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Issue 61, 2018, Issue in Progress
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Biomimetic colloidal photonic crystals by coassembly of polystyrene nanoparticles and graphene quantum dots

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Abstract

Biomimetic nanostructured materials with iridescent structural colors have attracted great attention due to their potential in photonic devices, materials science, and biomedical engineering. The technological applications of artificial photonic crystals (PCs), however, are often hindered by their low color visibility. Herein, we report colloidal PCs with enhanced color visibility through the coassembly of thioglycerol-modified graphene quantum dots (GQDs) into the close-packed array of polystyrene (PS) nanospheres. The enhanced polystyrene PCs were fabricated by both centrifugal sedimentation and drop-casting methods. The color visibility of the resulting PCs was found to be strongly dependent on the hydrothermal time (i.e., carbonization) and the doping concentrations of GQDs. The PCs with brilliant reflection colors with red, green and blue (RGB) regions have been achieved by controlling the size of the constituent PS nanoparticles. As a proof of concept for photonic ink applications, we demonstrated a number of photonic images with RGB colors on multiple substrates including paper, silicon wafer and glass. This work is expected to provide new insight into the development of emerging advanced photonic crystals with high color visibility for applications such as colloidal paints, textile fabrics, and wearable displays.

Graphical abstract: Biomimetic colloidal photonic crystals by coassembly of polystyrene nanoparticles and graphene quantum dots

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Supplementary files

Article information


Submitted
27 Aug 2018
Accepted
03 Oct 2018
First published
10 Oct 2018

This article is Open Access

RSC Adv., 2018,8, 34839-34847
Article type
Paper

Biomimetic colloidal photonic crystals by coassembly of polystyrene nanoparticles and graphene quantum dots

D. Huang, M. Zeng, L. Wang, L. Zhang and Z. Cheng, RSC Adv., 2018, 8, 34839
DOI: 10.1039/C8RA07158F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
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    [Original citation] - Published by the PCCP Owner Societies.
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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

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