Showing 8,281 - 8,295 results of 8,295 for search '"photoluminescence"', query time: 0.18s Refine Results
  1. 8281

    Efficient Up-Conversion ZnO Co-Doped (Er, Yb) Nanopowders Synthesized via the Sol-Gel Process for Photovoltaic Applications by Marwa Derouiche, Rached Salhi, Samir Baklouti

    Published 2022-11-01
    “…The effects of the Yb concentration on the structural, morphological, photoluminescent, and electrical properties of the ZnO nanopowders were investigated. …”
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    Article
  2. 8282
  3. 8283

    Green and sustainable tapioca-derived carbon dots immobilised on screen printed electrode for detection of heavy metals using electrochemical method by Pudza, Musa Yahaya

    Published 2020
    “…Herein, CDs were synthesized from tapioca by a hydrothermal process based on Photoluminescent quantum yield (PLQY). Variables such as temperature, dosage, time, and amount of solvent were explored. …”
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    Thesis
  4. 8284

    Composition and Surface Optical Properties of GaSe:Eu Crystals before and after Heat Treatment by Veaceslav Sprincean, Haoyi Qiu, Tim Tjardts, Oleg Lupan, Dumitru Untilă, Cenk Aktas, Rainer Adelung, Liviu Leontie, Aurelian Carlescu, Silviu Gurlui, Mihail Caraman

    Published 2024-01-01
    “…This work studies the technological preparation conditions, morphology, structural characteristics and elemental composition, and optical and photoluminescent properties of GaSe single crystals and Eu-doped <i>β</i>–Ga<sub>2</sub>O<sub>3</sub> nanoformations on <i>ε</i>–GaSe:Eu single crystal substrate, obtained by heat treatment at 750–900 °C, with a duration from 30 min to 12 h, in water vapor-enriched atmosphere, of GaSe plates doped with 0.02–3.00 at. % Eu. …”
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    Article
  5. 8285

    Effects of cobalt doping on structural, morphological, and optical properties of Zn2SiO4 nanophosphors prepared by sol-gel method by Norhafizah Mohd Rasdi, Yap Wing Fen, Nur Alia Sheh Omar, Raba'ah Syahidah Azis, Mohd Hafiz Mohd Zaid

    Published 2017-01-01
    “…Keywords: Cobalt (II) doped zinc silicate, Transition metal, Sol-gel method, Nanophosphors, Photoluminescence…”
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    Article
  6. 8286

    Mono- and Mixed Metal Complexes of Eu<sup>3+</sup>, Gd<sup>3+</sup>, and Tb<sup>3+</sup> with a Diketone, Bearing Pyrazole Moiety and CHF<sub>2</sub>-Group: Structure, Color Tuning... by Victoria E. Gontcharenko, Mikhail A. Kiskin, Vladimir D. Dolzhenko, Vladislav M. Korshunov, Ilya V. Taydakov, Yury A. Belousov

    Published 2021-05-01
    “…Three novel lanthanide complexes with the ligand 4,4-difluoro-1-(1,5-dimethyl-1H-pyrazol-4-yl)butane-1,3-dione (HL), namely [LnL<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>], Ln = Eu, Gd and Tb, were synthesized, and, according to single-crystal X-ray diffraction, are isostructural. The photoluminescent properties of these compounds, as well as of three series of mixed metal complexes [Eu<sub>x</sub>Tb<sub>1-x</sub>L<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] (Eu<sub>x</sub>Tb<sub>1-x</sub>L<sub>3</sub>), [EuxGd<sub>1-x</sub>L<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] (Eu<sub>x</sub>Gd<sub>1-x</sub>L<sub>3</sub>), and [Gd<sub>x</sub>Tb<sub>1-x</sub>L<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] (Gd<sub>x</sub>Tb<sub>1-x</sub>L<sub>3</sub>), were studied. …”
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  7. 8287

    Preparation and Characterization of Developed Cu<sub>x</sub>Sn<sub>1−x</sub>O<sub>2</sub> Nanocomposite and Its Promising Methane Gas Sensing Properties by Nagih M. Shaalan, Dalia Hamad, Abdullah Aljaafari, Atta Y. Abdel-Latief, Mostafa A. Abdel-Rahim

    Published 2019-05-01
    “…The formation of Cu&#8211;SnO<sub>2</sub> or CuO phases at low and high concentrations was also observed by photoluminescent spectra. Here, only the emission peak of SnO<sub>2</sub> with a slight blueshift was recorded at low concentrations, while only the CuO emission peak was recorded at high concentration. …”
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    Article
  8. 8288

    A Novel Polymethyl Methacrylate Derivative Grafted with Cationic Iridium(III) Complex Units: Synthesis and Application in White Light-Emitting Diodes by Huaijun Tang, Xueyan Dong, Mingxian Chen, Qiuhong Chen, Mengran Ren, Kaimin Wang, Qiang Zhou, Zhengliang Wang

    Published 2019-03-01
    “…With the temperature increasing from 20 to 100 &deg;C, its photoluminescent intensity decreased to 76.8% with thermal quenching activation energy (Ea) of 0.2775 eV. …”
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    Article
  9. 8289

    Tuning of Luminescent and Magnetic Properties via Metal Doping of Zn-BTC Systems by Taoguang Qu, Qiang Wei, Carlos Ordonez, Jennifer Lindline, Michael Petronis, Marina S. Fonari, Tatiana Timofeeva

    Published 2018-04-01
    “…Thermal Gravimetric Analysis (TGA) of these compounds also revealed that all MOFs had similar stability up to ~450 °C. Solid state photoluminescent studies indicated that {Zn-Mn-BTC}{Me2NH2+}, {Zn-Cd-BTC}{Me2NH2+}, and {Zn-Ca-BTC}{Me2NH2+} had a significant red shifting effect compared to the original {Zn-BTC}{Me2NH2+} MOF. …”
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    Article
  10. 8290

    Physical–Chemical Properties of Biogenic Selenium Nanostructures Produced by Stenotrophomonas maltophilia SeITE02 and Ochrobactrum sp. MPV1 by Elena Piacenza, Elena Piacenza, Alessandro Presentato, Emmanuele Ambrosi, Adolfo Speghini, Raymond J. Turner, Giovanni Vallini, Silvia Lampis

    Published 2018-12-01
    “…Finally, the biogenic SeNS extracts were photoluminescent upon excitation ranging from 380 to 530 nm, whose degree of fluorescence emission (λem = 416–640 nm) was comparable to that from chemically synthesized SeNPs with L-cysteine (L-cys SeNPs). …”
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    Article
  11. 8291

    Synthesis, Property Characterization and Photocatalytic Activity of the Ag<sub>3</sub>PO<sub>4</sub>/Gd<sub>2</sub>BiTaO<sub>7</sub> Heterojunction Catalyst under Visible Light Irr... by Jingfei Luan, Zhijie Wei, Bowen Niu, Guangmin Yang, Cisheng Huang, Bingbing Ma, Wenlu Liu

    Published 2021-12-01
    “…The subsequent research of thin-film plating of the heterojunction catalysts and the construction of complete photoluminescent thin-film catalytic reaction systems, which utilized visible light irradiation, could provide new technologies and perspectives for the pharmaceutical wastewater treatment industry.…”
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  12. 8292
  13. 8293

    Investigation into multifunctional nanoparticles for the detection, imaging and intervention of amyloid by Xia, Yang

    Published 2019
    “…C-dots are quantum sized (<10 nm) photoluminescent (PL) carbon particles. Bottom-up synthesized C-dots were prepared by hydrothermal pyrolysis of sucrose. …”
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    Thesis
  14. 8294

    Exploring Ln(III)-Ion-Based Luminescent Species as Down-Shifters for Photovoltaic Solar Cells by Gabriela Brito-Santos, Cecilio Hernández-Rodríguez, Beatriz Gil-Hernández, Joaquín Sanchiz, Inocencio R. Martín, Benjamín González-Díaz, Ricardo Guerrero-Lemus

    Published 2023-07-01
    “…Most of the complexes were characterized using X-ray techniques, and their photoluminescent properties were studied. We then assessed the impact of complexes in the C1–6 and C12–17 series on the EQE of PV mini-modules and examined the durability of one of the complexes (C6) in a climate chamber when embedded in PMMA and EVA films. …”
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    Article
  15. 8295

    Development of luminescent europium-based phosphor films by Chong, Mun Kit

    Published 2010
    “…It has been found that annealing in the rapid thermal processor (RTP) and in vacuum environment is more efficient than that in oxygen and nitrogen atmosphere to eliminate H2O impurities and hence yields the Y2O3:Eu3+ phosphor films with higher photoluminescent (PL) intensity at wavelength of about 613nm (5D0-7F2 emission transition). …”
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    Thesis