▎ 摘　　要

NOVELTY - An efficient light-absorbing configuration composite material reinforced by resonant cavity and interference film layer compirses heterogeneous film system whose basic structure is P/AB M AB /Sub, , Sub is substrate material, P is periodic cavity ultra-surface micro-nano structure film layer and (M is central doped photonic crystal film structure; the material of the P is selected from Si, graphene, silver, gold, copper, material of A, B, M dielectric layer in the film structure is independently selected from the group consisting of germanium , tellurium, zinc sulfide, zinc selenide, titanium, silicon, Graphene, molybdenum disulfide, tungsten disulfide, molybdenum diselenide, aluminum oxide, silicon dioxide, titanium dioxide, silicon nitride; The equivalent optical thickness of each medium layer in film structure AB M AB is 400-3000 nm. USE - Light-absorbing configuration composite material reinforced by resonant cavity and interference film layer for photovoltaic cell, photolysis water hydrogen, sea water desalination. ADVANTAGE - The high-efficient light-absorbing configuration composite material is reinforced by resonant cavity and interference film layer, which can obviously improve the light absorption effect of ultraviolet-visible light-near infrared wave band, and inhibits middle and far infrared radiation, thus greatly improving the light energy conversion efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the light-absorbing configuration composite material reinforced by resonant cavity and interference film.