Article
Chemistry, Multidisciplinary
M. M. Zeidan, S. Abedrabbo
Summary: Modified Am-241-Be neutron beams can change the optical properties of zinc oxide (ZnO) photoluminescence (PL) spectra by transmuting zinc (Zn) into gallium (Ga) after irradiation. This study investigates the time required by slow neutron irradiation to register the transmutation of Zn into Ga. Two series of samples from different suppliers (TEW Tokyo Denpa Co. Ltd., Tokyo, Japan and MTI corporation, China) are irradiated for 6, 12, 18, and 24 days on the Zn-polar face of each sample to determine the relationship between irradiation intensity and transmutation.
Article
Chemistry, Physical
V. M. Almeida Lage, R. T. da Silva, A. Mesquita, M. P. F. de Godoy, X. Gratens, V. A. Chitta, H. B. de Carvalho
Summary: Polycrystalline MnO:ZnO bulk ceramics with different Mn doping levels were prepared and analyzed for their composition, structure, and magnetic properties. Higher Mn proportion samples showed the presence of secondary phases ZnMn2O4 and Mn1-xZnxO, with heat treatment effectively reducing the valence of Mn ions and creating oxygen vacancies, but not promoting the desired ferromagnetic order at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Roman Yatskiv, Jan Grym, Sarka Kucerova, Stanislav Tiagulskyi, Ondrej Cernohorsky, Nikola Basinova, Jozef Vesely
Summary: This paper examines the effects of annealing atmosphere and temperature on defect-related emission in ZnO thin films and bulk substrates. The results demonstrate that post-annealing treatment is a powerful tool for modifying defects in ZnO and accurately tailoring emission wavelength. This research has significant implications in optoelectronics, particularly in LED, display, and biological labeling technologies.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Anton Landstrom, Alessandro Gradone, Raffaello Mazzaro, Vittorio Morandi, Isabella Concina
Summary: The study investigated the impact of enwrapping reduced graphene oxide (rGO) in ZnO hierarchical microstructures on the photocatalytic performance. Various characterization tools were used to evaluate the changes in physical, optical, and electrical features, revealing the complexity of using graphene derivatives as supporters of semiconducting metal oxides functionality.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Elena Gorokhova, Olga Dymshits, Ivan Venevtsev, Liza Basyrova, Irina Alekseeva, Alexander Khubetsov, Mikhail Baranov, Marina Tsenter, Aleksander Zhilin, Sergey Eron'ko, Eugenia Oreschenko, Faina Muktepavela, Karlis Kundzins, Pavel Loiko
Summary: In this study, zinc oxide optical ceramics containing 0-2 wt% ytterbium were prepared, with Yb2O3 acting as an inhibitor for ZnO grain growth. The ceramics exhibit transmittance up to 60% in the visible region and their infrared transmission is determined by free charge carrier absorption. Additionally, under X-ray excitation, intense luminescence bands are observed in the blue and green regions, with Yb2O3 causing a redistribution of luminescence intensity and faster emission decay.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Danil V. Barilyuk, Ekaterina V. Sukhanova, Zakhar I. Popov, Artem A. Korol, Anton S. Konopatsky, Dmitry V. Shtansky
Summary: A method for fabricating ZnO/h-BN composites with tunable photoluminescence characteristics is reported. The h-BN support enhances the UV emission of ZnO nanoparticles and changes the electronic structure of the ZnO surface. Replacing h-BN nanoparticles with h-BN microparticles increases the UV photoluminescence and decreases the visible light emission. The dependence of the photoluminescence properties on the thickness of h-BN carriers is explained by the change in the dielectric constant. Density functional theory calculations show hybridization at the h-BN/wZnO interface and an increase in absorption peak intensity with an increase in the number of h-BN layers. These results open new possibilities for controlling the properties of ZnO/h-BN heterostructures for optical applications.
Article
Engineering, Electrical & Electronic
Lakshmi Kumari, Asit Kumar Kar
Summary: A series of ZnO nanomaterials were synthesized using chemical co-precipitation method with fixed proportions of precursors and varied solvents. The choice of solvent significantly influenced the morphology, absorption and photoluminescence properties of the nanomaterials, with alcoholic solutions showing more absorption in the visible range and particularly intense blue emission. The mechanism of solvent-mediated defect creation and emission in ZnO holds promise for future QD LED applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
George Tzvetkov, Martin Tsvetkov, Tony Spassov
Summary: A novel hierarchically-structured edelweiss-like ZnO microparticles were successfully fabricated using a single-step wet-chemical synthetic approach. The photoluminescence properties of the microparticles were analyzed, showing intense UV-violet emission at room temperature and predominant UV-violet-blue co-emission after low-temperature annealing. The relationship between the photoluminescence properties and intrinsic defects in ZnO was examined in this study.
Article
Engineering, Electrical & Electronic
G. V. Colibaba, D. Rusnac, N. Costriucova, O. Shikimaka, E. V. Monaico
Summary: A new technological approach for sintering Al-doped ZnO ceramics has been developed using chemical vapor transport (CVT) based on HCl. This approach offers advantages such as low sintering temperature, absence of diameter deviation, and excess Zn presence. The influence of dopant powder, Al concentration, and stoichiometric deviation on the density and conductive properties of ceramics has been investigated.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Tian Tian, Liaoying Zheng, Slavko Bernik, Zhenyong Man, Xue Shi, Xuezheng Ruan, Guorong Li
Summary: Novel ZnO-Cr2O3-based varistors can solve the issues related to volatile, high-cost and toxic components in traditional ZnO-Bi2O3, ZnO-Pr6O11, and ZnO-V2O5-based varistors. The influence of different doping levels of Cr2O3 on the microstructure and electrical properties of varistors was studied, and the optimal amount of Cr2O3 doping to enhance the electrical performance was determined. The results showed that 0.1 mol.% of Cr2O3 is optimal for obtaining improved electrical properties, with increased nonlinearity coefficient (alpha = 73) and lower leakage current (IL < 0.2 mu A/cm2) in ZnO-Cr2O3-based varistors at an applied electric field of 383 V/mm. Larger additions of Cr2O3 lead to the formation of a Ca3(CrO4)2 phase, causing a decrease in barrier height, lower alpha and increased IL.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Multidisciplinary
R. T. da Silva, J. M. Morbec, G. Rahman, H. B. de Carvalho
Summary: This study presents a systematic investigation on the preparation of Co:ZnO ceramics using different Co precursors and atmospheres. The focus was on defect chemistry engineering and sintering growth kinetics. Theoretical calculations and microstructural characterization were used to determine the optimal parameters and sintering additives for achieving desired grain sizes and distributions.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
R. Munirathnam, S. M. Rumana Farheen, S. Manjunatha, H. C. Manjunatha, Y. S. Vidya, K. N. Sridhar, L. Seenappa, S. Veera Rethina Murugan, S. Krishnaveni
Summary: Zinc-doped cerium oxide nanoparticles with varying molar concentrations (1-11 mol%) were successfully synthesized using Tulsi leaf extract as a reducing agent. The obtained nanoparticles were characterized and confirmed to have a cubic fluorite structure. Increasing zinc doping concentration resulted in a direct transition in band gap and showed potential for display applications. Furthermore, these nanoparticles exhibited excellent specific capacitance for supercapacitor applications.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Materials Science, Multidisciplinary
F. Felix-Dominguez, R. C. Carrillo-Torres, R. Sanchez-Zeferino, M. E. Alvarez-Ramos
Summary: ZnO-ZnS-SiO2 composites were synthesized using ultrasound-assisted Stober method, allowing for tunable emission. SEM images showed star-shaped ZnO structures with multiple spindles, measuring approximately 1 μm in length. The composition was confirmed through EDS, FT-IR, and Raman spectroscopies. X-ray diffraction analysis revealed hexagonal wurtzite and cubic sphalerite crystal structures for ZnO and ZnS, respectively. The estimated band gap values were 3.61 eV for ZnS, 3.13 eV for ZnO, and 3.21 eV for the composites. The emission spectra exhibited weak excitonic signals and broad bands, with a range of colors from orange to blue as the ZnS content increased, allowing for white light generation.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Ceramics
Asma Hashim, Muhammad Aadil, Qurshia Choudhry, Sidra Mubeen, Briha Zainab, H. H. Somaily, Kashuf Shafiq, Muhammad Usman, Mohd Zahid Ansari, Rasha M. K. Mohamed
Summary: In this study, a wet-chemical synthesis method was used to prepare a novel ferromagnetic nickel-doped zinc oxide (Zn1-xNixO) nanocatalyst. The effects of the nickel dopant on the structural, optical, morphological, and electrical properties of the synthesized Zn1-xNixO nanocatalyst were investigated. The results showed that the Ni-doping introduced structural variations, resulting in a visible-light-triggered optical band gap and enhanced current conductivity. The as-synthesized Zn1-xNixO nanocatalyst exhibited excellent photocatalytic activity, making it a promising candidate for industrial discharge treatment applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Fabiola Panto, Zainab Dahrouch, Abhirup Saha, Salvatore Patane, Saveria Santangelo, Claudia Triolo
Summary: Zinc oxide nanofibers with rich defects were produced through a combination of electrospinning, calcination, and fast cooling. These nanofibers showed excellent photocatalytic properties, with defects at the nanoplatelet interface playing a crucial role in enhancing the photocatalytic activity. The investigated nanofibers outperformed most existing electrospun pure zinc oxide photocatalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Yu Yu Bacherikov, I. Vorona, A. Zhuk, A. V. Gilchuk, N. Korsunska, I. Markevich
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2017)
Article
Engineering, Electrical & Electronic
L. Borkovska, L. Khomenkova, I. Markevich, M. Osipyonok, T. Stara, O. Gudymenko, V. Kladko, M. Baran, S. Lavoryk, X. Portier, T. Kryshtab
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Materials Science, Multidisciplinary
Lyudmyla Borkovska, Larysa Khomenkova, Iryna Markevich, Mykola Osipyonok, Oleksandr Kolomys, Serhii Rarata, Oleksandr Oberemok, Olexandr Gudymenko, Andriy Kryvko, Victor Strelchuk
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2018)
Article
Physics, Condensed Matter
Yu. Yu. Bacherikov, I. P. Vorona, I. V. Markevich, N. O. Korsunska, R. V. Kurichka
SOLID STATE COMMUNICATIONS
(2018)
Article
Optics
V. I. Kushnirenko, I. V. Markevich, T. V. Zashivailo
JOURNAL OF LUMINESCENCE
(2012)
Article
Optics
I. Markevich, A. Zhuk, T. Stara, Yu. Bacherikov, N. Korsunska
JOURNAL OF LUMINESCENCE
(2014)
Article
Chemistry, Multidisciplinary
V. I. Kushnirenko, I. V. Markevich, B. M. Bulakh, T. V. Zashivailo, I. G. Shamis
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2011)
Article
Physics, Condensed Matter
I. V. Markevich, T. R. Stara, A. V. Kuchuk, Yu. O. Polishchuk, V. P. Kladko
PHYSICA B-CONDENSED MATTER
(2014)
Article
Nuclear Science & Technology
V. I. Kushnirenko, I. V. Markevich, A. V. Rusavsky
RADIATION MEASUREMENTS
(2010)
Article
Engineering, Electrical & Electronic
N. Korsunska, L. Borkovska, Yu Polischuk, O. Kolomys, P. Lytvyn, I Markevich, V Strelchuk, V Kladko, O. Melnichuk, L. Melnichuk, L. Khomenkova, C. Guillaum, X. Portier
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2019)
Article
Physics, Multidisciplinary
N. O. Korsunska, I. V. Markevich, T. R. Stara, L. V. Borkovska, S. Lavoryk, L. Yu. Melnichuk, O. V. Melnichuk
UKRAINIAN JOURNAL OF PHYSICS
(2018)
Proceedings Paper
Materials Science, Multidisciplinary
I. Markevich, T. Stara, O. Kolomys, A. S. Romanyuk, V. Strelchuk
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 11, NO 9-10
(2014)
Article
Physics, Condensed Matter
I. V. Markevich, V. I. Kushnirenko, L. V. Borkovska, B. M. Bulakh, M. K. Sheinkman, I. V. Prokopenko
SOLID STATE COMMUNICATIONS
(2007)
Article
Materials Science, Multidisciplinary
Iryna Markevich, Tetyana Stara, Larysa Khomenkova, Volodymyr Kushnirenko, Lyudmyla Borkovska
AIMS MATERIALS SCIENCE
(2016)
Article
Physics, Condensed Matter
Shivani Gohri, Jaya Madan, Rahul Pandey
Summary: This study improves the efficiency of SnS-based solar cells by implementing the glancing angle deposition approach and introducing a CZTSSe layer. The findings offer valuable insights for enhancing the design of SnS-based solar cells and making them more efficient.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Mahboubeh Yeganeh, Davoud Vahedi Fakhrabad
Summary: The lattice thermal conductivity of CdO monolayer was investigated, and it was found to be lower than that of bulk CdO due to the lower phonon lifetime and phonon group velocity. As a result, the monolayer exhibits higher thermoelectric efficiency compared to the bulk counterpart.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Shivam Srivastava, Prachi Singh, Anjani K. Pandey, Chandra K. Dixit
Summary: In this research paper, a novel equation of state (EOS) based on finite strain theories is proposed for predicting the thermo elastic properties of various materials. Extensive analysis and comparison with existing models and experimental data demonstrate the validity and effectiveness of the proposed EOS in capturing the unique thermodynamic behavior of nanomaterials, bulk metallic glasses, and superconductors. This research is of great importance in the fields of materials science, nanotechnology, and condensed matter physics.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Subrata Das, Sanjoy Kr Mahatha, Konstantin Glazyrin, R. Ganesan, Suja Elizabeth, Tirthankar Chakraborty
Summary: In this study, we investigated the structural evolution of Tb2Ti2O7 under external pressure and temperature, and confirmed the occurrence of an isostructural phase transition beyond 10 GPa pressure. This transition leads to changes in lattice parameters and mechanical properties, which can be understood in terms of localized rearrangement of atoms.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Hamze Mousavi
Summary: It has been found that undoped graphene sheet has zero states at the Fermi energy level, making it difficult for Cooper pairing to occur in the superconductive state. However, T-graphene, with physical properties similar to graphene, exhibits metallic behavior and has available electron states near the Fermi level. The gap equation for the s-wave superconductive state is derived based on the attractive Hubbard model and the Bogoliubov de Gennes equation for this two-dimensional metallic system. It is found that a nonzero critical temperature, τ, exists for different levels of electron-electron interaction, ǫ. τ has higher values when the system has electronic half band-filling, but decreases when the system does not have half band-filling. However, τ vanishes when ǫ becomes small enough near the band edges.
SOLID STATE COMMUNICATIONS
(2024)
