In addition to extensive characterization facility located at SUNY Poly, the following are in close proximity of material growth laboratory:
Photoluminescence
- Pulsed and CW laser excitation sources at 225 nm (HeAg) and 325 nm (HeCd) available for high-resolution spectral measurement (1200 rules/mm dispersed in ¼ m monochromator)
- Intensity and and temperature controls enable measurements over 5 orders of magnitude of excitation power and variable temperatures 10–300 K respectively
Hall Effect Measurement
- Van der Pauw method (LN2 capable)
- Allows determination of carrier concentration, mobility, and resistivity
Hg-Probe Capacitance-Voltage Measurement
- Liquid Hg used to form contactless electrical measurement for non-destructive doping profile measurement
- Coupled to Agilent E4980A and Keithley 4200 for automated measurements up to 5 MHz
- Can accommodate variable wafer sizes >1cm2
CSM Hg-Probe |