By Center for Functional Nanomaterials Brookhaven
The Low-Temperature STM/AFM facility provides a state-of-the-art, ultra-high vacuum (UHV) scanning probe microscope for atomic-scale imaging, HR-AFM services for molecular structure imaging, spectroscopy, and manipulation at cryogenic temperatures. The system operates at 4.2 K (down to 2.2 K or elevated temperatures up to ~300 K for specialized experiments) in a liquid helium cryostat and is optimized for ultra-stable, low-drift measurements. (*) must be justified in proposal, extra planning, time and special scheduling is required. Please contact before proposing. Sample NC-AFM data (frequency shift) of custom designed precursors molecules which were surface synthesized into GNR assemblies. Data acquired using GXSM-3.0 + SR-MK3-A810/PLL operating a modified CREATEC based LT-STM/AFM in force detection mode, constant height operation at approx. 70pm oscillation amplitude using a Q-Plus (TM Franz J. Giessibl) Sensor @29.84kHz and a "magic" functionalized tip not to be disclosed here. (*) NC-AFM detection is using a qPlus Sensor (TM) FJ. Giessibl at 30kHz. Frequency shift detection, constant height force (Freq. shift) mapping.
