Development of a Near-infrared Reflective Film Using Disk-shaped Silver Nanoparticles

FUJIFILM Corporation has developed a novel near-infrared reflective film using disk-shaped silver nanoparticles. We estimated the best shape and arrangement of the silver nanodisks to reflect near-infrared rays by simulation. In order to form an optimum structure, we applied the technology which has been used to form silver halide tabular grains in photographic film. Moreover, we have developed the coating technology to make a uniform layer of silver nanodisks that reflect near-infrared rays effectively.