▎ 摘　　要

NOVELTY - Graphene film-based whispering wall microsphere molecular gas sensor comprises a silicon dioxide microspheres prepared by discharging the end of the optical fiber through a fiber fusion splicer to form a microsphere whispering gallery cavity, and the diameter of the silicon dioxide microspheres is 400-600 microns. The largest circle between the spherical cavity of the silica microsphere and the straight line where the optical fiber is located is the equatorial line, and the plane on which it is located is the equatorial plane. The silica microsphere is divided into two parts, the upper hemisphere and the lower hemisphere, by the equatorial line, which are connected to the optical fiber. Is the lower hemisphere. The single-layer graphene is attached to the surface of the upper hemisphere outside the silica microspheres, the minimum distance from the equator line is 50-100 microns, and its area is 104-4asterisk104 square microns. USE - Used as graphene film-based whispering wall microsphere molecular gas sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of graphene film-based whispering wall microsphere molecular gas sensor.