Equipment

JPK Nanowizard Atomic Force Microscope (AFM)

Atomic Force Microscopy (AFM) can be used to determine the surface topography in air or liquids with atomic height resolution. It can be used to perform stiffness mapping with Quantitative Imaging force curves, in addition to “microrheology” on viscoelastic materials. An inverted optical microscope can align surface scans with fluorescent imaging. Heated stages are available for both solids and liquids. Up to 100 x 100 um lateral range and a maximum peak-to-valley height variation of 15 um.

Typical use cases include mapping the moduli of biological, polymeric, and other organic materials, with a modulus range of GPa to sub-kPa.

 

Bruker ContourX-500 Optical Profilometer

Optical profilometry can be used to quickly and easily measure surface topography over large areas. The interferometric optical profiler enables the collection of quantitative surface height profiles with nanometer Z and micron X-Y spatial resolution.

 

Signatone Probe Station with Keithley 4200A Semiconductor Parameter Analyzer

The probe station can be used to characterize the electrical properties of materials and devices, including transistors, capacitors, and resistors. Additionally, a solar simulator is available for the characterization of photovoltaics (solar cells).

 

Mettler Toledo DMA 1

The Dynamic Mechanical Analyzer (DMA) can be used to determine the mechanical properties of viscoelastic materials such as polymers and other solids. It can be operated in bending, tension, shear and compression modes. Specimens can be studied over a wide range of temperatures (-190 °C to 600 °C) and frequencies (0.001 Hz to 300 Hz).

 

TA Instruments HR-20 Rheometer

Rheometry is used to evaluate the viscoelastic/rheological properties of solids and liquids. Typical parameters include storage modulus, loss modulus, and viscosity. Beyond analyzing materials over a wide range of temperatures, -160 to 600 C with the Environmental Test Chamber, an ultraviolet accessory is available to characterize UV curing or degradation, and the dielectric properties of materials can be analyzed with the LCR meter accessory. Additionally, a Double Wall Ring is available to perform interfacial rheology.

 

 

Bruker Hysitron TS 77 Nanoindenter

The nanoindenter can quickly and easily probe the modulus and hardness of materials with stiffness of 1 MPa or greater. This technique is also known as depth sensing indentation or instrumented indentation. It can perform dynamic analyses to determine viscoelastic properties.

 

TA Instruments TGA 550

Thermogravimetric analysis (TGA) can quantify thermal decomposition under nitrogen or air, at temperatures of up to 1000 °C. It can be used to analyze gas phase decomposition products when used with our Fourier-transform infrared (FTIR) accessory. The system can determine precise compositions of organic/inorganic hybrid systems, or can be used to calculate the moisture content of hydrogels and other solids.

 

TA Instruments DSC 250

Differential Scanning Calorimetry (DSC) is used to quantify the melting, crystallization, and glass transitions of organic materials between -90 °C and 550 °C. Modulated DSC can be used to distinguish between kinetic and thermodynamic heatflows.

 

Horiba LabRAM Soleil Raman Microscope

Raman spectroscopy facilitates the study of vibrational and other low frequency optical modes in a specimen. When combined with a motorized stage, such systems can be used to gain chemical information with sub-micron spatial resolution. The Raman system at the SEC has 532 nm and 325 nm laser lines. Fluorescence/photoluminescence measurements are also available.

 

Magritek Spinsolve 80 NMR

Nuclear magnetic resonance (NMR) spectroscopy can be used to determine molecular composition. The benchtop system at the SEC can analyze H, C, and F atoms. Two-dimensional analysis modes include correlated spectroscopy (COSY), rotating frame Overhause effect spectroscopy (ROESY), heteronuclear multiple quantum coherence (HMQC) and heteronuclear single quantum coherence (HSQC) modes.

 

ThermoScientific Nicolet iS-50 FTIR

Fourier-transform infrared (FTIR) spectroscopy can be used to determine the molecular composition of specimens. The system at the SEC has a diamond ATR crystal for analysis of solids, powders, and liquids. A TGA-IR accessory is also available for analysis of the gases evolved during TGA experiments.

 

Malvern Zetasizer Pro

To analyze particles, whether metal, ceramic, organic, or biological, the Zetasizer is available to characterize particle size from 2 nm to 2 µm via dynamic light scattering (DLS), and evaluate the stability of suspensions by zeta potential determination.

Large (>2 um) particles are not suitable for the Zetasizer – please contact the Bauer Core for other characterization options.