Scanning Probe Microscope (SPM)

1. FFM & LM-FFM

Sample: oil film on polystyrene sheet

Topography�i5μm�j	FFM	LM-FFM

2.Micro Viscoelasticity AFM (VE-AFM)

Sample: Oil film on polyethylene sheet

Topography (10μm) Hard(light area): polystyrene	VE-AFM Soft (dark area): oil film

3. Surface Potential Measurement

•An SPM that capture the surface potential that does not appear in the surface shape to an image
•Measures the sample�fs surface potential using the static electricity between the probe and the sample.

Surface Potential Measurement

4. KFM Measurement Example (1)

Electric potential difference between area oxidized by electric-field enhancement and area naturally oxidized on metallic thin film

5. Environment Control SPM (SPA-300HV)

1. Various environment control possible.
   •Vacuum: up to 10-7Torr
   •Program temperature -120 to +800 oC
   •Gas exchange in chamber possible
2. Multi-Function Compatibility
   •The same multi-function measurement as atmospheric units, such as micro viscoelasticity and friction distribution are possible in various environments.

6. SPM in liquid /Electrochemical SPM

Block diagram of Electrochemical STM

Compared to atmospheric STM, STM in solution is covered with liquid that has ion conductivity. The main distinction between them is the ion current from electrochemical reaction that flows while voltage is impressed on the probe and the sample. Since it is necessary to conduct SPM observation while independently controlling the probe and the sample, the device is formed with a four-electrode system that utilizes a bipotentiostat.

Because the optical lever AFM operates in environments where the detection light filters through, it is possible to observe samples in solution. High magnification electron microscopes cannot be used to directly observe samples in solution, but with SPM in liquid, high magnification/on site observations of raw/live organism samples and samples during reaction process in solution are enabled.

7. Features of Schale Submerged Cell

•Because of the open structure that does not place load on the PZT scanner, constant PZT sensitivity can be maintained.
• Sample/solution exchange can be made easily.
• Since the cell is simply placed, measurement location can be moved up to maximum of about 10mm.

Structure of Shale cell

8. Optical Probe Microscope

Structure of SNOAM