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Lohitha T, Albert HM. Biosynthesis, Structural, Spectroscopic, Photoluminescence, and Antifungal Activity of Ni-doped CeO 2 Nanoparticles. J Fluoresc 2024:10.1007/s10895-024-03831-5. [PMID: 38958905 DOI: 10.1007/s10895-024-03831-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 06/25/2024] [Indexed: 07/04/2024]
Abstract
Pedalium Murex leaf extract was used in this study to create Nickel-doped Cerium oxide (Ni-CeO2) nanoparticles at 3 mol% and 5 mol% molar concentrations. The biosynthesized process was applied for the fabrication of Ni-CeO2 NPs. The X-ray diffraction method was used to identify their crystal structure. The XRD measurements showed that the Ni-CeO2 NPs crystallized into the face-centred cubic system. Fourier transform infrared spectral study was applied to explore the molecular vibrations and chemical bonding. The surface texture and chemical ingredients of Ni-CeO2 NPs were studied using field-emission scanning electron microscopy and energy-dispersive X-ray analysis. The EDX mapping spectra illustrate the uniform dispersal of Ce, Ni, and O atoms over the sample's surface. X-ray photoelectron spectroscopy (XPS) was conducted to confirm the chemical state of the Ni-CeO2 NPs. UV-Vis spectrum study was performed to ascertain the photon absorption, bandgap, and Urbach edge of Ni-CeO2 NPs. Photoluminescence (PL) research has been used to study the light-emitting characteristic of Ni-CeO2 NPs. The emissive intensity transition corresponding to Ni-CeO2 NPs was found to increase with the dopant level. The CIE 1931 chromaticity map was plotted to find the aptness of the samples for optical uses. The antifungal ability of Ni-CeO2 NPs was evaluated against the fungi candida albicans and candida krusein with the agar well-diffusion process. The fungicidal activity of the 3 mol% Ni doped CeO2 nanoparticles has shown a maximum zone of inhibition. The experimental findings illustrate the utility of Ni-CeO2 NPs for optical and antifungal applications.
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Affiliation(s)
- T Lohitha
- Department of Physics, Sathyabama Institute of Science & Technology, Chennai, 600119, India
| | - Helen Merina Albert
- Department of Physics, Sathyabama Institute of Science & Technology, Chennai, 600119, India.
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Suchitra JP, Rhoda JC, Bharathi Devi V, Divya P, Albert HM. Synthesis, Structural, and Optical Properties of 2-(2-methyl 8-hydroxyquinoline) Magnesium Nanorods for Optical Display Systems. J Fluoresc 2024:10.1007/s10895-024-03724-7. [PMID: 38625575 DOI: 10.1007/s10895-024-03724-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/08/2024] [Indexed: 04/17/2024]
Abstract
Organic semiconductors find widespread applications in the realm of organic light-emitting diodes (OLEDs) as well as organic photovoltaic cells. In the domain of OLED devices, it is plausible for nano-based Mg metal complexes to play a role as electron and hole-transport layers. In the present investigation, we synthesized 2(2-methyl 8-hydroxyquinoline) magnesium [Mg(mq)2] nanorods through the employment of the precipitation method, using 2-methyl 8- hydroxyquinoline and magnesium acetate. We employed various techniques to characterize the Mg(mq)2 nanorods, including powder XRD, FTIR spectroscopy, SEM, EDX, UV-Vis, and PL spectroscopy studies. The structural aspects of Mg(mq)2 were ascertained through P-XRD analysis. The elemental composition of Mg(mq)2 and its surface texture were established via EDX and HR-SEM analyses. FTIR spectroscopy confirmed the existence of functional groups within the sample. UV-Vis spectroscopy was utilized to evaluate the optical absorbance, bandgap, and Urbach energy of Mg(mq)2. The luminescence properties of the Mg(mq)2 nanorods were determined from the photoluminescence study. The characterization results were compared with the Zn(mq)2 nano samples. The experimental results presented herein serve to demonstrate the practicality of employing Mg(mq)2 nanorods in OLED devices.
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Affiliation(s)
- J P Suchitra
- Department of Physics, Dr. M.G.R. Educational and Research Institute, Chennai, India
| | - J Christina Rhoda
- Department of Medical Laboratory Technology, Apollo Institute of Hospital Management and Allied Sciences, Ayanambakkam, Chennai, India
| | - V Bharathi Devi
- Department of Physics, Dr. M.G.R. Educational and Research Institute, Chennai, India
| | - P Divya
- Department of Physics, S.A. Engineering College, Thiruverkadu, Chennai, India
| | - Helen Merina Albert
- Department of Physics, Sathyabama Institute of Science and Technology, Chennai, India.
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Sun R, Xiao YQ, Hu CX, Shang P, Wang JP, Jiang XF. The Synthesis and Photocatalytic Property of Cuprous Iodide-based Coordination Polymer. CHEM LETT 2022. [DOI: 10.1246/cl.220300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rui Sun
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei, 430062, P. R. China
| | - Yu-Qing Xiao
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei, 430062, P. R. China
| | - Chu-Xing Hu
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei, 430062, P. R. China
| | - Ping Shang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei, 430062, P. R. China
| | - Ju-Ping Wang
- Hubei Key Laboratory of Processing and Application of Catalytic materials, Huanggang Normal University, Huanggang, Hubei, 438000, P. R. China
| | - Xuan-Feng Jiang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, Wuhan, Hubei, 430062, P. R. China
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Zhaxi W, Li M, Wu J, Liu L, Huang Z, Miao H, Ma X, Jiang S, Zhang Q, Huang W, Wu D. A Red-Emitting Cu(I)–Halide Cluster Phosphor with Near-Unity Photoluminescence Efficiency for High-Power wLED Applications. Molecules 2022; 27:molecules27144441. [PMID: 35889315 PMCID: PMC9318059 DOI: 10.3390/molecules27144441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 01/27/2023] Open
Abstract
Solid-state lighting technology, where light-emitting diodes (LEDs) are used for energy conversion from electricity to light, is considered a next-generation lighting technology. One of the significant challenges in the field is the synthesis of high-efficiency phosphors for designing phosphor-converted white LEDs under high flux operating currents. Here, we reported the synthesis, structure, and photophysical properties of a tetranuclear Cu(I)–halide cluster phosphor, [bppmCu2I2]2 (bppm = bisdiphenylphosphinemethane), for the fabrication of high-performance white LEDs. The PL investigations demonstrated that the red emission exhibits a near-unity photoluminescence quantum yield at room temperature and unusual spectral broadening with increasing temperature in the crystalline state. Considering the excellent photophysical properties, the crystalline sample of [bppmCu2I2]2 was successfully applied for the fabrication of phosphor-converted white LEDs. The prototype white LED device exhibited a continuous rise in brightness in the range of a high bias current (100–1000 mA) with CRI as high as 84 and CCT of 5828 K, implying great potential for high-quality white LEDs.
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Affiliation(s)
- Wenjiang Zhaxi
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Miao Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Jing Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Luying Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Zetao Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Huixian Miao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Xiao Ma
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
| | - Shenlong Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China; (S.J.); (Q.Z.)
| | - Qun Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei 230026, China; (S.J.); (Q.Z.)
| | - Wei Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
- Correspondence: (W.H.); (D.W.)
| | - Dayu Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; (W.Z.); (M.L.); (J.W.); (L.L.); (Z.H.); (H.M.); (X.M.)
- Correspondence: (W.H.); (D.W.)
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Zheng D, Huang TH, Luo C, Tang J. Structural characterization, DFT studies and luminescent properties of dinuclear copper(I)-diimine complexes with the S-shape configurations. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120639] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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