| 초록 |
Photonic crystal can modulate propagation of light, and it has a periodic nanostructure with ~1/2 wavelength of visible light. Via colloidal assembly techniqueusing monodisperse microspheres in liquid medium, self-assembled colloidal photonic crystal can be fabricated. Recently we have demonstrated a fabrication method for a well-ordered opal structure by using ‘Directed enhanced evaporation of colloidal assembly (DEECA)’ process, from which we could fabricate various inverse opal hydrogel sensors by polymerizing acrylic monomers and subsequently eliminating the opal template. Toward an improved applicability of inverse opal hydrogel sensor, we investigate a transfer process for opal templated hydrogel films from glass to flexible PET film. We also investigate a free-standing photonic ball sensor, not attached to the substrate. Fabrication of various sensors such as pH sensor, temperature sensor, and glucose sensor will be demonstrated. |
