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 Type: CDT-NCLR |
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Conductive Diamond coated tip - Non-contact/Tapping™ mode Long Cantilever - Reflex coating |
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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 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 reflectivity and prevents light from interfering within the cantilever. |
| Technical Data | Value | Range* |  |
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| Thickness | 7 µm | 6.5 - 7.5 | |||
| Mean Width | 38 µm | 33 - 43 | |||
| Length | 225 µm | 220 - 230 | |||
| Force Constant | 48 N/m | 31 - 71 | |||
| Resonance Frequency | 190 kHz | 160 - 210 | |||
| Order Code | Quantity | Data Sheet |
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| CDT-NCLR-10 | 10 | yes | |||
| CDT-NCLR-20 | 20 | yes | |||
| CDT-NCLR-50 | 50 | no | |||
| CDT-NCLR-W | 380 | yes | |||
* Typical values |
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| Conductive Diamond Coating |
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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 Ohm*cm. |
| Reflex Coating |
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| Reflex coating is an approximately 30 nm thick aluminium coating on the detector side of the cantilever which enhances the reflectivity of the laser beam by a factor of 2.5. Furthermore it prevents light from interfering within the cantilever. |
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For applications allowing higher resonance frequencies or a shorter cantilever length we recommend our Pointprobe® type CDT-NCHR. For more information contact: info@nanoworld.com | |
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POINTPROBE® is a registered trademark of NANOWORLD AG TappingMode™ is a trademark of Digital Instruments Inc. GelPak® is a registered trademark of Vichem Corporation All data are subject to change without notice. |
NanoWorld AG Rue Jaquet-Droz 1 Case Postale 216 CH-2002 Neuchâtel Switzerland www.nanoworld.com |
