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Layer‐by‐layer assembly of photonic crystal using DNA
Author(s) -
Kimura Yoshinori,
Kaneda Shohei,
Fujii Teruo,
Murata Satoshi
Publication year - 2013
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11377
Subject(s) - photonic crystal , fabrication , materials science , colloidal crystal , layer (electronics) , crystal (programming language) , photonics , optoelectronics , nanotechnology , crystallization , computer science , colloid , physics , chemistry , medicine , alternative medicine , thermodynamics , programming language , pathology
Photonic crystals are a key component for optical next‐generation communication and computing in that they have a periodic 3D structure on the same scale as optical wavelengths. The major diculty in the practical use of photonic crystals exists in its fabrication process. As an optical component, it must be a defect‐free large crystal with waveguide patterns aecting the propagation of photons. Many attempts have been made to realize such a crystal, but low‐cost and rapid fabrication of a defect‐free large crystal is still a dicult problem. Here, we propose a novel fabrication method combining colloidal crystallization and DNA nanotechnology. In this method, a face‐centered lattice made of 1‐µm polystyrene particles is assembled on a patterned template in a layer‐by‐layer fashion. In order to control the binding among particles, DNA‐gold nano‐particle conjugates (10‐nm GNP modied with 52mer DNA) are used. Specic bonding rules between particles and GNPs dened by the base sequence of DNA results in the layer‐by‐layer growth of the crystal. We have built two‐layer crystals using the proposed method, and the results show its feasibility. We also found some important factors necessary to improve the quality of the crystal. © 2013 Wiley Periodicals, Inc. Electron Comm Jpn, 96(5): 42–49, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/ecj.11377