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Amara N, Martin A, Potdevin A, Réveret F, Riassetto D, Chadeyron G, Langlet M. Nanostructuration of YAG:Ce Coatings by ZnO Nanowires: A Smart Way to Enhance Light Extraction Efficiency. NANOMATERIALS 2022; 12:nano12152568. [PMID: 35893536 PMCID: PMC9332156 DOI: 10.3390/nano12152568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/10/2022] [Accepted: 07/23/2022] [Indexed: 02/05/2023]
Abstract
In this study, we report on the enhancement of the light extraction efficiency of sol-gel-derived Y3Al5O12:Ce3+ (YAG:Ce) coatings using ZnO nanowire (NW) arrays. The ZnO NWs were grown by hydrothermal synthesis from a ZnO seed layer directly deposited on a YAG:Ce coating. Highly dense and vertically aligned ZnO NW arrays were evidenced on the top of the YAG:Ce coating by electron microscopy. A photoluminescence study showed that this original design leads to a different angular distribution of light together with an increase in emission efficiency of the YAG:Ce coating upon blue excitation, up to 60% more efficient compared to a non-structured YAG:Ce coating (without NWs). These improvements are ascribed to multi-scattering events for photons within the structure, allowing them to escape from the phosphor layer by taking optical paths different from those of the non-structured coating. This strategy of light extraction enhancement appears to be very promising, since it uses soft chemical processes and cheap ZnO NWs and is applicable to any sol-gel-derived luminescent coating.
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Affiliation(s)
- Nehed Amara
- CNRS, Grenoble INP, LMGP, Institute of Engineering, Université Grenoble Alpes, 38000 Grenoble, France; (N.A.); (A.M.); (D.R.)
- CNRS, Clermont Auvergne INP, ICCF, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (F.R.); (G.C.)
| | - Aubry Martin
- CNRS, Grenoble INP, LMGP, Institute of Engineering, Université Grenoble Alpes, 38000 Grenoble, France; (N.A.); (A.M.); (D.R.)
- CNRS, Clermont Auvergne INP, ICCF, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (F.R.); (G.C.)
| | - Audrey Potdevin
- CNRS, Clermont Auvergne INP, ICCF, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (F.R.); (G.C.)
- Correspondence: (A.P.); (M.L.)
| | - François Réveret
- CNRS, Clermont Auvergne INP, ICCF, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (F.R.); (G.C.)
| | - David Riassetto
- CNRS, Grenoble INP, LMGP, Institute of Engineering, Université Grenoble Alpes, 38000 Grenoble, France; (N.A.); (A.M.); (D.R.)
| | - Geneviève Chadeyron
- CNRS, Clermont Auvergne INP, ICCF, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France; (F.R.); (G.C.)
| | - Michel Langlet
- CNRS, Grenoble INP, LMGP, Institute of Engineering, Université Grenoble Alpes, 38000 Grenoble, France; (N.A.); (A.M.); (D.R.)
- Correspondence: (A.P.); (M.L.)
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Burmistrov DE, Yanykin DV, Paskhin MO, Nagaev EV, Efimov AD, Kaziev AV, Ageychenkov DG, Gudkov SV. Additive Production of a Material Based on an Acrylic Polymer with a Nanoscale Layer of Zno Nanorods Deposited Using a Direct Current Magnetron Discharge: Morphology, Photoconversion Properties, and Biosafety. MATERIALS 2021; 14:ma14216586. [PMID: 34772111 PMCID: PMC8585381 DOI: 10.3390/ma14216586] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 01/31/2023]
Abstract
On the basis of a direct current magnetron, a technology has been developed for producing nanoscale-oriented nanorods from zinc oxide on an acrylic polymer. The technology makes it possible to achieve different filling of the surface with zinc oxide nanorods. The nanorods is partially fused into the polymer; the cross section of the nanorods is rather close to an elongated ellipse. It is shown that, with intense abrasion, no delamination of the nanorods from the acrylic polymer is observed. The zinc oxide nanorods abrades together with the acrylic polymer. Zinc oxide nanorods luminesces with the wavelength most preferable for the process of photosynthesis in higher plants. It was shown that plants grown under the obtained material grow faster and gain biomass faster than the control group. In addition, it was found that on surfaces containing zinc oxide nanorods, a more intense formation of such reactive oxygen species as hydrogen peroxide and hydroxyl radical is observed. Intensive formation of long-lived, active forms of the protein is observed on the zinc oxide coating. The formation of 8-oxoguanine in DNA in vitro on a zinc oxide coating was shown using ELISA method. It was found that the multiplication of microorganisms on the developed material is significantly hampered. At the same time, eukaryotic cells of animals grow and develop without hindrance. Thus, the material we have obtained can be used in photonics (photoconversion material for greenhouses, housings for LEDs), and it is also an affordable and non-toxic nanomaterial for creating antibacterial coatings.
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Affiliation(s)
- Dmitry E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Denis V. Yanykin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Mark O. Paskhin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Egor V. Nagaev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Alexey D. Efimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
| | - Andrey V. Kaziev
- Moscow Engineering Physics Institute, National Research Nuclear University MEPhI, Kashirskoe Sh. 31, 115409 Moscow, Russia; (A.V.K.); (D.G.A.)
| | - Dmitry G. Ageychenkov
- Moscow Engineering Physics Institute, National Research Nuclear University MEPhI, Kashirskoe Sh. 31, 115409 Moscow, Russia; (A.V.K.); (D.G.A.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia; (D.E.B.); (D.V.Y.); (M.O.P.); (E.V.N.); (A.D.E.)
- Correspondence:
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Shishino K, Yamada T, Fujisawa K, Ikeda M, Hirata H, Motoi M, Hatakeyama T, Teshima K. Growth manner of rod-shaped ZnO crystals at low temperature without any seed/buffer layer on a polyimide film. CrystEngComm 2021. [DOI: 10.1039/d0ce01729a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Recently, we fabricated a rod-shaped ZnO crystal layer directly on a polyimide substrate without any intermediate layer. In this study, we aimed to understand its fabrication mechanism.
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Affiliation(s)
- Kazuyuki Shishino
- Graduate School of Medicine
- Science and Technology
- Shinshu University
- Nagano 380-8553
- Japan
| | - Tetsuya Yamada
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
| | - Kazunori Fujisawa
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
| | - Munekazu Ikeda
- Research & Development Div
- Toray Engineering Co., Ltd
- Otsu
- Japan
| | - Hajime Hirata
- Research & Development Div
- Toray Engineering Co., Ltd
- Otsu
- Japan
| | - Masashi Motoi
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
- Development Team
| | - Tatsuo Hatakeyama
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
- Development Team
| | - Katsuya Teshima
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
- Department of Materials Chemistry
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Shishino K, Yamada T, Arai M, Ikeda M, Hirata H, Motoi M, Hatakeyama T, Teshima K. A strongly adhering ZnO crystal layer via a seed/buffer-free, low-temperature direct growth on a polyimide film via a solution process. CrystEngComm 2020. [DOI: 10.1039/d0ce00961j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We demonstrated direct growth of the ZnO crystal layer on a polyimide film without any seed/buffer layers.
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Affiliation(s)
- Kazuyuki Shishino
- Graduate School of Medicine
- Science and Technology
- Shinshu University
- Nagano 380-8553
- Japan
| | - Tetsuya Yamada
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
| | - Masao Arai
- Production Dept
- Production Team
- Raytech, INC
- Kawagoe-City
- Japan
| | - Munekazu Ikeda
- Research & Development Div
- Toray Engineering Co., Ltd
- Otsu
- Japan
| | - Hajime Hirata
- Research & Development Div
- Toray Engineering Co., Ltd
- Otsu
- Japan
| | - Masashi Motoi
- Development Team
- Business Div. II
- Mechatronics & Fine Technology Business Div
- Toray Engineering Co., Ltd
- Otsu
| | - Tatsuo Hatakeyama
- Development Team
- Business Div. I
- Mechatronics & Fine Technology Business Div
- Toray Engineering Co., Ltd
- Otsu
| | - Katsuya Teshima
- Research Initiative for Supra-Materials
- Shinshu University
- Nagano 380-8553
- Japan
- Department of Materials Chemistry
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Wang J, Ma J, Zhang J, Fan Y, Wang W, Sang J, Ma Z, Li H. Advanced Dynamic Photoluminescent Material for Dynamic Anticounterfeiting and Encryption. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35871-35878. [PMID: 31498589 DOI: 10.1021/acsami.9b10870] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Anticounterfeiting is a vitally important issue in modern society. At present, the most commonly used luminescent anticounterfeiting technique is based on static photoluminescence (PL), which is easily counterfeited by certain substitutes. In this work, we report for the first time a dynamic PL material, Na2CaGe2O6:Tb3+. Irradiated by a portable ultraviolet (254 nm) lamp, the PL color of the material due to Tb3+ changes from the initial red to yellow and, finally, green. The investigation reveals that the dynamic PL is due to the presence of appropriate traps and the cross-relaxation effect of Tb3+ in Na2CaGe2O6. By employing this unique dynamic PL material, high-level dynamic luminescent anticounterfeiting and encryption devices can be fabricated. The dynamic PL features of the devices are easily detected using a cheap portable lamp, and at present, it is impossible for the features to be faked by any substitutes. In a virtual military scenario, the results demonstrate that the encryption device is safe and that a spy will be detected. Accordingly, this dynamic PL material could inspire more ingenious security designs.
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Affiliation(s)
- Jia Wang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Jun Ma
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Jiachi Zhang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Yu Fan
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Wenxiang Wang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Jika Sang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Zhidong Ma
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Huihui Li
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
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Zhuo N, Zhang N, Chen P, Wang H. Enhancement of efficiency and CCT uniformity for red phosphor thin films, red LEDs and laminated white LEDs based on near-ultraviolet LEDs using MgO nanoparticles. RSC Adv 2019; 9:28291-28298. [PMID: 35530453 PMCID: PMC9071044 DOI: 10.1039/c9ra06069c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 08/26/2019] [Indexed: 12/22/2022] Open
Abstract
Red phosphor thin films (PTFs) with different MgO nanoparticle concentrations for near-ultraviolet (NUV) LEDs were prepared based on their strong scattering effect; red LEDs and laminated white LEDs were packaged further. SEM and XRD showed that CaAlSiN3:Eu2+ (CASN) and MgO nanoparticles were uniformly distributed in silicone resin and their crystal structure remained unchanged. The phosphor conversion efficiency (PCE) had a maximum value of 83.15% when the MgO nanoparticle concentration was 15 wt%. An increase of concentration can improve the spatial distribution uniformity of photonics for 410 nm, 627 nm and 660 nm. Fluorescence lifetime showed that the value is positively correlated with concentration change. The packaged red LED luminous flux reaches a maximum of 20.337 lm at a concentration of 15 wt%. The laminated white LED showed that the MgO nanoparticle concentration can be used to adjust the correlated color temperature (CCT) from 4322 K to 1987 K. Under similar CCT, the red phosphor concentration is only 1.83 wt%, the dosage is reduced by 56.12%, and the corresponding luminous efficiency of radiation (LER) and luminous efficiency (LE) are 296.03 lm W−1 and 73.72 lm W−1 respectively. The increase was 11.42%, the decrease was 10.14%, the color rendering index (CRI) increased from 90.6 to 91.8, and CCT uniformity increased from 82.04% to 89.27% with an increase of 8.81%. Research shows that MgO nanoparticles have potential application value in the preparation of high-quality white LEDs. Red phosphor thin films (PTFs) with different MgO nanoparticle concentrations for near-ultraviolet (NUV) LEDs were prepared based on their strong scattering effect; red LEDs and laminated white LEDs were packaged further.![]()
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Affiliation(s)
- Ningze Zhuo
- School of Electronic Science and Engineering, Nanjing University Nanjing 210093 China .,Institute of Optoelectronic Materials of Light Industry Nanjing 210015 China .,Research Institute of Electric Light Source Materials, Nanjing Tech University Nanjing 210015 China
| | - Na Zhang
- Institute of Optoelectronic Materials of Light Industry Nanjing 210015 China .,Research Institute of Electric Light Source Materials, Nanjing Tech University Nanjing 210015 China
| | - Peng Chen
- School of Electronic Science and Engineering, Nanjing University Nanjing 210093 China
| | - Haibo Wang
- Institute of Optoelectronic Materials of Light Industry Nanjing 210015 China .,Research Institute of Electric Light Source Materials, Nanjing Tech University Nanjing 210015 China
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Zhang YH, Li YL, Gong FL, Xie KF, Zhang HL, Fang SM. Double-platelet Pd@ZnO microcrystals for NO2 chemical sensors: their facile synthesis and DFT investigation. Phys Chem Chem Phys 2019; 21:22039-22047. [DOI: 10.1039/c9cp04242c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The growth and evolution processes of double-platelet, single-platelet and spherical ZnO microcrystallines are investigated.
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Affiliation(s)
- Yong-Hui Zhang
- College of Materials and Chemical Engineering
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Yu-Liang Li
- College of Materials and Chemical Engineering
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Fei-Long Gong
- College of Materials and Chemical Engineering
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Ke-Fei Xie
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou
- P. R. China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)
- Key Laboratory of Special Function Materials and Structure Design (MOE)
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Shao-Ming Fang
- College of Materials and Chemical Engineering
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
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