Fabrication of inverse opal photonic crystals with mesopores using binary colloidal co-assembly method for signal enhancement in formaldehyde detection

Yuto Komori, Hiroaki Murakami, Taiki Kimura, Takeshi Onodera

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

In this study, inverse opal photonic crystals (IOPCs) with mesopores (diameter, 2-50 nm) were fabricated by the optimization of the size ratio of large to small polystyrene (PS) nanoparticles used as the template of the IOPCs and the concentration of the precursor forming the structure of the IOPCs. The generation of cracks and defects on the obtained IOPCs was avoided by using the co-assembly method, which is a self-organized fabrication method for IOPCs using nanoparticles of a polymer such as PS as a template in a precursor solution. 4-Amino-3-pentan-2-one (Fluoral-P) was infiltrated into the IOPCs, and the edge of the photonic band gap of an IOPC fabricated using 350 and 50 nm PS nanoparticles (50 nm-350IOPC) was matched with part of the fluorescence wavelength range of 3,5-diacetyl-1,4-dihydro-2,6-lutidine (DDL), which is a substance emitting fluorescence resulting from the reaction of Fluoral-P with formaldehyde. It was found that introducing mesopores into 350IOPC with infiltrated Fluoral-P was effective for enhancing the signal in formaldehyde detection.

本文言語英語
ページ(範囲)645-659
ページ数15
ジャーナルSensors and Materials
31
2
DOI
出版ステータス出版済み - 2019

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

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