A new one-dimensional photonic crystal combination of TiO2/CuO for structural color applications

Dalmış, Ramazan; Keskin, Özgür Yasin; Azem, N. Funda Ak; Birlik, Işıl

doi:10.1016/j.ceramint.2019.07.119

Cited by 43 publications

(20 citation statements)

References 56 publications

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“…The development of materials dedicated to photonic applications is a frontier area of current materials engineering research [1,2]. Thus, considerable efforts are still being made to improve the optical parameters of such materials, e.g., the tuning of emissions in the desired spectrum range.…”

Section: Introductionmentioning

confidence: 99%

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

2020

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In the present work, the Tb3+/Eu3+ co-activated sol-gel glass-ceramic materials (GCs) containing MF3 (M = Y, La) nanocrystals were fabricated during controlled heat-treatment of silicate xerogels at 350 °C. The studies of Tb3+ → Eu3+ energy transfer process (ET) were performed by excitation and emission spectra along with luminescence decay analysis. The co-activated xerogels and GCs exhibit multicolor emission originated from 4fn–4fn optical transitions of Tb3+ (5D4 → 7FJ, J = 6–3) as well as Eu3+ ions (5D0 → 7FJ, J = 0–4). Based on recorded decay curves, it was found that there is a significant prolongation in luminescence lifetimes of the 5D4 (Tb3+) and the 5D0 (Eu3+) levels after the controlled heat-treatment of xerogels. Moreover, for both types of prepared GCs, an increase in ET efficiency was also observed (from ηET ≈ 16% for xerogels up to ηET = 37.3% for SiO2-YF3 GCs and ηET = 60.8% for SiO2-LaF3 GCs). The changes in photoluminescence behavior of rare-earth (RE3+) dopants clearly evidenced their partial segregation inside low-phonon energy fluoride environment. The obtained results suggest that prepared SiO2-MF3:Tb3+, Eu3+ GC materials could be considered for use as optical elements in RGB-lighting optoelectronic devices operating under near-ultraviolet (NUV) excitation.

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Section: Introductionmentioning

confidence: 99%

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

2020

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“…The TiO 2 pattern indicating amorphousness because it is very thin by coating. 31 However, the Nd diffraction peak was not obtained, which may be due to its unobvious crystal state.…”

Section: Xrd Characterizationmentioning

confidence: 98%

Antibacterial and ultraviolet protective neodymium-doped TiO₂ film coated on polypropylene nonwoven fabric via a sputtering method

Huang

Fan

et al. 2021

Journal of Engineered Fibers and Fabrics

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A neodymium-doped titanium dioxide film was coated on polypropylene nonwoven fabric via a magnetron sputtering method to prepare multifunctional textiles with antibacterial and ultraviolet protective properties. The antibacterial property of the single-layer titanium dioxide film coated sample was better than that of the single-layer neodymium film coated sample. And that of the three-layer film coated samples was better than that of the double-layer film coated samples, which the latter also was superior to that of the single-layer film coated samples. A longer deposition time of the titanium dioxide film increased the antibacterial rate. The hydrophilicity of the coated samples was improved by ultraviolet irradiation, which improves the catalytic antibacterial ability. The ultraviolet protective factor of the sample that absorbs more ultraviolet is higher, and the water contact angle after ultraviolet irradiation decreases. This improves antibacterial performance. A titanium dioxide film doped with neodymium was improved without any significant change to the morphology and luster of the samples. This can lead to further applications of the coated polypropylene non-woven fabric with good antibacterial properties.

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“…The most significant parameters for 1D PCs are refractive index (n) and extension coefficient (k) of the used materials in addition to the number of periods (N) [17]. The photonic bandgap (PBG) is an essential feature of PCs; electromagnetic modes cannot spread in the photonic bandgap region.…”

Section: Introductionmentioning

confidence: 99%

Salinity Sensor Based on 1D Photonic Crystals by Tamm Resonance with Different Geometrical Shapes

et al. 2021

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In this paper, we demonstrate a novel Salinity sensor based on Tamm-Plasmonpolariton (TPP), comprising of different shapes of Bragg reflector (ordinary, texturing, and Sawtooth) and metallic layer, is proposed. The finite element method is used to study the considered structure and sensing performance by using the COMSOL multiphysics simulation procedure. Here, we study the effect of surface morphology on the sensitivity; firstly, in the case of one-dimensional photonic crystals centered defect, it has a negative effect on the sensitivity, secondly, texturing and sawtooth in the case of Tamm resonance is increase the sensitivity as For texturing the surface, the sensitivity ( ) = 569 / , quality factor (Q)=236, and figure of merit (FOM) =170 −1 . While, for Sawtooth surfaces, = 612.29 / , Q =272.4, and FOM =199 −1 . The consequences of structural parameters on the efficiency of sensing are studied and new procedures are proposed to enhance TPP-based sensors. A simple and functional alternative to conventional salinity sensors may be the proposed solution.

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A new one-dimensional photonic crystal combination of TiO2/CuO for structural color applications

Cited by 43 publications

References 56 publications

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

Antibacterial and ultraviolet protective neodymium-doped TiO₂ film coated on polypropylene nonwoven fabric via a sputtering method

Salinity Sensor Based on 1D Photonic Crystals by Tamm Resonance with Different Geometrical Shapes

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A new one-dimensional photonic crystal combination of TiO2/CuO for structural color applications

Cited by 43 publications

References 56 publications

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

Antibacterial and ultraviolet protective neodymium-doped TiO2 film coated on polypropylene nonwoven fabric via a sputtering method

Salinity Sensor Based on 1D Photonic Crystals by Tamm Resonance with Different Geometrical Shapes

Contact Info

Product

Resources

About

Antibacterial and ultraviolet protective neodymium-doped TiO₂ film coated on polypropylene nonwoven fabric via a sputtering method