Scanning Probe Microscopy

Scanning Tunneling Microscope

ULTRASCAN LT-100 Ultra-High Vacuum Scanning Tunneling Microscope  
Atomic-scale studies of surface-related physical and chemical phenomena

Room temperature / 77K / 4K multi-temperature zones | Atomic-scale resolution | Ultimate vacuum 5×10⁻¹⁰ mbar

Scanning Tunneling Microscope (STM) is a core tool in surface science research, capable of imaging and performing spectroscopic measurements on material surfaces at the atomic scale. It is widely used in frontier fields such as surface physics research, low-dimensional materials, and the atomic structures and local electronic states of single molecules and thin films.

ZEPTOOLS ULTRASCAN LT-100 is built on ultra-high vacuum and double-layer liquid helium cryogenic technology. It is equipped with a sample preparation chamber, a load-lock chamber, and a multi-stage ultra-high vacuum pump set, enabling stable long-term observation at room temperature, liquid nitrogen temperature, and liquid helium temperature. It is available in multiple configurations, including the standard version, the TERS tip-enhanced Raman spectroscopy hybrid version, and MINI-STM, and supports customization on demand.

Main Technical Specifications

Ultra-high vacuum and liquid helium low temperature, providing stable support for atomic-scale observation

Product Model: ULTRASCAN LT-100

Operating Temperature Zones: Room temperature / Liquid nitrogen 77K / Liquid helium 4K

Ultimate Vacuum: Better than 5×10⁻¹⁰ mbar

Resolution: Atomic-scale resolution

Noise: Electronic noise < 500 fA, mechanical noise < 1 pm

Scan Range: Room temperature 3×3 μm; 77K 1×1 μm; 4K 0.6×0.6 μm

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Application Cases

Measured imaging results of ULTRASCAN LT-100 in frontier surface science research

Monolayer and bilayer borophene on Cu(111) surface	Moiré superlattice of monolayer FeO(111) film on Au(111)
Monolayer borophene on Ag(100) surface	Honeycomb structure of Sn-Bi overlayer on Si(111) surface
STM image of coexisting α and β phases of two-dimensional CO on Cu(111) surface at 77K	Two-dimensional borophene sheets on Ag(111) surface
Honeycomb structure of Sn-Bi overlayer on Si(111) surface	Adsorption of 0.01 monolayer H₂S molecules on Au(111) surface

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