Structurally colored silica photonic crystal coatings modified by Ce or Eu rare-earth dopants

Ramazan Dalmis; Isil Birlik; N. Funda Ak Azem; Erdal Celik

doi:10.1016/j.colsurfa.2020.125138

Structurally colored silica photonic crystal coatings modified by Ce or Eu rare-earth dopants

Ramazan Dalmis^*, Isil Birlik, N. Funda Ak Azem, Erdal Celik

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Recently three-dimensional photonic crystal (PC) materials with inverse opal morphology are very popular due to their high application capacity. The structural color that is one of these popular application areas attracts attention with fadeless bright color, low toxicity and eco-friendly features. With this respect, silica based inverse opal photonic crystals were deposited on borosilicate glass substrates and the effect of the cerium (Ce) and europium (Eu) dopants on the properties of these coatings were investigated in detail. Thermal, structural and physical properties were characterized via differential thermal analysis (DTA-TGA), x-ray photoelectron spectroscopy (XPS), x-ray diffractometer (XRD), scanning electron microscope (SEM), UV spectrophotometer (UV–vis) and optical microscope (OM), respectively. The results reveal that the ordered porous honeycomb like morphology surrounds the entire 3-D structure. Periodically ordered photonic crystal morphologies are achieved at the coatings with the lowest dopant ratios. SiO₂ based PC coatings possess blue and purple structural colors. It was found that the photonic band gap value was red-shifted by Ce doping in the coating while blue-shifting by Eu doping.

Original language	English
Article number	125138
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	603
DOIs	https://doi.org/10.1016/j.colsurfa.2020.125138
Publication status	Published - 20 Oct 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

3-D photonic crystal
Cerium
Europium
Inverse opal
Structural color

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10.1016/j.colsurfa.2020.125138

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title = "Structurally colored silica photonic crystal coatings modified by Ce or Eu rare-earth dopants",

abstract = "Recently three-dimensional photonic crystal (PC) materials with inverse opal morphology are very popular due to their high application capacity. The structural color that is one of these popular application areas attracts attention with fadeless bright color, low toxicity and eco-friendly features. With this respect, silica based inverse opal photonic crystals were deposited on borosilicate glass substrates and the effect of the cerium (Ce) and europium (Eu) dopants on the properties of these coatings were investigated in detail. Thermal, structural and physical properties were characterized via differential thermal analysis (DTA-TGA), x-ray photoelectron spectroscopy (XPS), x-ray diffractometer (XRD), scanning electron microscope (SEM), UV spectrophotometer (UV–vis) and optical microscope (OM), respectively. The results reveal that the ordered porous honeycomb like morphology surrounds the entire 3-D structure. Periodically ordered photonic crystal morphologies are achieved at the coatings with the lowest dopant ratios. SiO2 based PC coatings possess blue and purple structural colors. It was found that the photonic band gap value was red-shifted by Ce doping in the coating while blue-shifting by Eu doping.",

keywords = "3-D photonic crystal, Cerium, Europium, Inverse opal, Structural color",

author = "Ramazan Dalmis and Isil Birlik and {Ak Azem}, {N. Funda} and Erdal Celik",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = oct,

day = "20",

doi = "10.1016/j.colsurfa.2020.125138",

language = "English",

volume = "603",

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T1 - Structurally colored silica photonic crystal coatings modified by Ce or Eu rare-earth dopants

AU - Dalmis, Ramazan

AU - Birlik, Isil

AU - Ak Azem, N. Funda

AU - Celik, Erdal

PY - 2020/10/20

Y1 - 2020/10/20

N2 - Recently three-dimensional photonic crystal (PC) materials with inverse opal morphology are very popular due to their high application capacity. The structural color that is one of these popular application areas attracts attention with fadeless bright color, low toxicity and eco-friendly features. With this respect, silica based inverse opal photonic crystals were deposited on borosilicate glass substrates and the effect of the cerium (Ce) and europium (Eu) dopants on the properties of these coatings were investigated in detail. Thermal, structural and physical properties were characterized via differential thermal analysis (DTA-TGA), x-ray photoelectron spectroscopy (XPS), x-ray diffractometer (XRD), scanning electron microscope (SEM), UV spectrophotometer (UV–vis) and optical microscope (OM), respectively. The results reveal that the ordered porous honeycomb like morphology surrounds the entire 3-D structure. Periodically ordered photonic crystal morphologies are achieved at the coatings with the lowest dopant ratios. SiO2 based PC coatings possess blue and purple structural colors. It was found that the photonic band gap value was red-shifted by Ce doping in the coating while blue-shifting by Eu doping.

AB - Recently three-dimensional photonic crystal (PC) materials with inverse opal morphology are very popular due to their high application capacity. The structural color that is one of these popular application areas attracts attention with fadeless bright color, low toxicity and eco-friendly features. With this respect, silica based inverse opal photonic crystals were deposited on borosilicate glass substrates and the effect of the cerium (Ce) and europium (Eu) dopants on the properties of these coatings were investigated in detail. Thermal, structural and physical properties were characterized via differential thermal analysis (DTA-TGA), x-ray photoelectron spectroscopy (XPS), x-ray diffractometer (XRD), scanning electron microscope (SEM), UV spectrophotometer (UV–vis) and optical microscope (OM), respectively. The results reveal that the ordered porous honeycomb like morphology surrounds the entire 3-D structure. Periodically ordered photonic crystal morphologies are achieved at the coatings with the lowest dopant ratios. SiO2 based PC coatings possess blue and purple structural colors. It was found that the photonic band gap value was red-shifted by Ce doping in the coating while blue-shifting by Eu doping.

KW - 3-D photonic crystal

KW - Cerium

KW - Europium

KW - Inverse opal

KW - Structural color

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ER -

Structurally colored silica photonic crystal coatings modified by Ce or Eu rare-earth dopants

Abstract

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Keywords

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