Porous complex composite film oxygen sensor as well as preparation method thereof

The invention discloses a porous complex composite film oxygen sensor as well as a preparation method thereof. According to the invention, porous complex crystals grow on a macromolecule base material film by adopting an in-situ diffusion method so as to prepare a composite film optical oxygen sensor; the crystals grow uniformly and orderly; the reaction condition is mild; the cost is low; the prepared composite film oxygen sensor is good in thermal stability, chemical stability, toughness and mechanical performance, high in flexibility, rapid in response speed, high in repeatability and interference resistance, and is suitable for industrial rapid large-area production.