The thiadiazole represented by formula, when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light:wherein, in formula, each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine. In some embodiments, an apparatus may include an impactor operatively linked to a guide disposed within a housing and an electrically driven actuator enclosed within the housing. The second utensil opening is wider than the first utensil opening.