Paolo Longo PhD, Gatan, Inc.
Sample courtesy of Professor Robert Wallace at UTD, Richardson, TX
Microscope courtesy of Professor Ray Carpenter, Arizona State University, Tempe AZ
Acknowledgement to Dr. Toshiro Aoki at Jeol USA (now at ASU) for helping set up microscope for experiment.
InP substrate is very beam sensitive; EELS analysis was carried out at high-speed to avoid electron beam-induced damage.
Probe-corrected Jeol ARM 200 TEM/STEM microscope; S-FEG emission gun; Enfinium™ ER system; voltage: 200 kV; STEM mode