Park, S.H. Park, H. Hur, K. Lee, S. 2024-01-19T18:32:12Z 2024-01-19T18:32:12Z 2021-09-02 2020-01 2576-6422 https://pubs.kist.re.kr/handle/201004/119178 Self-assembled photonic crystals have proven to be a fascinating class of photonic materials for nonabsorbing structural colorizations over large areas and in diverse relevant applications, including tools for on-chip spectrometers and biosensors, platforms for reflective displays, and templates for energy devices. The most prevalent building blocks for the self-assembly of photonic crystals are spherical colloids and block copolymers (BCPs) because of the generic appeal of these materials, which can be crafted into large-area 3D lattices. However, because of the intrinsic limitations of these structures, these two building blocks are difficult to assemble into a direct rod-connected diamond lattice, which is considered to be a champion photonic crystal. Here, we present a DNA origami-route for a direct rod-connected diamond photonic crystal exhibiting a complete photonic bandgap (PBG) in the visible regime. Using a combination of electromagnetic, phononic, and mechanical numerical analyses, we identify (i) the structural constraints of the 50 megadalton-scale giant DNA origami building blocks that could self-assemble into a direct rod-connected diamond lattice with high accuracy, and (ii) the elastic moduli that are essentials for maintaining lattice integrity in a buffer solution. A solution molding process could enable the transformation of the as-assembled DNA origami lattice into a porous silicon- or germanium-coated composite crystal with enhanced refractive index contrast, in that a champion relative bandwidth for the photonic bandgap (i.e., 0.29) could become possible even for a relatively low volume fraction (i.e., 16 vol %). Copyright ？ 2019 American Chemical Society. English American Chemical Society Design of DNA Origami Diamond Photonic Crystals Article 10.1021/acsabm.9b01171 1 ACS Applied Bio Materials, v.3, no.1, pp.747 - 756 ACS Applied Bio Materials 3 1 747 756 N scopus 2-s2.0-85078661724 Article Block copolymers Crystal lattices Diamonds Display devices DNA Elastic moduli Energy gap Porous silicon Refractive index Sols Spontaneous emission Diamond lattices Diamond photonic crystals Dna origamis Effective elastic modulus On-chip spectrometers Photonic bandgap (PBG) Self assembled photonic crystals Structural constraints Photonic crystals diamond lattice DNA origami effective elastic moduli photonic bandgap (PBG) photonic crystals