AFM Probes » NCLPt

NCLPt

Electrical, Tapping Mode AFM Probe with a Long Cantilever

Coating: Electrically Conductive
Tip shape: Standard
Cantilever:
F 190 kHz
C 48 µm
L 225 µm
*nominal values

NanoWorld Pointprobe® NCL probes are designed for non-contact or tapping™ mode imaging and offer an alternative to our high frequency non-contact type NCH. The NCL type is recommended if the feedback loop of the microscope does not accept high frequencies or if the detection system needs a minimum cantilever length (> 125 µm). This probe combines high operation stability with outstanding sensitivity. Compared to the high frequency non-contact type NCH the maximum scanning speed is slightly reduced.

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.

Additionally, this probe offers an excellent radius of curvature.

PtIr5 Coating

The PtIr5 coating consists of a 23 nm thick platinum iridium5 layer deposited on both sides of the cantilever. The tip side coating enhances the conductivity of the tip and allows electrical contacts. The detector side coating enhances the reflectance of the laser beam by a factor of 2 and prevents light from interfering within the cantilever.

The coating process is optimized for stress compensation and wear resistance. Wear at the tip can occur if operating in contact-, friction- or force modulation mode. As the coating is almost stress-free the bending of the cantilever due to stress is less than 2 degrees.

AFM Tip:

  • AFM Cantilever:

  • Beam
  • 225 µm (220 - 230 µm)*
  • 38 µm (33 - 43 µm)*
  • 7 µm (6.5 - 7.5 µm)*
  • 48 µm (31 - 71 µm)*
  • 190 kHz (160 - 210 kHz)*
  • * typical range This product features alignment grooves on the back side of the holder chip.

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