to the unsurpassed hardness of diamond.

The typical macroscopic tip radius of curvature lies in the range between 100 and 200 nm. Nanoroughnesses in the 10 nm regime improve the resolution on flat surfaces.

The CDT features a conductive diamond coating. Some typical applications for this tip are Scanning Spreading Resistance Microscopy (SSRM), Tunneling AFM (Conducting AFM) and Scanning Capacitance Microscopy (SCM).

The reflex coating on the detector side of the cantilever enhances its reflectance and prevents light from interfering within the cantilever.

 
diamond coated tip
Cantilever Data ValueRange*
Thickness 3.0 µm2.5 - 3.5
Mean Width 27.5 µm22.5 - 32.5
Length 225 µm220 - 230
Force Constant 6.2 N/m3 - 11.4
Resonance Frequency 105 kHz80 - 130
 Order Code Quantity Data Sheet
CDT-FMR-10 10 yes
CDT-FMR-20 20 yes
CDT-FMR-50 50 no
*Typical values


Conductive Diamond Coating

Diamond coating is an approximately 100 nm thick coating of polycrystalline diamond on the tip-side of the cantilever leading to an unsurpassed hardness of the tip. Figure 1 shows the raman spectrum of the coating verifiying true diamond.

The coating is highly doped with boron. This leads to a macroscopic resistivity of 0.003 - 0.005 Ωcm.

Reflex Coating

Reflex coating is an approximately 30 nm thick aluminum coating on the detector side of the cantilever which enhances the reflectance of the laser beam by a factor of 2.5. Furthermore it prevents light from interfering within the cantilever.

For more information contact: info@nanoworld.com
Pointprobe® is a registered trademark of NanoWorld AG
All data are subject to change without notice.
NanoWorld AG
Rue Jaquet-Droz 1
Case Postale 216
CH-2002 Neuchâtel
Switzerland
www.nanoworld.com
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Member of NanoWorld Group