| AVS 54th International Symposium | |
| Applied Surface Science | Tuesday Sessions |
| Session AS-TuP |
| Session: | Aspects of Applied Surface Science Poster Session |
| Presenter: | C.-C. Chang, National Taiwan University |
| Authors: | Y.-T. Kao, National Taiwan University H.-T. Su, National Taiwan University C.-C. Chang, National Taiwan University |
| Correspondent: | Click to Email |
Developing chemical strategies for synthesizing and characterizing functionalized nanoparticles and microspheres on which atomic aggregates of unique properties are coded for forming a lattice of repeating patterns as the photonic crystal are of great challenge for elevating photonic crystal research towards practical photonic device fabrication. When used in the photonic circuitry system, the crystal containing property-enhancing, functionalized microspheres must possess, among others, high degrees of optical clarity. This mandates high quality dispersions of the functionalized nanomaterials within the host matrix. Nanoparticles and microspheres of different chemical compositions and refractive indexes have been synthesized using a variety of chemical synthetic approaches. They were then coated with metal nanoparticles or functionalized with inorganic linkers, which were well dispersed on the surface of unit spheres. Photonic crystals were produced by self-assembly of these unit spheres through gravity or pressure. A variety of analytical methods were employed to reveal the chemical process involved in the synthesis, coding and functionalization of the unit spheres. Selective binding of species with unique functions to the surface of the unit materials was achieved by pretreating the materials surface, designing precursor molecules, and controlling the reactions involved in coding and functionalization. The bonding, reaction chemistry as well as the chemical identification of the species that were coded on the model unit materials surface will be discussed.