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Picuntureo M, García-Merino JA, Villarroel R, Hevia SA. The Synthesis of Sponge-like V 2O 5/CNT Hybrid Nanostructures Using Vertically Aligned CNTs as Templates. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:211. [PMID: 38251174 PMCID: PMC10820936 DOI: 10.3390/nano14020211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/11/2024] [Accepted: 01/16/2024] [Indexed: 01/23/2024]
Abstract
The fabrication of sponge-like vanadium pentoxide (V2O5) nanostructures using vertically aligned carbon nanotubes (VACNTs) as a template is presented. The VACNTs were grown on silicon substrates by chemical vapor deposition using the Fe/Al bilayer catalyst approach. The V2O5 nanostructures were obtained from the thermal oxidation of metallic vanadium deposited on the VACNTs. Different oxidation temperatures and vanadium thicknesses were used to study the influence of these parameters on the stability of the carbon template and the formation of the V2O5 nanostructures. The morphology of the samples was analyzed by scanning electron microscopy, and the structural characterization was performed by Raman, energy-dispersive X-ray, and X-ray photoelectron spectroscopies. Due to the catalytic properties of V2O5 in the decomposition of carbonaceous materials, it was possible to obtain supported sponge-like structures based on V2O5/CNT composites, in which the CNTs exhibit an increase in their graphitization. The VACNTs can be removed or preserved by modulating the thermal oxidation process and the vanadium thickness.
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Affiliation(s)
- Matías Picuntureo
- Instituto de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 6904411, Chile;
- Centro de Investigación en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 6904411, Chile
| | - José Antonio García-Merino
- Departamento de Mecánica, Facultad de Ingeniería, Universidad Tecnológica Metropolitana, Av. José Pedro Alessandri 1242, Ñuñoa 7800003, Chile;
| | - Roberto Villarroel
- Departamento de Física, Facultad de Ciencias Naturales, Matemática y del Medio Ambiente, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa 7800003, Chile
| | - Samuel A. Hevia
- Instituto de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 6904411, Chile;
- Centro de Investigación en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 6904411, Chile
- Millennium Institute on Green Ammonia as Energy Vector—MIGA, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 6904411, Chile
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2
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Weerasinghe H, Kumarihamy M, Wu HF. Synthesis of 2D VO 2 Nanosheets for the Dual Optical Sensor Method by Colorimetric and Fluorometric Sensing of Catecholamines. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47921-47929. [PMID: 37797940 DOI: 10.1021/acsami.3c09586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
For the first time, we report a dual optical sensor method (DOSM) using novel 2D VO2 nanosheets to act as fluorometric and colorimetric sensors to perform quantitative analysis of epinephrine (EP) and dopamine (DA). The wide color spectrum of the 2D vanadium oxidation series and specifically metastable blue 2D VO2 nanosheets were used to develop a DOSM biosensor. DA and EP are the major catecholamines in the human body that play vital roles as neurotransmitters and stress-responsive hormones of the endocrine system, respectively. Accurate and selective detection of these biomolecules can assist in the diagnosis of many neuroendocrine system-related diseases. The newly synthesized 2D VO2 nanosheet sensor showed bluish-green fluorescence as the first-ever fluorescence from 2D VO2 nanosheets. This sensor showed dual-function sensing toward EP by a dominant color change and fluorescence quenching. It is capable of individually detecting and quantifying both EP and DA with high selectivity and sensitivity by using both colorimetry and fluorometry simultaneously, with the detection limits of 1.07 and 5.54 μM for colorimetric analysis, respectively, and 48.07 and 3.98 μM for fluorescence analysis, respectively. The DOSM sensor was directly applied to real urine samples and gained satisfactory recovery above 90% by means of spiked concentrations. This study has opened a new platform using the DOSM and the vanadium oxidation spectrum in a much more effective way for biosensing. The fluorescence capabilities of this metal oxide can be further applied to many sensor applications based on both fluorescence and colorimetric detection.
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Affiliation(s)
- Hemal Weerasinghe
- Department of Chemistry, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, Kaohsiung 80424, Taiwan
| | - Maheshika Kumarihamy
- Department of Chemistry, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, Kaohsiung 80424, Taiwan
| | - Hui-Fen Wu
- Department of Chemistry, National Sun Yat-Sen University, 70, Lien-Hai Road, Kaohsiung, Kaohsiung 80424, Taiwan
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- School of Medicine, College of Medicine, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Institute of Precision Medicine, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
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3
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Lin W, Tang C, Wang F, Zhu Y, Wang Z, Li Y, Wu Q, Lei S, Zhang Y, Hou J. Building Low-Cost, High-Performance Flexible Photodetector Based on Tetragonal Phase VO 2 (A) Nanorod Networks. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6688. [PMID: 37895670 PMCID: PMC10607982 DOI: 10.3390/ma16206688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/30/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023]
Abstract
We present a straightforward and cost-effective method for the fabrication of flexible photodetectors, utilizing tetragonal phase VO2 (A) nanorod (NR) networks. The devices exhibit exceptional photosensitivity, reproducibility, and stability in ambient conditions. With a 2.0 V bias voltage, the device demonstrates a photocurrent switching gain of 1982% and 282% under irradiation with light at wavelengths of 532 nm and 980 nm, respectively. The devices show a fast photoelectric response with rise times of 1.8 s and 1.9 s and decay times of 1.2 s and 1.7 s for light at wavelengths of 532 nm and 980 nm, respectively. In addition, the device demonstrates exceptional flexibility across large-angle bending and maintains excellent mechanical stability, even after undergoing numerous extreme bending cycles. We discuss the electron transport process within the nanorod networks, and propose a mechanism for the modulation of the barrier height induced by light. These characteristics reveal that the fabricated devices hold the potential to serve as a high-performance flexible photodetector.
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Affiliation(s)
- Wenhui Lin
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Chaoyang Tang
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Feiyu Wang
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Yiyu Zhu
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Zhen Wang
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Yifan Li
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Qiuqi Wu
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Shuguo Lei
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
| | - Yi Zhang
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jiwei Hou
- Department of Physics, School of Physical and Mathematical Science, Nanjing Tech University, Nanjing 211816, China; (W.L.); (C.T.); (F.W.); (Y.Z.); (Z.W.); (Y.L.); (Q.W.); (S.L.)
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4
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Laghaei M, Ghasemian M, Ferdowsi MRG, Schütz JA, Kong L. Enhanced pollutant photodegradation over nanoporous titanium-vanadium oxides with improved interfacial interactions. J Colloid Interface Sci 2023; 646:11-24. [PMID: 37178611 DOI: 10.1016/j.jcis.2023.04.180] [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: 02/16/2023] [Revised: 04/27/2023] [Accepted: 04/30/2023] [Indexed: 05/15/2023]
Abstract
This study addressed the separation problem of colloidal catalytic powder from its solution and pore blockage of traditional metallic oxides by fabricating nanoporous composites of titanium (Ti)-vanadium (V) oxide via magnetron sputtering, electrochemical anodization, and annealing processes. The effect of V-deposited loading on the composite semiconductors was investigated by varying V sputtering power (20-250 W) to correlate their physicochemical properties to the photodegradation performance of methylene blue. The obtained semiconductors revealed circular and elliptical pores (14-23 nm) and formed different metallic and metallic oxide crystalline phases. Within the nanoporous composite layer, V ions substituted Ti4+, leading to Ti3+ formation accompanied by decreased band gap values and higher visible-light absorption. Thus, the band gap of TiO2 was 3.15 eV, while that of Ti-V oxide with the maximum V content (at 250 W) was 2.47 eV. The interfacial separators between clusters in the mentioned composite created traps disrupting the charge carrier movements between crystallites, thereby decreasing the photoactivity. In contrast, the composite prepared with the minimum V content showed approximately 90% degradation efficiency under solar-simulated irradiation resulting from the homogeneous V dispersion and the lower recombination possibility, owing to its p-n heterojunction constituent. The nanoporous photocatalyst layers with their novel synthesis approach and outstanding performance can be applied in other environmental remediation applications.
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Affiliation(s)
- Milad Laghaei
- School of Engineering, Deakin University, Waurn Ponds, VIC 3216, Australia; Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia.
| | - Mohsen Ghasemian
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | | | - Jürg A Schütz
- Commonwealth Scientific and Industrial Research Organization (CSIRO), 75 Pigdons Road, Waurn Ponds, Vic 3216, Australia
| | - Lingxue Kong
- Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia.
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5
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Correal S, Hernández-Gómez D, Esquivel AS, Cardona-Rodríguez A, Reiber A, Hernandez Y, González-Hernández R, Ramírez JG. Tuning electronic and magnetic properties through disorder in V 2O 5 nanoparticles. Sci Rep 2023; 13:6752. [PMID: 37185779 PMCID: PMC10130179 DOI: 10.1038/s41598-023-32642-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/30/2023] [Indexed: 05/17/2023] Open
Abstract
We report on the synthesis and characterization of V2O5 nanoparticles grown using a sol-gel method at different calcination temperatures. We observed a surprising reduction in the optical band gap from 2.20 to 1.18 eV with increasing calcination temperature from 400 to 500 °C. Raman and X-Ray diffraction measurements indicated slight changes in the lattice parameters induced by the growth process. However, density functional theory calculations of the Rietveld-refined and pristine structures revealed that the observed optical gap reduction could not be explained by structural changes alone. By introducing oxygen vacancies to the refined structures, we could reproduce the reduction of the band gap. Our calculations also showed that the inclusion of oxygen vacancies at the vanadyl position creates a spin-polarized interband state that reduces the electronic band gap and promotes a magnetic response due to unpaired electrons. This prediction was confirmed by our magnetometry measurements, which exhibited a ferromagnetic-like behavior. Our findings suggest that oxygen vacancies play a crucial role in band gap reduction and the promotion of a ferromagnetic-like response in an otherwise paramagnetic material. This provides a promising route to engineer novel devices.
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Affiliation(s)
- Sergio Correal
- Department of Physics, Universidad de los Andes, Bogotá, 111711, Colombia
| | | | | | | | - Andreas Reiber
- Department of Chemistry, Universidad de los Andes, Bogotá, 111711, Colombia
| | - Yenny Hernandez
- Department of Physics, Universidad de los Andes, Bogotá, 111711, Colombia
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6
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Van Duy L, Nguyet TT, Le DTT, Van Duy N, Nguyen H, Biasioli F, Tonezzer M, Di Natale C, Hoa ND. Room Temperature Ammonia Gas Sensor Based on p-Type-like V 2O 5 Nanosheets towards Food Spoilage Monitoring. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:146. [PMID: 36616056 PMCID: PMC9823630 DOI: 10.3390/nano13010146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
Gas sensors play an important role in many areas of human life, including the monitoring of production processes, occupational safety, food quality assessment, and air pollution monitoring. Therefore, the need for gas sensors to monitor hazardous gases, such as ammonia, at low operating temperatures has become increasingly important in many fields. Sensitivity, selectivity, low cost, and ease of production are crucial characteristics for creating a capillary network of sensors for the protection of the environment and human health. However, developing gas sensors that are not only efficient but also small and inexpensive and therefore integrable into everyday life is a difficult challenge. In this paper, we report on a resistive sensor for ammonia detection based on thin V2O5 nanosheets operating at room temperature. The small thickness and porosity of the V2O5 nanosheets give the sensors good performance for sensing ammonia at room temperature (RT), with a relative change of resistance of 9.4% to 5 ppm ammonia (NH3) and an estimated detection limit of 0.4 ppm. The sensor is selective with respect to the seven interferents tested; it is repeatable and stable over the long term (four months). Although V2O5 is generally an n-type semiconductor, in this case the nanosheets show a p-type semiconductor behavior, and thus a possible sensing mechanism is proposed. The device's performance, along with its size, low cost, and low power consumption, makes it a good candidate for monitoring freshness and spoilage along the food supply chain.
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Affiliation(s)
- Lai Van Duy
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), No. 1, Dai Co Viet Street, Hanoi 10999, Vietnam
- Department of Electronic Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele All’Adige, Italy
| | - To Thi Nguyet
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), No. 1, Dai Co Viet Street, Hanoi 10999, Vietnam
| | - Dang Thi Thanh Le
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), No. 1, Dai Co Viet Street, Hanoi 10999, Vietnam
| | - Nguyen Van Duy
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), No. 1, Dai Co Viet Street, Hanoi 10999, Vietnam
| | - Hugo Nguyen
- Department of Materials Science and Engineering, Division of Microsystems Technology, Uppsala University, Lägerhyddsvägen, 1751 21 Uppsala, Sweden
| | - Franco Biasioli
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele All’Adige, Italy
| | - Matteo Tonezzer
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele All’Adige, Italy
- Department of Chemical and Geological Sciences, Università di Cagliari, Campus di Monserrato, 09042 Monserrato, Italy
- Center Agriculture Food Environment, University of Trento/Fondazione Edmund Mach, Via E. Mach 1, 38010 San Michele All’Adige, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
| | - Nguyen Duc Hoa
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST), No. 1, Dai Co Viet Street, Hanoi 10999, Vietnam
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7
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You J, Pan J, Shang SL, Xu X, Liu Z, Li J, Liu H, Kang T, Xu M, Li S, Kong D, Wang W, Gao Z, Zhou X, Zhai T, Liu ZK, Kim JK, Luo Z. Salt-Assisted Selective Growth of H-phase Monolayer VSe 2 with Apparent Hole Transport Behavior. NANO LETTERS 2022; 22:10167-10175. [PMID: 36475688 DOI: 10.1021/acs.nanolett.2c04133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Vanadium diselenide (VSe2) exhibits versatile electronic and magnetic properties in the trigonal prismatic (H-) and octahedral (T-) phases. Compared to the metallic T-phase, the H-phase with a tunable semiconductor property is predicted to be a ferrovalley material with spontaneous valley polarization. Herein we report an epitaxial growth of the monolayer 2D VSe2 on a mica substrate via the chemical vapor deposition (CVD) method by introducing salt in the precursor. Our first-principles calculations suggest that the monolayer H-phase VSe2 with a large lateral size is thermodynamically favorable. The honeycomb-like structure and the broken symmetry are directly observed by spherical aberration-corrected scanning transmission electron microscopy (STEM) and confirmed by giant second harmonic generation (SHG) intensity. The p-type transport behavior is further evidenced by the temperature-dependent resistance and field-effect device study. The present work introduces a new phase-stable 2D transition metal dichalcogenide, opening the prospect of novel electronic and spintronics device design.
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Affiliation(s)
- Jiawen You
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Jie Pan
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Shun-Li Shang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Xiang Xu
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan430074, P. R. China
| | - Zhenjing Liu
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Jingwei Li
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Hongwei Liu
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Ting Kang
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Mengyang Xu
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Shaobo Li
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
- State Key Laboratory of Luminescent Materials and Devices, Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Deqi Kong
- State Key Laboratory of Luminescent Materials and Devices, Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Wenliang Wang
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
- State Key Laboratory of Luminescent Materials and Devices, Department of Electronic Materials, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Zhaoli Gao
- Department of Biomedical Engineering, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong999777, P. R. China
- CUHK Shenzhen Research Institute, No.10, second, Yuexing Road, Nanshan, Shenzhen518057, P. R. China
| | - Xing Zhou
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan430074, P. R. China
| | - Tianyou Zhai
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan430074, P. R. China
| | - Zi-Kui Liu
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Jang-Kyo Kim
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong999777, P. R. China
- The Hong Kong University of Science and Technology Shenzhen Research Institute, No. 9 Yuexing first RD, South Area Hi-tech Park, Nanshan, Shenzhen518057, China
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8
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Wang S, Wu L, Zhang H, Wang Z, Qin Q, Wang X, Lu Y, Li L, Li M. Facile Synthesis of Two Dimensional (2D) V 2O 5 Nanosheets Film towards Photodetectors. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8313. [PMID: 36499812 PMCID: PMC9740591 DOI: 10.3390/ma15238313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Most of the studies focused on V2O5 have been devoted to obtaining specific morphology and microstructure for its intended applications. Two dimensional (2D) V2O5 has the most valuable structure because of its unique planar configuration that can offer more active sites. In this study, a bottom-up and low-cost method that is hydrothermal combined with spin-coating and subsequent annealing was developed to prepare 2D V2O5 nanosheets film on quartz substrate. First, VOOH nanosheets were prepared by the hydrothermal method using V2O5 powders and EG as raw materials. Further, V2O5 nanosheets with an average lateral size over 500 nm and thickness less than 10 nm can be prepared from the parent VOOH nanosheets by annealing at 350 °C for 15 min in air. The prepared V2O5 nanosheets film was assembled of multiple nanosheets. The structural, morphological, microstructural and optical properties of the films were respective investigated by XRD, SEM, TEM and UV-Vis. The photodetector based on V2O5 nanosheets film shows good photoresponse with a response time of 2.4 s and a recovery time of 4.7 s.
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Affiliation(s)
- Shaotian Wang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Liangfei Wu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Hui Zhang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Zihan Wang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Qinggang Qin
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Xi Wang
- State Key Laboratory of Pulsed Power Laser Technology, Anhui Laboratory of Advanced Laser Technology, Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, National University of Defense Technology, Hefei 230037, China
| | - Yuan Lu
- State Key Laboratory of Pulsed Power Laser Technology, Anhui Laboratory of Advanced Laser Technology, Infrared and Low Temperature Plasma Key Laboratory of Anhui Province, National University of Defense Technology, Hefei 230037, China
| | - Liang Li
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Ming Li
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
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9
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High-capacity three-dimensional solar rechargeable micro-supercapacitor using MnO2/V2O5-based binary metal oxide nanocomposite ink. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Mohan H, Vadivel S, Lee SW, Lim JM, Lovanh N, Park YJ, Shin T, Seralathan KK, Oh BT. Improved visible-light-driven photocatalytic removal of Bisphenol A using V 2O 5/WO 3 decorated over Zeolite: Degradation mechanism and toxicity. ENVIRONMENTAL RESEARCH 2022; 212:113136. [PMID: 35351453 DOI: 10.1016/j.envres.2022.113136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 03/01/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
WO3/Zeolite/V2O5 (TZV) composite synthesized through co-precipitation was used for the degradation of Bisphenol-A (BpA). XRD and Raman spectra were employed to ascertain the crystallinity of the composite. The pristine nature of the compound without any free particles over the zeolite surface was established through FESEM, thus, substantiating the composite character of the material. The enhancement in activity after doping with WO3 was ascertained by DRS-UV. Photocatalytic degradation studies clearly established the superiority of TZV 10 over bare V2O5. Complete BpA degradation (100%) was attained at 50 min of incubation with 0.75 g/L TZV-10 in acidic medium (pH 3) for an initial BpA concentration of 100 mg/L. HPLC-MS/MS analysis was used to decipher the degradation pathway. The catalyst was stable even after 9 cycles. Phytotoxicity studies and lake water treatment results proved the environmental efficiency of the synthesized material.
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Affiliation(s)
- Harshavardhan Mohan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea; Department of Chemistry, College of Natural Sciences, Jeonbuk National University, Jeonju, Jeonbuk, 54930, South Korea
| | - Sethumathavan Vadivel
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, 602105, India
| | - Se-Won Lee
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Jeong-Muk Lim
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Nanh Lovanh
- USDA-ARS, AWMRU, 230 Bennett Lane, Bowling Green, KY, 42104, USA
| | - Yool-Jin Park
- Department of Ecology Landscape Architecture-Design, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Taeho Shin
- Department of Chemistry, College of Natural Sciences, Jeonbuk National University, Jeonju, Jeonbuk, 54930, South Korea
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea.
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11
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Narayanan AP, Surendran KP. Acid polymerized V2O5-PANI aerogels with outstanding specific shielding effectiveness in X, Ku and K bands. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Choi YH. VO2 as a Highly Efficient Electrocatalyst for the Oxygen Evolution Reaction. NANOMATERIALS 2022; 12:nano12060939. [PMID: 35335752 PMCID: PMC8951100 DOI: 10.3390/nano12060939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/04/2022] [Accepted: 03/09/2022] [Indexed: 02/01/2023]
Abstract
Herein, we report high electrocatalytic activity of monoclinic VO2 (M1 phase) for the oxygen evolution reaction (OER) for the first time. The single-phase VO2 (M1) nanoparticles are prepared in the form of uniformly covering the surface of individual carbon fibers constituting a carbon fiber paper (CFP). The VO2 nanoparticles reveal the metal-insulator phase transition at ca. 65 °C (heating) and 62 °C (cooling) with low thermal hysteresis, indicating a high concentration of structural defect which is considered a grain boundary among VO2 nanoparticles with some particle coalescence. Consequently, the VO2/CFP shows a high electrocatalytic OER activity with the lowest η10 (350 mV) and Tafel slope (46 mV/dec) values in a 1 M aqueous solution of KOH as compared to those of the vacuum annealed V2O5 and the hydrothermally grown VO2 (M1), α-V2O5, and γ′-V2O5. The catalytically active site is considered V4+ components and V4+/5+ redox couples in VO2. The oxidation state of V4+ is revealed to be more favorable to the OER catalysis compared to that of V5+ in vanadium oxide through comparative studies. Furthermore, the amount of V5+ component is found to be increased on the surface of VO2 catalyst during the OER, giving rise to the performance degradation. This work suggests V4+ and its redox couple as a novel active component for the OER in metal-oxide electrocatalysts.
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Affiliation(s)
- Yun-Hyuk Choi
- School of Advanced Materials and Chemical Engineering, Daegu Catholic University, Gyeongsan 38430, Korea
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13
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Abdulrahman AF, Abd-Alghafour N. Synthesis and characterization of ZnO nanoflowers by using simple spray pyrolysis technique. SOLID-STATE ELECTRONICS 2022; 189:108225. [DOI: 10.1016/j.sse.2021.108225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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14
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Mustafa H, Yu Y, Zafar A, Liu Y, Karim S, Javed S, Mehboob S, Sun H, Hussain S, Shah AU, Hussain SZ, Safdar A, Nisar A, Ahmad M. MWCNT synergy for boosting the electrochemical kinetics of V2O5 cathode for lithium-ion batteries. NEW J CHEM 2022. [DOI: 10.1039/d1nj06245j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
V2O5/MWCNT hybrid system has been developed and investigated as cathode in LIBs. The developed electrode shows superior performance as compare to pristine V2O5 and V2O5/rGO hybrid structure due to the synergy between V2O5 and MWCNT.
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Affiliation(s)
- Hamna Mustafa
- Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad 44000, Pakistan
- School of Chemical and Materials Engineering, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Yanlong Yu
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, P. R. China
| | - Amina Zafar
- Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad 44000, Pakistan
- Central Analytical Facility Division, PINSTECH, Islamabad 44000, Pakistan
| | - Yanguo Liu
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, P. R. China
| | - Shafqat Karim
- Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Saqib Javed
- Theoretical Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | | | - Hongyu Sun
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, P. R. China
| | - Shafqat Hussain
- Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Atta Ullah Shah
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan
| | | | - Amna Safdar
- School of Chemical and Materials Engineering, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Amjad Nisar
- Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad 44000, Pakistan
| | - Mashkoor Ahmad
- Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad 44000, Pakistan
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15
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Shafiq I, Hussain M, Shafique S, Akhter P, Ahmed A, Ashraf RS, Ali Khan M, Jeon BH, Park YK. Systematic Assessment of Visible-Light-Driven Microspherical V 2O 5 Photocatalyst for the Removal of Hazardous Organosulfur Compounds from Diesel. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2908. [PMID: 34835672 PMCID: PMC8624679 DOI: 10.3390/nano11112908] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/22/2021] [Accepted: 10/28/2021] [Indexed: 11/17/2022]
Abstract
The organosulfur compounds present in liquid fuels are hazardous for health, asset, and the environment. The photocatalytic desulfurization technique works at ordinary conditions and removes the requirement of hydrogen, as it is an expensive gas, highly explosive, with a broader flammability range and is declared the most hazardous gas within a petroleum refinery, with respect to flammability. The projected work is based on the synthesis of V2O5 microspheres for photocatalytic oxidation for the straight-run diesel (SRD) and diesel oil blend (DOB). The physicochemical properties of V2O5 microspheres were examined by FT-IR, Raman, UV-vis DRS, SEM, and Photoluminescence evaluations. The as-synthesized photocatalyst presented a trivial unit size, a narrow bandgap, appropriate light-capturing capability, and sufficient active sites. The desulfurization study discovered that the anticipated technique is substantial in desulfurizing DOB up to 37% in 180 min using methanol as an interfacing agent. Furthermore, the outcome of employing a range of polar interfacing solvents was examined, and the 2-ethoxyethanol elevated the desulfurization degree up to 51.3%. However, the anticipated technology is constrained for its application in sulfur removal from SRD. Additionally, the mechanism for a photocatalytic reaction was seen in strong agreement with pseudo-first-order kinetics. The investigated photocatalyst exhibited a compromised recyclability and regeneration tendency.
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Affiliation(s)
- Iqrash Shafiq
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (I.S.); (S.S.); (A.A.)
- Refinery Division, Pak-Arab Refinery Limited “Company” (PARCO), Corporate Headquarters, Korangi Creek Road, Karachi 12345, Pakistan
| | - Murid Hussain
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (I.S.); (S.S.); (A.A.)
| | - Sumeer Shafique
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (I.S.); (S.S.); (A.A.)
| | - Parveen Akhter
- Department of Chemistry, The University of Lahore, 1-km Defence Road, Off Raiwind Road, Lahore 54000, Pakistan;
| | - Ashfaq Ahmed
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore 54000, Pakistan; (I.S.); (S.S.); (A.A.)
- School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
| | - Raja Shahid Ashraf
- Department of Chemistry, Government College University, Lahore 54000, Pakistan;
| | - Moonis Ali Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Korea;
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
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16
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Construction of Schottky contact by modification with Pt particles to enhance the performance of ultra-long V 2O 5 nanobelt photodetectors. J Colloid Interface Sci 2021; 607:1919-1927. [PMID: 34695740 DOI: 10.1016/j.jcis.2021.08.216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 11/22/2022]
Abstract
Schottky-contacted nanosensors have attracted extensive attention due to their high sensitivity and fast response time. In this article, we proved that the construction of Schottky contact by Pt nanoparticles (NPs) decoration can effectively improve the performance of V2O5 nanobelts photodetectors. After modified by Pt NPs, the photocurrent of V2O5 nanobelts is increased by more than two orders of magnitude, and the photoresponse speed is improved by at least three orders of magnitude. Detailed studies have shown that the performance enhancement is attributed to the formation of the Schottky contact at the electrode-semiconductor interface due to the decrease of surface gas adsorption and the increase of V2O5 work function after Pt NPs modification. The strong built-in field in the Schottky barrier region will quickly separate photogenerated carriers, thereby reducing the electron-hole recombination rate, resulting in the fast response time and an increase in the free carrier density. Moreover, it is found that this enhancement effect can be regulated by controlling the pressure to modulating the Schottky barrier height at the interface. Overall, the Pt NPs-modified V2O5 nanobelts photodetector exhibits a broad response spectrum (visible to near infrared), fast rise/fall response time (less than 6.12/6.15 ms), high responsivity (5.6 A/W), and high specific detectivity (6.9 × 108 Jones). This study demonstrates the feasibility of building a Schottky barrier to enhance the photodetection performance, which provides a general and effective strategy towards the construction and its practical application of supersensitive and fast-response nanosensors.
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17
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Synthesis of high color performance V-ZrSiO4 blue pigment with low doping amount via inorganic sol–gel route. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.07.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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18
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Upgraded photosensitivity under the influence of Yb doped on V2O5 thin films as an interfacial layer in MIS type Schottky barrier diode as photodiode application. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122289] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Effect of V additive on the crystallization of zircon via SCS method: Synthesis, characterization and reaction mechanism. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Tanaka JT, Moscardini SB, do Nascimento Melo WE, Brunckova H, Nassar EJ, Rocha LA. NIR Luminescence Enhancement of YVO 4:Nd Phosphor for Biological Application. J Fluoresc 2020; 31:209-217. [PMID: 33200375 DOI: 10.1007/s10895-020-02649-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 11/09/2020] [Indexed: 10/23/2022]
Abstract
This work reports two systematic studies related to yttrium vanadate (YVO4) phosphors. The first evaluates how the annealing temperature and V5+/Y3+ molar ratio determine the emergence of a single YVO4 tetragonal phase, whereas the second concerns the optimal Nd3+ concentration to improve the infrared emission properties for bio-labelling applications. The YVO4:Nd phosphors were synthesized by adapting the non-hydrolytic sol-gel route. For the first study, samples containing different V5+/Y3+ molar ratios (1.02, 1.48, 1.71, or 3.13) were obtained. For the second study, YVO4:Nd phosphors containing different Nd3+ concentrations (1.0, 3.0, 5.0, or 10.0% in mol) were prepared. X-ray diffractometry and RAMAN spectroscopy results revealed that, regardless of the heat-treatment temperature, the V5+/Y3+ molar ratio of 1.48 was the best composition to avoid undesired phases like Y2O3 and V2O5. Photoluminescence results indicated that the sample containing 3.0% in mol of Nd3+ and annealed at 1000 °C presented the best infrared emission properties. This sample displayed an intense broad band in the ultraviolet region, which was ascribed to the VO43- charge transfer band, as well as several bands in the visible and infrared regions, which were attributed to the Nd3+ intraconfigurational f-f transitions. Regardless of the excitation wavelength (ultraviolet, visible, or near-infrared), the mean radiative lifetime was about 12.00 µs. The prepared phosphors presented absorption and emission bands in the biological window (BW) regions, which are located between 750 and 900 nm and between 1000 and 1300 nm, so they are candidates for applications in medical imaging and diagnoses.
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Affiliation(s)
- Júlio Tadashi Tanaka
- Universidade de Franca, Av. Dr. Armando Salles Oliveira, 201, São Paulo, CEP 14404-600, Franca, Brazil
| | - Susane Bonamin Moscardini
- Universidade de Franca, Av. Dr. Armando Salles Oliveira, 201, São Paulo, CEP 14404-600, Franca, Brazil
| | | | - Helena Brunckova
- Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Eduardo José Nassar
- Universidade de Franca, Av. Dr. Armando Salles Oliveira, 201, São Paulo, CEP 14404-600, Franca, Brazil
| | - Lucas Alonso Rocha
- Universidade de Franca, Av. Dr. Armando Salles Oliveira, 201, São Paulo, CEP 14404-600, Franca, Brazil.
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21
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Altaf S, Ijaz H, Haider J, Naz M, Aqeel M, Ul-Hamid A, Ikram M, Zulfiqar S, Ditta SA, Shahbaz A, Ikram M. Influence of various transition metals incorporated into tellurium used as antimicrobial agent and textile dye degrader. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01547-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Abstract
Vanadium pentoxide (V2O5) is a transition metal oxide with features such as high availability, good catalytic activity, unique electrical properties and high conductivity which are appropriate for gas sensing applications. In this review, we discuss different gas sensing aspects of V2O5 in pristine, doped, decorated and composite forms. Depending on its synthesis procedure, morphology, sensing temperature and surface conditions, the V2O5-based gas sensors show different responses to target gases. Herein, we have discussed the behavior of V2O5-based gas sensors to different gases and associated sensing mechanisms. This review paper can be a useful reference for the researchers who works in the field of gas sensors.
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23
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Mouratis K, Tudose V, Romanitan C, Pachiu C, Tutunaru O, Suchea M, Couris S, Vernardou D, Emmanouel K. Electrochromic Performance of V 2O 5 Thin Films Grown by Spray Pyrolysis. MATERIALS 2020; 13:ma13173859. [PMID: 32882927 PMCID: PMC7503691 DOI: 10.3390/ma13173859] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/26/2020] [Accepted: 08/29/2020] [Indexed: 11/22/2022]
Abstract
A new approach regarding the development of nanostructured V2O5 electrochromic thin films at low temperature (250 °C), using air-carrier spray deposition and ammonium metavanadate in water as precursor is presented. The obtained V2O5 films were characterized by X-ray diffraction, scanning electron microscopy and Raman spectroscopy, while their electrochromic response was studied using UV-vis absorption spectroscopy and cyclic voltammetry. The study showed that this simple, cost effective, suitable for large area deposition method can lead to V2O5 films with large active surface for electrochromic applications.
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Affiliation(s)
- Kyriakos Mouratis
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (V.T.); (D.V.)
- Department of Physics, University of Patras, 26500 Patras, Greece;
- Correspondence: (K.M.); (M.S.); (K.E.)
| | - Valentin Tudose
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (V.T.); (D.V.)
- Department of Chemistry, University of Crete, 70013 Heraklion, Greece
| | - Cosmin Romanitan
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A, Erou Iancu 8 Nicolae Street, 077190 Bucharest, Romania; (C.R.); (C.P.); (O.T.)
| | - Cristina Pachiu
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A, Erou Iancu 8 Nicolae Street, 077190 Bucharest, Romania; (C.R.); (C.P.); (O.T.)
| | - Oana Tutunaru
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A, Erou Iancu 8 Nicolae Street, 077190 Bucharest, Romania; (C.R.); (C.P.); (O.T.)
| | - Mirela Suchea
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (V.T.); (D.V.)
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A, Erou Iancu 8 Nicolae Street, 077190 Bucharest, Romania; (C.R.); (C.P.); (O.T.)
- Correspondence: (K.M.); (M.S.); (K.E.)
| | - Stelios Couris
- Department of Physics, University of Patras, 26500 Patras, Greece;
| | - Dimitra Vernardou
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (V.T.); (D.V.)
- Department of Electrical and Computer Engineering, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece
| | - Koudoumas Emmanouel
- Center of Materials Technology and Photonics, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece; (V.T.); (D.V.)
- Department of Electrical and Computer Engineering, School of Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece
- Correspondence: (K.M.); (M.S.); (K.E.)
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Altaf S, Haider A, Naz S, Ul-Hamid A, Haider J, Imran M, Shahzadi A, Naz M, Ajaz H, Ikram M. Comparative Study of Selenides and Tellurides of Transition Metals (Nb and Ta) with Respect to its Catalytic, Antimicrobial, and Molecular Docking Performance. NANOSCALE RESEARCH LETTERS 2020; 15:144. [PMID: 32643064 PMCID: PMC7343698 DOI: 10.1186/s11671-020-03375-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/23/2020] [Indexed: 05/13/2023]
Abstract
The present research is a comparative study that reports an economical and accessible method to synthesize niobium (Nb) and Tantalum (Ta) selenides and tellurides with useful application in the removal of pollutants in textile, paper, and dyeing industries as well as in medical field. In this study, solid-state process was used to generate nanocomposites and various characterization techniques were employed to compare two groups of materials under investigation. Structure, morphology, elemental constitution, and functional groups of synthesized materials were analyzed with XRD, FESEM coupled with EDS, FTIR, and Raman spectroscopy, respectively. HR-TEM images displayed nanoscale particles with tetragonal and monoclinic crystal structures. The optical properties were evaluated in terms of cut-off wavelength and optical band gap using UV-visible spectroscopy. A comparative behavior of both groups of compounds was assessed with regards to their catalytic and microcidal properties. Extracted nanocomposites when used as catalysts, though isomorphs of each other, showed markedly different behavior in catalytic degradation of MB dye in the presence of NaBH4 that was employed as a reducing agent. This peculiar deviation might be attributed to slight structural differences between them. Escherichia coli and Staphylococcus aureus (G -ve and + ve bacteria, respectively) were designated as model strains for in vitro antibacterial tests of both clusters by employing disk diffusion method. Superior antibacterial efficacy was observed for telluride system (significant inhibition zones of 26-35 mm) compared with selenide system (diameter of inhibition zone ranged from 0.8 mm to 1.9 mm). In addition, molecular docking study was undertaken to ascertain the binding interaction pattern between NPs and active sites in targeted cell protein. The findings were in agreement with antimicrobial test results suggesting NbTe4 to be the best inhibitor against FabH and FabI enzymes.
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Affiliation(s)
- S Altaf
- Department of Chemistry, University of Engineering and Technology, Lahore, 54000, Pakistan
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore, Punjab, 54000, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China
| | - M Imran
- State key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing, 100029, China
| | - A Shahzadi
- University College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - M Naz
- Biochemistry Lab, Department of Chemistry, Government College University, Lahore, Punjab, 54000, Pakistan
| | - H Ajaz
- Department of Chemistry, University of Engineering and Technology, Lahore, 54000, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, Punjab, 54000, Pakistan.
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25
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Altaf S, Ajaz H, Imran M, Ul-Hamid A, Naz M, Aqeel M, Shahzadi A, Shahbaz A, Ikram M. Synthesis and characterization of binary selenides of transition metals to investigate its photocatalytic, antimicrobial and anticancer efficacy. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01350-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Nandi S, Misra A. Spray Coating of Two-Dimensional Suspended Film of Vanadium Oxide-Coated Carbon Nanotubes for Fabrication of a Large Volume Infrared Bolometer. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1315-1321. [PMID: 31823606 DOI: 10.1021/acsami.9b16608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel spray coating and transfer method is developed for fabricating a suspended bolometer of vanadium oxide-coated multiwalled carbon nanotubes (VCNTs). A parametric study was performed to evaluate the effect of the substrate, modulation frequency, and temperature on the bolometric performance and revealed that the performance of the bolometer solely does not depend on the substrate parameter but modulation frequency and bias current as a function of temperature also play a key attribute. The TCR (temperature coefficient of resistance) of the suspended VCNT bolometer is ∼-0.41%/K which is ∼486% higher than the reported suspended multiwalled CNTs at 300 K. Moreover, the suspended bolometer has a voltage responsivity of ∼67.42 ± 5.46 V/W (∼7.68 times that of unsuspended) at 200 K. Thus, the study presents an efficient method to develop the suspended bolometer that has not been realized so far to obtain much higher TCR and responsivity.
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Affiliation(s)
- Sukanta Nandi
- Department of Instrumentation and Applied Physics , Indian Institute of Science , Bangalore , Karnataka 560012 , India
| | - Abha Misra
- Department of Instrumentation and Applied Physics , Indian Institute of Science , Bangalore , Karnataka 560012 , India
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Chen TW, Rajaji U, Chen SM, Lou BS, Al-Zaqri N, Alsalme A, Alharthi FA, Lee SY, Chang WH. A sensitive electrochemical determination of chemotherapy agent using graphitic carbon nitride covered vanadium oxide nanocomposite; sonochemical approach. ULTRASONICS SONOCHEMISTRY 2019; 58:104664. [PMID: 31450375 DOI: 10.1016/j.ultsonch.2019.104664] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/23/2019] [Accepted: 06/28/2019] [Indexed: 06/10/2023]
Abstract
We have developed a graphitic carbon nitride covered vanadium oxide nanocomposite (V2O5@g-C3N4) by a simple sonochemical approach (50 kHz and 150 W/cm2). Furthermore, the morphology and chemical composition of the V2O5@g-C3N4 nanocomposite was carried out by X-rays diffractometry (XRD), transmission electron microscopy (TEM) and electrochemical impedance spectroscopy (EIS). Furthermore, the V2O5@g-C3N4 nanocomposite modified electrode was investigate electrochemical behavior of the anticancer drug. Compared with bare SPCE, V2O5/SPCE and g-C3N4/SPCE, V2O5@g-C3N4 modified SPCE showed highest current response towards anti-cancer drug (methotrexate). Furthermore, the modified sensor exhibits with a sharp peaks and wide linear range (0.025-273.15 μM) by using DPV with the sensitivity of 7.122 μA μM-1 cm-2. Notably, we have achieved a nanomolar detection limit (13.26 nM) for the DPV detection of methotrexate. Further, the practicability of the V2O5@g-C3N4 nanocomposite modified sensor can be used for real time sensing of methotrexate in drug and blood serum samples with good recover ranges. It has potential applications in routine analysis with high specificity, excellent reproducibility and good stability.
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Affiliation(s)
- Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan; Research and Development Center for Smart Textile Technology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Umamaheswari Rajaji
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
| | - Bih-Show Lou
- Chemistry Division, Center for General Education, Chang Gung University, Taoyuan, Taiwan; Department of Nuclear Medicine and Molecular Imaging Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
| | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Department of Chemistry, College of Science, Ibb University, P.O. Box 70270, Ibb, Yemen
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Shih-Yi Lee
- Division of Pulmonary and Critical Care Medicine, Taitung MacKay Memorial Hospital, MacKay Memorial Hospital, Mackay Junior College of Medicine, Nursing, and Management College, Taipei, Taiwan.
| | - Wen-Han Chang
- Department of Emergency Medicine, MacKay Memorial Hospital, Institute of Mechatronic Engineering, National Taipei University of Technology, Taiwan; Graduate Institute of Injury Prevention and Control, School of Medicine, Taipei Medical University, Taiwan
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28
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High-Performance Copper Oxide Visible-Light Photodetector via Grain-Structure Model. Sci Rep 2019; 9:7334. [PMID: 31089236 PMCID: PMC6517403 DOI: 10.1038/s41598-019-43667-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 04/24/2019] [Indexed: 11/30/2022] Open
Abstract
Recently, copper oxide (CuO)-based visible-light photodetectors have attracted great interest due to their narrow bandgap (1.2 eV), low cost, and ease of fabrication. However, there has been insufficient theoretical analysis and study of CuO-based photodetectors, resulting in inferior performance in terms of responsivity, detectivity, and response speed. This work develops a method to enhance the performance of CuO photodetectors by engineering a grain structure based on a newly-developed theoretical model. In the developed theoretical grain-structure model, the grain size and the connections between grains are considered because they can strongly affect the optoelectronic characteristics of CuO photodetectors. Based upon the proposed model, the engineered CuO device achieves enhanced optoelectronic performance. The engineered device shows high responsivity of 15.3 A/W and detectivity of 1.08 × 1011 Jones, which are 18 and 50 times better than those of the unoptimized device, and also shows fast rising and decaying response speeds of 0.682 s and 1.77 s, respectively. In addition, the proposed method is suitable for the mass-production of performance-enhanced, reliable photodetectors. By using a conventional semiconductor fabrication process, a photodetector-array is demonstrated on a 4-inch wafer. The fabricated devices show uniform, high, and stable optoelectronic performance for a month.
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Lee S, Kim J, Jeon JH, Song M, Kim S, You YG, Jhang SH, Seo SA, Chun SH. Chemical Vapor-Deposited Vanadium Pentoxide Nanosheets with Highly Stable and Low Switching Voltages for Effective Selector Devices. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42875-42881. [PMID: 30427172 DOI: 10.1021/acsami.8b15686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Recently, attempts to overcome the physical limits of memory devices have led to the development of promising materials and architectures for next-generation memory technology. The selector device is one of the essential ingredients of high-density stacked memory systems. However, complicated constituent deposition conditions and thermal degradation are problematic, even with effective selector device materials. Herein, we demonstrate the highly stable and low-threshold voltages of vanadium pentoxide (V2O5) nanosheets synthesized by facile chemical vapor deposition, which have not been previously reported on the threshold switching (TS) properties. The electrons occupying trap sites in poly-crystalline V2O5 nanosheet contribute to the perfectly symmetric TS feature at the bias polarity and low-threshold voltages in V2O5, confirmed by high-resolution transmission electron microscopy measurements. Furthermore, we find an additional PdO interlayer in V2O5 nanodevices connected with a Pd/Au electrode after thermal annealing treatment. The PdO interlayer decreases the threshold voltages, and the Ion/ Ioff ratio increases because of the increased trap density of V2O5. These studies provide insights into V2O5 switching characteristics, which can support low power consumption in nonvolatile memory devices.
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Affiliation(s)
- Sunghun Lee
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
| | - Jinsu Kim
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
| | - Jae Ho Jeon
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
| | - Minho Song
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
| | - Seonyeong Kim
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
| | - Young Gyu You
- School of Physics , Konkuk University , Seoul 05029 , Republic of Korea
| | - Sung Ho Jhang
- School of Physics , Konkuk University , Seoul 05029 , Republic of Korea
| | - Sun-Ae Seo
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
| | - Seung-Hyun Chun
- Department of Physics and Astronomy , Sejong University , Seoul 05006 , Republic of Korea
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30
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Teng F, Hu K, Ouyang W, Fang X. Photoelectric Detectors Based on Inorganic p-Type Semiconductor Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706262. [PMID: 29888448 DOI: 10.1002/adma.201706262] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 01/18/2018] [Indexed: 05/03/2023]
Abstract
Photoelectric detectors are the central part of modern photodetection systems with numerous commercial and scientific applications. p-Type semiconductor materials play important roles in optoelectronic devices. Photodetectors based on p-type semiconductor materials have attracted a great deal of attention in recent years because of their unique properties. Here, a comprehensive summary of the recent progress mainly on photodetectors based on inorganic p-type semiconductor materials is presented. Various structures, including photoconductors, phototransistors, homojunctions, heterojunctions, p-i-n junctions, and metal-semiconductor junctions of photodetectors based on inorganic p-type semiconductor materials, are discussed and summarized. Perspectives and an outlook, highlighting the promising future directions of this research field, are also given.
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Affiliation(s)
- Feng Teng
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Kai Hu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Weixin Ouyang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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