C³ LAB
Cavallo Characterization Laboratory
The Cavallo Characterization Laboratory at the Cavallo Research Group is dedicated to advanced material and device characterization under a wide range of environmental conditions. The lab is equipped with state-of-the-art instrumentation for precision structural, optical, and electrical analysis, enabling both fundamental research and applied device development.
Raman Microscope
The Horiba HR Evolution is a high-resolution confocal Raman and photoluminescence microscope system featuring dual excitation wavelengths (325 nm and 442 nm), detection across 200–2500 nm, and microscope objectives from 5x to 100x. It includes dual gratings, a silicon CCD detector, a 2D mapping stage with software, and offers a spectral resolution of 0.1 cm⁻¹. Use of Equipment: Internal: $25/hr (unassisted), $50/hr (assisted/training) External: $50/hr (unassisted), $75/hr (assisted/training)
Cryogenic Four‑Probe Station
This system enables precise electrical transport measurements of materials and devices from 77 K to 300 K under high‑vacuum conditions down to 50 μtorr. Samples are mounted on a thermally conductive stage for stable temperature control. Cooling is achieved with liquid nitrogen, while a heating block allows controlled warming to room temperature and beyond. A high‑magnification microscope facilitates accurate probe placement, and a source‑measure unit performs bias sweeps (up to ±10 V) and current measurements (up to ±500 mA) for detailed I–V characterization.
Thermo Scientific Nicolet iN10 MX Infrared Microscope
This infrared imaging microscope combines high‑resolution microscopy with advanced infrared spectroscopy for chemical identification and mapping. It uses a cooled MCT detector to deliver high sensitivity and rapid acquisition of both point‑based spectra and large‑area spectral maps in minutes. The system supports detection from the mid‑IR range and allows detailed analysis of chemical composition and distribution across heterogeneous samples, making it ideal for materials research requiring both imaging and spectral data.