NANOSENSORS™

CDT-NCLR

Conductive Diamond Coated Tip - Non-Contact/Tapping Mode - Long cantilever - Reflex Coating

NANOSENSORSCDT-NCLR probes are designed for non-contact mode or tapping mode AFM (also known as: attractive or dynamic mode). The NCL type is offered as an alternative to the NANOSENSORS™ high frequency non-contact type (NCH). The CDT-NCLR probe is recommended if the feedback loop of the microscope does not accept high frequencies (400 kHz) or if the detection system needs a minimum cantilever length > 125 µm. Compared to the high frequency non-contact type NCH the maximum scanning speed is slightly reduced. This sensor type combines high operation stability with outstanding sensitivity and fast scanning ability.

For applications that require a wear resistant and an electrically conductive tip we recommend this type. Some applications are Tunneling AFM and Scanning Capacitance Microscopy (SCM). The CDT Diamond Coating is slightly doped and the total resistance measured in contact to a platinium surface is < 10 kOhm.

The typical macroscopic tip radius of curvature is between 100 and 200 nm. Nanoroughness in the 10 nm regime improves the resolution on flat surfaces.
The probe offers unique features:
- real diamond coating, slightly doped
- high mechanical Q-factor for high sensitivity
- alignment grooves on backside of silicon holder chip
- precise alignment of the cantilever position (within +/- 2 µm) in conjunction with the usage
  of the alignment chip
- compatible with PointProbe® Plus XY-Alignment Series
The reflex coating is an approximately 30 nm thick aluminum coating on the detector side of the cantilever which enhances the reflectivity of the laser beam by a factor of about 2.5. Furthermore it prevents light from interfering within the cantilever. The virtually stress-free coating is bending the cantilever less than 3.5% of the cantilever length.
CDT-NCLR Front View  CDT-NCLR Graphic
Cantilever data:
Technical Data Nominal Value Specified Range
Thickness /µm 7 6.0 - 8.0
Mean Width /µm 38 30 - 45
Length /µm 225 215 - 235
Force Constant /(N/m) 48 21 - 98
Resonance Frequency /kHz 190 146 - 236
Order codes and shipping units:
Order Code Quantity Data Sheet Coating
CDT-NCLR-10 10 of all probes diamond and reflex
CDT-NCLR-20 20 of all probes diamond and reflex
CDT-NCLR-50 50 without diamond and reflex
CDT-NCLR-W > 370 of up to 32 probes diamond and reflex
For further information please contact your local distributor or NANOSENSORS™ directly.
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