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Niksarlıoğlu S, Akman F, Pekdemir ME, Yalçın Kuzu S, Kaçal MR, Yılmaz M. An extensive investigation on gamma shielding properties of PLA/Gd2O3 nanocomposites. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Panneer NK, Venkatraman C, Bachan N, Wilson JJ, Edwin MA, Jesudasan AR, Joseph MS. Ecofriendly sol-gel-derived dye-sensitized solar cells with aluminium-doped tin oxide photoanode. Environ Sci Pollut Res Int 2023; 30:60524-60537. [PMID: 37036651 DOI: 10.1007/s11356-023-26733-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/27/2023] [Indexed: 04/11/2023]
Abstract
The manuscript reports the fabrication of an eco-friendly sol gel dye-sensitized solar cell (DSSC) based on aluminium (Al)-doped tin oxide nanoparticles with different concentrations (0.5, 1, and 5 mol%) of Al providing enhanced optical and electrical properties than its bare counterparts. The physical, chemical, optical, and electrical properties of the as-synthesized nanoparticles were studied using different analytical tools. X-ray diffraction (XRD) study reveals the crystal structure of the prepared samples ascribed to SnO2 nanoparticles uniformly with reduced crystallite size for Al-doped SnO2 nanoparticles. Field emission scanning electron microscope (FESEM) analysis reveals narrowing of particle size on doping with the Al, substantially enhancing the optical and surface characteristic features of the SnO2 nanoparticles. Photoconductivity studies indicate that all the samples have a good linear response with the increment of electric field in dark and photocurrent attributing to better photoconversion capability of the samples. Further, the optimized Al-doped SnO2 and bare SnO2 nanoparticles were subjected to sophisticated analytical studies such as high-resolution transmission electron microscope (HR-TEM) and X-ray photoelectron spectroscopy (XPS) for the better insight into their properties. The as-prepared Al-doped SnO2 nanoparticles in the present study record good optical, surface, and electrical properties which enhance their compatibility for possible photovoltaic applications especially in dye-sensitized solar cells as an environmentally safe alternate energy solution. Further, the current density-voltage (J-V) characteristics of the optimized Al-SnO2 and bare SnO2 photoanode component were probed for their suitability in DSSCs which disclosed enriched efficiency upon doping with aluminium nanoparticles.
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Affiliation(s)
- Naveen Kumar Panneer
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Chandrakala Venkatraman
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Neena Bachan
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Jothi Jeyarani Wilson
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Merlin Arnold Edwin
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Antony Robinson Jesudasan
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India
| | - Merline Shyla Joseph
- Department of Physics, Energy Nanotechnology Centre (ENTeC), Loyola Institute of Frontier Energy (LIFE), Loyola College, Chennai, 600 034, India.
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Bhoriya A, Sachin, Bura N, Yadav D, Singh J, Singh N, Singh HK, Dilawar Sharma N. Application of Perovskite Strontium Doped Neodymium Manganite (Nd0.6Sr0.4MnO3) for Effective Removal of Fast Green Dye, A Toxic Wastewater Contaminant“. ChemistrySelect 2023. [DOI: 10.1002/slct.202204632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Ankit Bhoriya
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Sachin
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Neha Bura
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Deepa Yadav
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Jasveer Singh
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
| | - Nahar Singh
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - H. K. Singh
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Nita Dilawar Sharma
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg New Delhi 110012 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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Kurban M. Sulfur doping concentration effect on the electronic and structural properties of ZnO nanoparticles: Insights from DFTB calculations. COMPUT THEOR CHEM 2023. [DOI: 10.1016/j.comptc.2023.114112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Somasundaram G, Balasubramanian S, Vaiyapuri T, Muthiah S, Sivanesan JR, Nesakumar N, Shanmugam S, Gunasekaran BM. Electrochemical Detection of 4‐Nitrophenol Using A Screen‐Printed Carbon Electrode Modified by Rod‐Shaped Nickel Oxide Nanoparticles. ChemistrySelect 2023; 8. [DOI: 10.1002/slct.202204418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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Ghaffarlou M, Sütekin SD, Karacaoğlu E, Karahisar Turan S, İnci ÖG, Güven O, Barsbay M. Folic acid-modified biocompatible Pullulan/poly(acrylic acid) nanogels for targeted delivery to MCF-7 cancer cells. Eur J Pharm Biopharm 2023; 184:189-201. [PMID: 36764499 DOI: 10.1016/j.ejpb.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/22/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
We prepared a novel nanogel consisting of poly(acrylic acid) (PAA) and pullulan (Pull) via a facile and green irradiation protocol. Synthesized nanogels were modified with bovine serum albumin (BSA) and folic acid (FA) and then loaded with doxorubicin (DOX) to obtain a delivery system with tumor-specific targeting ability and enhanced biocompatibility. In-vitro DOX release was investigated at different pH values, and it was found that DOX release was higher in acidic media, which is an advantage for the internalization of nanoparticles in acidic tumor environment. MTT assay and DAPI staining were performed to evaluate the effects of nanogels on L929 and MCF-7 cells. Based on the results of in vitro studies, DOX-loaded nanogels were found to be effective on cancer cells, while the neat ones were nondestructive in both lines. Overall, we envision that the biocompatible and tumor-specific nanogels could be a promising safe drug carrier system for cancer therapy.
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Affiliation(s)
| | - S Duygu Sütekin
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Elif Karacaoğlu
- Hacettepe University, Department of Biology, Beytepe, 06800 Ankara, Turkey
| | | | - Özlem Gülüm İnci
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Olgun Güven
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Murat Barsbay
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey.
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Ata AÇ, Yildiko Ü, Tanriverdi AA, Ebiri R, Yiğit E, Orak İ, Cakmak İ. Two‐step novel aromatic polyimide synthesis and characterization: Survey of energy calculations and diode applications. J Appl Polym Sci 2023. [DOI: 10.1002/app.53689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ahmet Çağrı Ata
- Institute of Science, Department of Chemistry Kafkas University Kars Turkey
| | - Ümit Yildiko
- Architecture and Engineering Faculty, Department of Bioengineering Kafkas University Kars Turkey
| | | | - Rüstem Ebiri
- Faculty of Sciences. Department of Chemistry Ataturk University Erzurum Turkey
| | - Evin Yiğit
- Department of Chemistry, Faculty of Sciences and Arts Bingol University Bingol Turkey
| | - İkram Orak
- Vocational School of Health Services Bingol University Bingol Turkey
- Renewable Energy Systems, Institute of Science Bingol University Bingol Turkey
| | - İsmail Cakmak
- Faculty of Arts and Sciences. Department of Chemistry Kafkas University Kars Turkey
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Karuppasamy B, Shenbagabalakrishnan B, Gayathri V. Liquid-phase exfoliated graphite-nanosheets as counter electrode for enhanced performance of cost-effective DSSCs. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-023-05377-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Saraswat V, Pal SK, Mehta N, Kumar A, Imran MMA. Thermal analysis of novel third-generation phase-change materials with zinc as a chemical modifier. RSC Adv 2023; 13:3602-3611. [PMID: 36756576 PMCID: PMC9890671 DOI: 10.1039/d2ra07041c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/07/2023] [Indexed: 01/27/2023] Open
Abstract
The thermal analysis in the present work is done to analyze the glass/crystal phase transformation in a newly synthesized glassy system (i.e., glassy SeTeSnZn alloys) consisting of chalcogenides Se and Te as major elements, Sn as a third element of the parent alloy and Zn as a chemical modifier. The role of increasing the Zn concentration at the cost of Se has been understood by correlating the kinematics of structural relaxation during the glass transition phenomenon and devitrification during the crystallization phenomenon in the chalcogenide glasses (ChGs) of the quaternary STSZ [i.e., Se78-x Zn x Te20Sn2 (0 ≤ x ≤ 6)] system and their different physicochemical properties. A noticeable rise in the crystallization rate is observed after the addition of Zn in the parent SeTeSn glass. With the rise in the zinc content, the values of average heat of atomization and overall mean bond energy are found to be decreased with the decrease in cohesive energy of samples. An inverse correlation is observed between the thermal stability parameter and the enthalpy released during the glass/crystalline phase transformation.
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Affiliation(s)
- Vishnu Saraswat
- Physics Department, Banaras Hindu University Varanasi-221005 India
| | - Shiv Kumar Pal
- Physics Department, Banaras Hindu University Varanasi-221005 India
| | - N. Mehta
- Physics Department, Banaras Hindu UniversityVaranasi-221005India
| | - Arun Kumar
- Physics Department, IIT RoorkeeRoorkee-247667India
| | - M. M. A. Imran
- Physics Department, Al-Balqa Applied UniversityAl-Salt-19117Jordan
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Ptaszyńska K, Malaika A, Kapska M, Kozłowski M. SO(3)H-functionalized carbon fibers for the catalytic transformation of glycerol to glycerol tert-butyl ethers. Sci Rep 2023; 13:565. [PMID: 36631517 DOI: 10.1038/s41598-023-27432-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 01/02/2023] [Indexed: 01/13/2023] Open
Abstract
Carbon fibers (CFs) of high quality were produced from hydrocarbons such as isobutane or ethylene using the catalytic chemical vapor deposition method (CCVD) and Ni catalyst. The as-prepared samples were functionalized with acidic groups using concentrated sulfuric acid or 4-benzenediazonium sulfonate (BDS) generated in situ from sulfanilic acid and sodium nitrite. The morphological features of the materials were confirmed by transmission electron microscopy, whereas their physicochemical properties were characterized by means of elemental and textural analyses, thermogravimetric (TG) method, Raman spectroscopy, potentiometric back titration, and X-ray diffraction analysis. The obtained CFs were used as catalysts in glycerol etherification with tert-butyl alcohol at 110 °C under autogenous pressure. The BDS-modified CFs were particularly effective in the reaction, showing high glycerol conversions (of about 45-55% after 6 h) and substantial yields of mono- and di-glycerol ethers. It was found that the chemistry of the sample surface was crucial for the process. The high concentration of -SO3H groups decorating CFs boosted the formation of di- and tri-tert-butyl glycerol ethers. Surface oxygen functionalities also had a positive effect on the reaction, however, their impact on the catalytic performances of CFs was significantly weaker compared to that shown by -SO3H groups and it was probably due to the adsorption of reagents on the catalyst surface.
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11
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Lima AM, de Alencar Filho GM, Furtado Neto JS. Black String Bounce to Traversable Wormhole. Symmetry (Basel) 2023; 15:150. [DOI: 10.3390/sym15010150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
In this work, a regular black string solution is presented from the method used by Simpson–Visser to regularize the Schwarzschild solution. As in the Simpson–Visser work, in this new black string solution, it is possible to represent both a regular black hole and a wormhole simply by changing the value of a parameter “a” used in its metric. Tensors and curvature invariants are analyzed to verify the regularity of the solution as well as the energy conditions of the system. It is found that the null energy condition is always violated for the entire space. An additional analysis of the thermodynamic properties of the regular black string is carried out, in which the modifications generated about the original solution of the black string are evaluated, specifically, the Hawking temperature, entropy, its thermal capacity, and the Helmholtz free energy. Finally, we investigate the possible stable or unstable circular orbits for photons and massive particles. The results are compared with those for the non-regular black string, seeking to make a parallel with the Simpson–Visser work.
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Al-Marzook FA, Salam Hussein E, Kadhim MM, Mahdi Rheima A, Al-Marjani MF, Ahmed Hamza T, Muhammed Mahdi Z, Adel M, Darabinajand B. Studying Ga and Ge-doped AlP nanotube as a drug carrier for ciclopirox anticancer drug using DFT. COMPUT THEOR CHEM 2023. [DOI: 10.1016/j.comptc.2023.114025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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khan D, Kumam P, Kumam W, Suttiarporn P, Rehman A. Relative Magnetic Field and slipping effect on Casson dusty fluid of two phase fluctuating flow over inclined parallel plate. South African Journal of Chemical Engineering 2023. [DOI: 10.1016/j.sajce.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Abu-Shady M, Khokha EM. On prediction of the fractional vibrational energies for diatomic molecules with the improved Tietz potential. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2140720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- M. Abu-Shady
- Department of Mathematics and Computer Science, Faculty of Science, Menoufia University, Shibin El Kom, Egypt
| | - E. M. Khokha
- Department of Basic Science, Modern Academy for Engineering and Technology, Maadi, Egypt
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Domonkos M, Kromka A. Nanosphere Lithography-Based Fabrication of Spherical Nanostructures and Verification of Their Hexagonal Symmetries by Image Analysis. Symmetry (Basel) 2022; 14:2642. [DOI: 10.3390/sym14122642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Nanosphere lithography (NSL) is a cost- and time-effective technique for the fabrication of well-ordered large-area arrays of nanostructures. This paper reviews technological challenges in NSL mask preparation, its modification, and quality control. Spin coating with various process parameters (substrate wettability, solution properties, spin coating operating parameters) are discussed to create a uniform monolayer from monodisperse polystyrene (PS) nanospheres with a diameter of 0.2–1.5 μm. Scanning electron microscopy images show that the PS nanospheres are ordered into a hexagonal close-packed monolayer. Verification of sphere ordering and symmetry is obtained using our open-source software HEXI, which can recognize and detect circles, and distinguish between hexagonal ordering and defect configurations. The created template is used to obtain a wide variety of tailor-made periodic structures by applying additional treatments, such as plasma etching (isotropic and anisotropic), deposition, evaporation, and lift-off. The prepared highly ordered nanopatterned arrays (from circular, triangular, pillar-shaped structures) are applicable in many different fields (plasmonics, photonics, sensorics, biomimetic surfaces, life science, etc.).
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Selva Esakki E, Vivek P, Devi LR, Sarathi R, Sheeba N, Sundar SM. Influence on electrochemical impedance and photovoltaic performance of natural DSSC using Terminalia catappa based on Mg-doped ZnO photoanode. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Esakki E, Vivek P, Sundar S. Influence on the efficiency of Dye-Sensitized Solar Cell using Cd doped ZnO via solvothermal method. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Esien-Umo EO, Obu JA, Chiaghanam NO, Ugbem TI, Egbe NO. Photon Interaction Coefficients for the Colorectal Cancer Tissue. J Med Phys 2022; 47:381-386. [PMID: 36908488 PMCID: PMC9997532 DOI: 10.4103/jmp.jmp_29_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 01/12/2023] Open
Abstract
Purpose The application of radiotherapy to the treatment of cancer requires the knowledge of photon interaction coefficients such as mass attenuation (μm) and mass energy-absorption coefficients (μen/ρ). Although these coefficients have been determined for different tissues, it is lacking for the colorectal cancer (CRC) tissue in the literature. This study determines the μm and μen/ρ for the CRC tissue within the radiotherapy energy range. Materials and Methods The CRC tissue from autopsy patients was freeze-dried, grounded into a fine powder, and made into pellets of 1 cm thickness. The elements detected in the CRC tissue using Rutherford backscattering spectrometry were used in XCOM to determine the theoretical values of μm and μen/ρ. The CRC tissue was again exposed to X-rays of energies of 6 and 15MV, respectively, to determine its experimental values of μm and μen/ρ. Results Elements detected included carbon, oxygen and nitrogen making up 96.67%, high atomic number and trace elements making up the remaining 3.33% fraction of the CRC tissue. Conclusion The theoretical and experimental μm and μen/ρ values showed a good agreement of about 2% difference between them. These values can be used to simulate the CRC tissue with respect to μm and μen/ρ.
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Affiliation(s)
- Emmanuel Okon Esien-Umo
- Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
| | - Joseph Abebe Obu
- Department of Physics, Faculty of Physical Sciences, University of Calabar, Calabar, Nigeria
| | - Ndubuisi Ozoemena Chiaghanam
- Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
| | | | - Nneoyi Onen Egbe
- Department of Radiography and Radiological Sciences, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria
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Cheng Y, Wang X, Zhang D, Qiao X, Zhao H, Chang L, Yu Z, Xia Y, Fan J, Huang C, Yang S. High-capacity binderless supercapacitor electrode obtained from sulfidation large interlayer spacing of NiMn-LDH. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Amanuel F. Nuclear model prediction of cross-section for 125 - 119I radionuclides produced in proton + 125Te reaction at ≈ 5–100 MeV. Appl Radiat Isot 2022; 188:110351. [DOI: 10.1016/j.apradiso.2022.110351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 11/02/2022]
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Lone IH, Khan H, Wani IA, Jain AK, Ahmad T. Magnetic, Electrical and Humidity Sensing Properties of Multiferroic GdCrO
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Nanoparticles Fabricated by Metal Organic Precursor Method. ChemistrySelect 2022. [DOI: 10.1002/slct.202202547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Irfan H. Lone
- Nanochemistry Laboratory Department of Chemistry Jamia Millia Islamia New Delhi 110025 India
- Department of Chemistry University of Kashmir, Hazratbal Srinagar 190006 Jammu & Kashmir India
| | - Huma Khan
- Nanochemistry Laboratory Department of Chemistry Jamia Millia Islamia New Delhi 110025 India
| | - Irshad A. Wani
- PG Department of Chemistry Govt. Postgraduate Degree College Bhadarwah University of Jammu Jammu & Kashmir 182222 Jammu India
| | - Arvind Kumar Jain
- School of Basic and Applied Sciences Galgotias University Greater Noida 201306, UP India
| | - Tokeer Ahmad
- Nanochemistry Laboratory Department of Chemistry Jamia Millia Islamia New Delhi 110025 India
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Furkina EB, Moiseeva AN, Aliev RA, Zagryadskiy VA, Makoveeva KA, Novikov VI, Unezhev VN. Chromatographic separation of rhenium radioisotopes from irradiated tungsten cyclotron target. J Radioanal Nucl Chem. [DOI: 10.1007/s10967-022-08526-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Konefał A, Orlef A, Sokół M. Application of therapeutic linear accelerators for the production of radioisotopes used in nuclear medicine. Polish Journal of Medical Physics and Engineering 2022; 28:107-116. [DOI: 10.2478/pjmpe-2022-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
This review paper summarizes the possibilities of the use of therapeutic linear electron accelerators for the production of radioisotopes for nuclear medicine. This work is based on our published results and the thematically similar papers by other authors, directly related to five medical radioisotopes as 99Mo/99mTc, 198Au, 186Re, 188Re, 117mSn, produced using therapeutic linacs. Our unpublished data relating to the issues discussed have also been used here. In the experiments, two types of radiation were included in the analysis of the radioisotope production process, i.e. the therapeutic twenty-megavolt (20 MV) X-rays generated by Varian linacs and neutron radiation contaminating the therapeutic beam. Thus, the debated radioisotopes are produced in the photonuclear reactions and in the neutron ones. Linear therapeutic accelerators do not allow the production of radioisotopes with high specific activities, but the massive targets can be used instead. Thus, the amount of the produced radioisotopes may be increased. Apart from linear accelerators, more and more often, the production of radioisotopes is carried out in small medical cyclotrons. More such cyclotrons are developed, built, and sold commercially than for scientific research. The radioisotopes produced with the use of therapeutic linacs or cyclotrons can be successfully applied in various laboratory tests and in research.
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Bhattacharjee P, Bandyopadhyay A, Chakraborty S, Ghosh S, Kar K, Saha S. Inelastic charged-current interactions of supernova neutrinos in two-phase liquid xenon dark matter detectors. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.043029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Al-asbahi BA. Tuning photophysical properties of PFO conjugated polymer for enhancing polymer light emitting diode performance via addition of SiO2/TiO2 nanocomposite. J Mol Struct 2022; 1261:132946. [DOI: 10.1016/j.molstruc.2022.132946] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Agaev S, Azizi K, Sundu H. Resonance
X(4630). Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.014025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Agaev S, Azizi K, Sundu H. Is the resonance
X0(2900)
a ground-state or radially excited scalar tetraquark
[ud][c¯s¯]
? Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.014019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Faniandari S, Suparmi A, Cari C. Study of thermomagnetic properties of the diatomic particle using hyperbolic function position dependent mass under the external hyperbolic magnetic and AB force. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2083712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Suci Faniandari
- Doctoral Student of Physics Department, Universitas Sebelas Maret, Surakarta, Indonesia
| | - A. Suparmi
- Faculties Member of Physics Department, Universitas Sebelas Maret, Surakarta, Indonesia
| | - C. Cari
- Faculties Member of Physics Department, Universitas Sebelas Maret, Surakarta, Indonesia
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Fu Y, Liao Y, Li P, Li H, Jiang S, Huang H, Sun W, Li T, Yu H, Li K, Li H, Jia B, Ma T. Layer structured materials for ambient nitrogen fixation. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214468] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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30
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Osintsev K, Aliukov S. ORC Technology Based on Advanced Li-Br Absorption Refrigerator with Solar Collectors and a Contact Heat Exchanger for Greenhouse Gas Capture. Sustainability 2022; 14:5520. [DOI: 10.3390/su14095520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Agricultural and agro-processing production facilities, storage warehouses and logistics centers for the distribution of products require an increase in the efficiency of generation and energy consumption. The authors suggested using ORC technology based on an advanced Li-Br absorption refrigerator with solar collectors and a contact heat exchanger for greenhouse gas capture. The work was devoted to the option of intensifying heat exchange processes in convective chimneys, which will reduce the consumption of natural gas, increase the share of using unconventional and circulating energy resources and reduce the amount of harmful emissions into the atmosphere. The authors showed that the development and application of the technology of energy-technological combination of existing power systems on organic fuel and environmentally friendly “green” technologies for the utilization of the heat of condensation of water vapor of exhaust gases at a certain partial pressure are becoming relevant. The results of the study can also be used to increase the productivity of gas-piston and gas-turbine mini-CHP (combined heat and power) plants and boiler houses of agricultural enterprises. In this article, it is proposed to increase the energy characteristics of steam and hot water boilers while simultaneously improving the environmental situation in agricultural complexes by reducing greenhouse gas emissions into the atmosphere. Most of the triatomic vapors go into the environment, and the disposal of these gases is a complex procedure. In order to increase efficiency, a research methodology was developed, and an analysis of the flue gas cooling method was carried out. The methodology for assessing the possibility of using a flue gas utilization system, in particular contact heat exchangers, Li-Br absorption refrigerating machines, heat pumps and the organic Rankine cycle, in agricultural systems with high energy consumption, as well as at low-power mini-CHP plants, is presented for the first time. This technique is interesting because it can be integrated into the exergoeconomical analysis of the efficiency of using the heat of the soil and groundwater as an energy source.
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31
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Seyfikar S, Asgharnejad-laskoukalayeha M, Hassan Jafari S, Goodarzi V, Hadi Salehi M, Zamanlui S. Introducing a New Approach to Preparing Bionanocomposite Sponges Based on Poly (glycerol sebacate urethane) (PGSU) with Great Interconnectivity and High Hydrophilicity Properties for Application in Tissue Engineering. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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32
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Wahabi JM, Abu Hanifah NZH, Hashim S, Bradley D. Modified irradiation technique for transfusable blood using a clinical linear accelerator. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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33
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Abstract
Mirror models lead to the possibility that neutron (n) can oscillate into its mirror partner (n′), inspiring several experimental searches for this phenomenon. The condition for observability of this oscillation is a high degree of degeneracy between the n and n′ masses, which can be guaranteed if there is exact parity symmetry taking all particles to their mirror partners. However, consistency of these models with big-bang nucleosynthesis requires that this parity symmetry be broken in the early universe in a scenario called asymmetric inflation. In this paper, we study the consistency of an observable n−n′ oscillations signal with asymmetric inflation and derive various theoretical constraints. In particular, we find that the reheat temperature after inflation should lie below 2.5 TeV, and we predict a singlet fermion with a mass below 100 GeV. In simple models, where the right-handed neutrino is a mediator of baryon-number-violating interactions, we find that the light neutrinos are Dirac fermions with their masses arising radiatively through one-loop diagrams.
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34
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Kashuri A, Agarwal RP, Mohammed PO, Nonlaopon K, Abualnaja KM, Hamed YS. New Generalized Class of Convex Functions and Some Related Integral Inequalities. Symmetry (Basel) 2022; 14:722. [DOI: 10.3390/sym14040722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
There is a strong correlation between convexity and symmetry concepts. In this study, we investigated the new generic class of functions called the (n,m)–generalized convex and studied its basic algebraic properties. The Hermite–Hadamard inequality for the (n,m)–generalized convex function, for the products of two functions and of this type, were proven. Moreover, this class of functions was applied to several known identities; midpoint-type inequalities of Ostrowski and Simpson were derived. Our results are extensions of many previous contributions related to integral inequalities via different convexities.
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35
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Dong M, Tishkevich D, Hanfi M, Semenishchev V, Sayyed M, Zhou S, Grabchikov S, Khandaker M, Xue X, Zhaludkevich A, Razanau I, Vinnik D, Trukhanov S, Zubar T, Trukhanov A. WCu composites fabrication and experimental study of the shielding efficiency against ionizing radiation. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110175] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Nguyen TT, Nguyen TT, Tran TN. Parameter estimation of photovoltaic cell and module models relied on metaheuristic algorithms including artificial ecosystem optimization. Neural Comput Appl. [DOI: 10.1007/s00521-022-07142-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Restrepo-cuestas BJ, Montano J, Ramos-paja CA, Trejos-grisales LA, Orozco-gutierrez ML. Parameter Estimation of the Bishop Photovoltaic Model Using a Genetic Algorithm. Applied Sciences 2022; 12:2927. [DOI: 10.3390/app12062927] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Photovoltaic panels can be affected by partial shading, which causes some shaded cells to consume the energy generated by other cells of the panel. That is, shaded cells stop operating in the first quadrant and start operating in the second quadrant, with negative voltage at their terminals, causing power losses and other negative effects in the cells. The Bishop model is an accurate representation of the cells behavior at the second quadrant, but estimating its parameters is not a trivial task. Therefore, this paper presents a procedure to estimate the parameters of the Bishop model by using the Chu–Beasley optimization technique. The effectiveness of this procedure was evaluated using different accuracy measures such as RMSE and MAPE, obtaining values lower than 0.5%. In addition, the results of this study demonstrate that it is essential to estimate all the parameters of the Bishop model, illustrate the variation in the parameters according to the cell technology and show the strong influence of the shunt resistance into the behavior at the second quadrant.
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Cao Long V, Saraç U, Baykul MC, Trong LD, Ţălu Ş, Nguyen Trong D. Electrochemical Deposition of Fe–Co–Ni Samples with Different Co Contents and Characterization of Their Microstructural and Magnetic Properties. Coatings 2022; 12:346. [DOI: 10.3390/coatings12030346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this study, to explore the effect of Co contents on the electroplated Fe–Co–Ni samples, three different Fe–Co33–Ni62, Fe–Co43–Ni53, and Fe–Co61–Ni36 samples were electrochemically grown from Plating Solutions (PSs) containing different amounts of Co ions on indium tin oxide substrates. Compositional analysis showed that an increase in the Co ion concentration in the PS gives rise to an increment in the weight fraction of Co in the sample. In all samples, the co–deposition characteristic was described as anomalous. The samples exhibited a predominant reflection from the (111) plane of the face–centered cubic structure. However, the Fe–Co61–Ni36 sample also had a weak reflection from the (100) plane of the hexagonal close–packed structure of Co. An enhancement in the Co contents caused a strong decrement in the crystallinity, resulting in a decrease in the size of the crystallites. The Fe–Co33–Ni62 sample exhibited a more compact surface structure comprising only cauliflower–like agglomerates, while the Fe–Co43–Ni53 and Fe–Co61–Ni36 samples had a surface structure consisting of both pyramidal particles and cauliflower–like agglomerates. The results also revealed that different Co contents play an important role in the surface roughness parameters. From the magnetic analysis of the samples, it was understood that the Fe–Co61–Ni36 sample has a higher coercive field and magnetic squareness ratio than the Fe–Co43–Ni53 and Fe–Co33–Ni62 samples. The differences observed in the magnetic characteristics of the samples were attributed to the changes revealed in their phase structure and surface roughness parameters. The obtained results are the basis for the fabrication of future magnetic devices.
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39
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Rekhviashvili SS. Some Questions Concerning a Small Sessile Bubble. Colloid J 2022. [DOI: 10.1134/s1061933x21060107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Abstract
In this paper, the Painlevé integrable property of the (1 + 1)-dimensional generalized Broer–Kaup (gBK) equations is first proven. Then, the Bäcklund transformations for the gBK equations are derived by using the Painlevé truncation. Based on a special case of the derived Bäcklund transformations, the gBK equations are linearized into the heat conduction equation. Inspired by the derived Bäcklund transformations, the gBK equations are reduced into the Burgers equation. Starting from the linear heat conduction equation, two forms of N-soliton solutions and rational solutions with a singularity condition of the gBK equations are constructed. In addition, the rational solutions with two singularity conditions of the gBK equation are obtained by considering the non-uniqueness and generality of a resonance function embedded into the Painlevé test. In order to understand the nonlinear dynamic evolution dominated by the gBK equations, some of the obtained exact solutions, including one-soliton solutions, two-soliton solutions, three-soliton solutions, and two pairs of rational solutions, are shown by three-dimensional images. This paper shows that when the Painlevé test deals with the coupled nonlinear equations, the highest negative power of the coupled variables should be comprehensively considered in the leading term analysis rather than the formal balance between the highest-order derivative term and the highest-order nonlinear term.
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41
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Dautoo UK, Shandil Y, Ranote S, Jamwal S, Chauhan GS. New efficient poly(acrylic acid)-based bifunctional Cu2+ ions adsorbents. Colloids Surf A Physicochem Eng Asp 2022; 635:128090. [DOI: 10.1016/j.colsurfa.2021.128090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Fu JJ, Zhang GY, Zhang ZH, Shao ZW, Xu XB, Song L. Formation mechanism of nanocomplex of resveratrol and glycated bovine serum albumin and their glycation-enhanced stability showing glycation extent. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112916] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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43
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44
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Turhan MF, Akman F, Taşer A, Dilsiz K, Oğul H, Kaçal MR, Agar O. Gamma radiation shielding performance of CuxAg(1-x)-alloys: Experimental, theoretical and simulation results. Progress in Nuclear Energy 2022; 143:104036. [DOI: 10.1016/j.pnucene.2021.104036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Abassi A, Akmoum K, Kahoul A, Daoudi S, Deghfel B, Kasri Y, Derradj I, Bendjedi A, Hamidani A, Meddouh K, Sahnoune Y. Universal empirical fit to Lα, Lβ and Lγ x-ray production cross section by protons impact within updated experimental data: Three dimensional (Z-dependence), collective and individual formulae. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2021.109823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Jeong Y, Park J, Lee S, Oh SH, Kim WJ, Ji YJ, Park GY, Seok D, Shin WH, Oh JM, Lee T, Park C, Seubsai A, Sohn H. Iron oxide-carbon nanocomposites modified by organic ligands: Novel pore structure design of anode materials for lithium-ion batteries. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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Sosnov EA, Malkov AA, Malygin AA. Nanotechnology of Molecular Layering in Production of Inorganic and Hybrid Materials for Various Functional Purposes: II. Molecular Layering Technology and Prospects for Its Commercialization and Development in the XXI Century. RUSS J APPL CHEM+ 2021. [DOI: 10.1134/s1070427221090020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Iqbal MA, Wang Y, Miah MM, Osman MS. Study on Date–Jimbo–Kashiwara–Miwa Equation with Conformable Derivative Dependent on Time Parameter to Find the Exact Dynamic Wave Solutions. Fractal Fract 2022; 6:4. [DOI: 10.3390/fractalfract6010004] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this article, we construct the exact dynamical wave solutions to the Date–Jimbo–Kashiwara–Miwa equation with conformable derivative by using an efficient and well-established approach, namely: the two-variable G’/G, 1/G-expansion method. The solutions of the Date–Jimbo–Kashiwara–Miwa equation with conformable derivative play a vital role in many scientific occurrences. The regular dynamical wave solutions of the abovementioned equation imply three different fundamental functions, which are the trigonometric function, the hyperbolic function, and the rational function. These solutions are classified graphically into three categories, such as singular periodic solitary, kink soliton, and anti-kink soliton wave solutions. Furthermore, the effect of the fractional parameter on these solutions is discussed through 2D plots.
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Erat S, Braun A, Çetinkaya S, Yildirimcan S, Kasapoğlu AE, Gür E, Harputlu E, Ocakoglu K. Solution-Processable Growth and Characterization of Dandelion-like ZnO:B Microflower Structures. Crystals 2022; 12:11. [DOI: 10.3390/cryst12010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Intrinsic and dandelion-like microflower nano-rod structures of boron-doped ZnO thin films were synthesized with an ecofriendly and cost-effective chemical bath deposition technique from an aqueous solution of zinc nitrate hexahdyrate [Zn(NO3)2.6H2O] as a precursor solution and boric acid as a doping solution. The boron concentrations were 0.1, 0.3, 0.5, 1.0, 3.0, 5.0, and 7.0 by volume. Scanning electron micrographs showed that doping with boron appears to hinder the vertical alignment of crystallites. Additionally, independent hexagonal nano-rod structures were observed to coalesce together to form dandelion-like structures on the film’s surface. The atomic ratio of the elements was determined via the X-ray photoemission spectrum technique. There were no substantial changes in the vibration structure of the film upon doping in terms of the Raman spectra. The optical band gap of ZnO (3.28 eV) decreased with B doping. The band gap of the ZnO:B film varied between 3.18 and 3.22 eV. The activation energy of the ZnO was calculated as 0.051 eV, whereas that of the ZnO:B film containing 1.0% B was calculated as 0.013 eV at low temperatures (273–348 K), versus 0.072 eV and 0.183 eV at high temperatures (348–523 K), respectively. Consequently, it can be interpreted that the 1% B-doped ZnO, which has the lowest activation energy at both low and high temperatures, may find some application areas such as in sensors for gases and in solar cells.
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Subramanian M, Aldossary OM, Alam M, Ubaidullah M, Gedi S, Vaduganathan L, Thirunavukkarasu GS, Jamei E, Seyedmahmoudian M, Stojcevski A, Mekhilef S. Optimization of Antireflection Coating Design Using PC1D Simulation for c − Si Solar Cell Application. Electronics 2021; 10:3132. [DOI: 10.3390/electronics10243132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Minimizing the photon losses by depositing an anti-reflection layer can increase the conversion efficiency of the solar cells. In this paper, the impact of anti-reflection coating (ARC) for enhancing the efficiency of silicon solar cells is presented. Initially, the refractive indices and reflectance of various ARC materials were computed numerically using the OPAL2 calculator. After which, the reflectance of SiO2,TiO2,SiNx with different refractive indices (n) were used for analyzing the performance of a silicon solar cells coated with these materials using PC1D simulator. SiNx and TiO2 as single-layer anti-reflection coating (SLARC) yielded a short circuit current density (Jsc) of 38.4 mA/cm2 and 38.09mA/cm2 respectively. Highest efficiency of 20.7% was obtained for the SiNx ARC layer with n=2.15. With Double-layer anti-reflection coating (DLARC), the Jsc improved by ∼0.5 mA/cm2 for SiO2/SiNx layer and hence the efficiency by 0.3%. Blue loss reduces significantly for the DLARC compared with SLARC and hence increase in Jsc by 1 mA/cm2 is observed. The Jsc values obtained is in good agreement with the reflectance values of the ARC layers. The solar cell with DLARC obtained from the study showed that improved conversion efficiency of 21.1% is obtained. Finally, it is essential to understand that the key parameters identified in this simulation study concerning the DLARC fabrication will make experimental validation faster and cheaper.
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