Related Experiment Video
Updated: Mar 31, 2026
08:58
Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
Published on: December 2, 2022
3.9K
Single-Crystal Diamond Nanowire Tips for Ultrasensitive Force Microscopy
Nano Letters
|October 31, 2015
Summary
Sharp diamond tips were fabricated for ultrasensitive force microscopy. These diamond nanowire tips enable high-resolution imaging with exceptionally low friction and jitter, advancing force-detected magnetic resonance imaging.
Area of Science:
- Nanotechnology
- Materials Science
- Surface Science
Background:
- Ultrasensitive force microscopy requires high-performance scanning tips.
- Existing tips face limitations in sensitivity and resolution for advanced applications.
Purpose of the Study:
- To fabricate and integrate sharp diamond tips for ultrasensitive force microscopy.
- To assess the performance of diamond nanowire tips in force detection experiments.
Main Methods:
- Top-down plasma etching of single-crystalline diamond substrates.
- Fabrication of diamond nanowires with tunable diameters (50-500 nm).
- Integration of diamond tips onto pendulum-style silicon cantilevers.
Main Results:
- Achieved diamond tip radii of ~10 nm and apex angles of ~15°.
- Demonstrated integration of diamond nanowires as scanning tips.
- Observed exceptionally low noncontact friction and frequency jitter.
- Maintained high mechanical quality factor (Q ≈ 130,000) near surfaces.
Conclusions:
- Diamond nanowire tips offer superior performance for ultrasensitive force microscopy.
- The developed tips are promising for enhancing sensitivity and resolution in force-detected magnetic resonance imaging.
