Tsinghua University

Hung-Ying Chen

Rong-Ming Ho

Shangjr Gwo

Han-Yu Hsueh

Ming-Shiuan She

Shang-Jr Gwo

Meng-Hsien Lin

Nanoporous polymers with gyroid nanochannels can be fabricated from the self-assembly of degradable block copolymer, polystyrene-b-poly(-lactide) (PS-PLLA), followed by the hydrolysis of PLLA blocks. A well-defined nanohybrid material with SiOgyroid nanostructure in a PS matrix can be obtained using the nanoporous PS as a template for the sol-gel reaction. After subsequent UV degradation of the PS matrix, a highly porous inorganic gyroid network remains, yielding a single-component material with an exceptionally low refractive index (as low as 1.1).

Antireflection structures with an exceptional low refractive index and devices containing the same

Nanoporous polymers with gyroid nanochannels can be fabricated from the self-assembly of degradable block copolymer, polystyrene-b-poly(L-lactide) (PS-PLLA), followed by the hydrolysis of PLLA blocks. A well-defined nanohybrid material with SiOgyroid nanostructure in a PS matrix can be obtained using the nanoporous PS as a template for the sol-gel reaction. After subsequent UV degradation of the PS matrix, a highly porous inorganic gyroid network remains, yielding a single-component material with an exceptionally low refractive index (as low as 1.1).

One embodiment of the present invention provides a method for forming a nanoparticle film, which comprises the steps of: preparing a nanoparticle solution, which comprises a solvent and supersaturated nanoparticles with surface ligand molecules; and dip coating a substrate to the nanoparticle solutions to form a first monolayer of the nanoparticles on the substrate, the first monolayer and repeatedly formed monolayers on top of the first monolayer constructing the nanoparticle film. Another embodiment of the present invention provides a nanoparticle film, comprising a first monolayer consisted of a two-dimensional nanoparticles array that are near-field coupled with each other to have tunable plasmonic properties by changing the number of stacked monolayers.

Growing community of inventors

Hsinchu, Taiwan

Hung-Ying Chen