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

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)645-659
Number of pages15
JournalSensors and Materials
Volume31
Issue number2
DOIs
Publication statusPublished - Jan 1 2019

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Photonic crystals
formaldehyde
Formaldehyde
assembly
photonics
Fabrication
fabrication
augmentation
Polystyrenes
crystals
polystyrene
Nanoparticles
nanoparticles
Fluorescence
templates
Diacetyl
Photonic band gap
fluorescence
Polymers
cracks

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

Cite this

Fabrication of inverse opal photonic crystals with mesopores using binary colloidal co-assembly method for signal enhancement in formaldehyde detection. / Komori, Yuto; Murakami, Hiroaki; Kimura, Taiki; Onodera, Takeshi.

In: Sensors and Materials, Vol. 31, No. 2, 01.01.2019, p. 645-659.

Research output: Contribution to journalArticle

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