High-Pressure Near-Infrared Luminescence Studies of Fe-Activated LiGaO.

A 0.25% iron (Fe)-doped LiGaO phosphor was synthesized by a high-temperature solid-state reaction method. The phosphor was characterized utilizing X-ray diffraction (XRD), scanning electron microscopy (SEM), high-pressure photoluminescence, and photoluminescence decay measurement techniques using diamond anvil cells (DACs).

Carbon and Manganese in Semi-Insulating Bulk GaN Crystals.

Co-doping with manganese and carbon was performed in gallium nitride grown by halide vapor phase epitaxy method. Native seeds of high structural quality were used. The crystallized material was examined in terms of its structural, optical, and electrical properties.