Preparation and luminescent properties of Eu-doped BaTiO<sub>3</sub> thin films by sol–gel process

Li, Juan; Kuwabara, Makoto

doi:10.1016/s1468-6996(03)00027-5

Cited by 63 publications

(7 citation statements)

References 26 publications

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“…Other than that, from Figure 5, it was also observed that the emission peak intensity increased as the sintering temperature increased. This increment occurred as a result from the improvement of the crystallinity inside the zinc silicate glass and glass-ceramics sample [30]. When heat is applied to the zinc silicate sample, this will cause changes in the donor and the acceptor levels of the electron, in which it is interrelated with the number of electronic defects.…”

Section: Discussionmentioning

confidence: 99%

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

et al. 2020

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For the very first time, a study on the crystallization growth of zinc silicate glass and glass-ceramics was done, in which white rice husk ash (WRHA) was used as the silicon source. In this study, zinc silicate glass was fabricated by using melt–quenching methods based on the composition (ZnO)0.55(WRHA)0.45, where zinc oxide (ZnO) and white rice husk ash were used as the raw materials. The control crystallization technique was used in which the sample was sintered at 700–950 °C; then, the physical, structural, and optical properties of the glass and glass-ceramics were investigated by using a densitometer, linear shrinkage, X-ray diffraction (XRD), Fourier transform infrared radiation (FTIR), field-emission scanning electron microscopy (FESEM), and photoluminescence spectroscopy (PL). The density and linear shrinkage increased as the crystallinity increased and the XRD results showed the progression of the crystal formation, in which the sample was still in an amorphous state at 27 °C and 700 °C; the crystalline phase started at 750 °C. Based on the FTIR spectra, all samples showed sharpened absorption bands as the sintering temperature was increased, and the FESEM image showed the progression of crystal growth, indicating the formation of zinc silicate glass-ceramics. Lastly, the PL spectra emitted three emission peaks, at 529, 570, and 682 nm for the green, yellow, and red emission, respectively.

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Section: Discussionmentioning

confidence: 99%

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

et al. 2020

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“…The emission spectra emitted at heat treatments of 700, 800 and 900 • C show that the intensity of the emission is increased with the increase of heat-treatment temperatures. This is because of the improvement in crystallinity inside the sample as the heat-treatment temperature progresses [41]. Moreover, the intensity variation depends on some aspects, which include the structural modification of glass matrix, the amount of the luminescent ions and the wavelength of the excitation source used [42].…”

Section: Photoluminescence Analysismentioning

confidence: 99%

Phase Transformation, Optical and Emission Performance of Zinc Silicate Glass-Ceramics Phosphor Derived from the ZnO–B2O3–SLS Glass System

et al. 2020

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A new transparent zinc silicate glass-ceramic was derived from the 55ZnO–5B2O3–40SLS glass system via a controlled heat-treatment method. The precursor glass sample was placed through the heat-treatment process at different temperatures to study the progress in phase transformation, optical performance and emission intensity of the zinc silicate glass-ceramics. For this project, material characterization was measured through several tests using densimeter and linear shrinkage measurement, X-ray diffraction (XRD), Fourier transform infrared reflection (FTIR), ultraviolet–visible (UV–Vis) and photoluminescence (PL) spectroscopy. The density and linear shrinkage measurements show that the density of the particular glass-ceramic samples increases with the progression of heating temperature. The XRD analysis displays the result in which the zinc silicate crystal starts to grow after the sample was treated at 700 °C. In addition, the FTIR spectra indicated that the crystallization of the zinc silicate phase occurred with the appearance of SiO4, ZnO4 and Si-O-Zn bands. UV–visible exhibited the small changes when the value for the optical band gap decreased from 3.867 to 3.423 eV, influenced by the temperature applied to the sample. Furthermore, the PL spectroscopy showed an enhancement of broad green emission at 534 nm upon the increased heat-treatment temperature. Thus, it can be concluded there is the progression of crystal growth as the heat-treatment temperature increased; three emission peaks appeared at 529, 570 and 682 nm for the green, yellow and red emissions, respectively.

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“…1,2 Unlike the traditional Pb(Zr,Ti)O 3 (PZT), 3,4 which is toxic to the environment due to the presence of Pb, tetragonal Barium Titanate (BaTiO 3 or BT) is one of the most important green ferroelectric materials and has been extensively used in many areas such as biosensors, 5 bioimaging, 6,7 and thermistors 8 due to its unique ferroelectric, optical, piezoelectric, dielectric, and electrochemical properties. 9–14 BT crystals have five crystalline phases including rhombohedral, orthorhombic, tetragonal, cubic and hexagonal phases. Different phases of BT crystals have different applications based on their unique photo-refractive and electro-optical properties.…”

Section: Introductionmentioning

confidence: 99%

Identification of Novel Short BaTiO₃-Binding/Nucleating Peptides for Phage-Templated in Situ Synthesis of BaTiO₃ Polycrystalline Nanowires at Room Temperature

Cao

Yang

et al. 2016

ACS Appl. Mater. Interfaces

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Ferroelectric materials, such as tetragonal barium titanate (BaTiO3), have been widely used in a variety of areas including bioimaging, biosensing, and high power switching devices. However, conventional methods for the synthesis of tetragonal phase BaTiO3 usually require toxic organic reagents and high temperature treatments, and are thus not environment-friendly and energy-efficient. Here, we took advantage of the phage display technique to develop a novel strategy for the synthesis of BaTiO3 nanowires. We identified a short BaTiO3-binding/nucleating peptide, CRGATPMSC (named RS), from a phage-displayed random peptide library by biopanning technique and then genetically fused the peptide to the major coat protein (pVIII) of filamentous M13 phages to form the pVIII-RS phages. We found that the resultant phages could not only bind with the presynthesized BaTiO3 crystals but also induce the nucleation of uniform tetragonal BaTiO3 nanocrystals at room temperature and without the use of toxic reagents to form one-dimensional polycrystalline BaTiO3 nanowires. This approach enables the green synthesis of BaTiO3 polycrystalline nanowires with potential applications in bioimaging and biosensing fields.

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Preparation and luminescent properties of Eu-doped BaTiO₃ thin films by sol–gel process

Cited by 63 publications

References 26 publications

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

Phase Transformation, Optical and Emission Performance of Zinc Silicate Glass-Ceramics Phosphor Derived from the ZnO–B2O3–SLS Glass System

Identification of Novel Short BaTiO₃-Binding/Nucleating Peptides for Phage-Templated in Situ Synthesis of BaTiO₃ Polycrystalline Nanowires at Room Temperature

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Preparation and luminescent properties of Eu-doped BaTiO3 thin films by sol–gel process

Cited by 63 publications

References 26 publications

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

Phase Transformation, Optical and Emission Performance of Zinc Silicate Glass-Ceramics Phosphor Derived from the ZnO–B2O3–SLS Glass System

Identification of Novel Short BaTiO3-Binding/Nucleating Peptides for Phage-Templated in Situ Synthesis of BaTiO3 Polycrystalline Nanowires at Room Temperature

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Preparation and luminescent properties of Eu-doped BaTiO₃ thin films by sol–gel process

Identification of Novel Short BaTiO₃-Binding/Nucleating Peptides for Phage-Templated in Situ Synthesis of BaTiO₃ Polycrystalline Nanowires at Room Temperature