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
Chemistry, Multidisciplinary
G. El Fidha, N. Bitri, F. Chaabouni, S. Acosta, F. Guell, C. Bittencourt, J. Casanova-Chafer, E. Llobet
Summary: Dysprosium-doped zinc oxide thin films were prepared and characterized using various techniques to analyze their structure, optical properties, and catalytic performance. The results showed that with increasing dysprosium doping, the bandgap energy values of the films decreased, leading to improved catalytic degradation efficiency.
Article
Engineering, Electrical & Electronic
Ankur Rana, Abhishek Sharma, Suraj P. Khanna, R. Srivastava, C. K. Suman
Summary: Solution-processed Mg-doped ZnO nanoparticles were synthesized and characterized. The optical properties of Mg-doped ZnO thin films were investigated, showing an increase in band gap and a decrease in conductivity with Mg concentration. The use of Mg-doped ZnO thin films as electron transport layer in perovskite photodetectors resulted in significantly improved responsivity compared to ZnO thin film.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
R. C. Ramola, Sandhya Negi, Mukesh Rawat, R. C. Singh, Fouran Singh
Summary: Zinc oxide (ZnO) is a versatile material with high thermal conductivity, electron mobility, wide band gap, and exciton binding energy, making it suitable for various device applications. Among these applications, gallium-doped ZnO thin films annealed at 700 degrees Celsius show the highest sensitivity and shortest response and recovery time for ethanol and acetone gases, demonstrating the potential for gas sensing applications.
Article
Materials Science, Ceramics
Hoa T. Dao, Hisao Makino
Summary: The effects of substrate temperature on the thermal stability of Al-doped ZnO (AZO) films were studied. It was found that a thin AlOx capping layer can prevent thermal degradation and the reduction in carrier concentration. The correlation between Zn desorption and reduction in carrier concentration was observed, with the AlOx layer successfully preventing thermal desorption of Zn.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Sunil Babu Eadi, Han Yan, P. Senthil Kumar, Yuvakkumar Rathinam, Hi-Deok Lee
Summary: In this study, the performance of IGZO-decorated ZnO films for the detection of NO2 gas was investigated by changing the IGZO deposition time. The results showed that decorating ZnO with IGZO can significantly increase the sensor response.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Phung Dinh Hoat, Van Khoe Vo, Sung-Hoon Bae, Hyo-Jun Lim, Dang Thi Huong Thao, Pham Tien Hung, Nguyen Manh Hung, Nguyen Van Hoang, Joon-Hyung Lee, Young -Woo Heo
Summary: An effective ammonia sensor was developed using a CsPbBr3 thin film prepared directly by dual-source thermal evaporation. The sensor exhibited good selectivity toward ammonia gas at room temperature, with high responsivity (958% at 10 ppm) and low detection limit (250 ppb). It also showed good reversibility, repeatability, and fast response/recovery times (12/16 s). The effect of humidity on the sensor's performance was investigated, and the ammonia-sensing mechanism of the CsPbBr3 film was proposed and discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Nizar Ben Moussa, Mohamed Lajnef, Nessrine Jebari, Cedric Villebasse, Fabien Bayle, Julien Chaste, Ali Madouri, Radouane Chtourou, Etienne Herth
Summary: In this study, low-cost sol-gel spin-coating technique was used to synthesize eco-friendly ZnO multilayer films with excellent optical properties and specific orientation suitable for piezoelectric applications. The ZnO sol-gel thin-films using precursor solutions of molarity 0.75 M exhibited an average optical transparency above 98% and an optical band gap energy of 3.42 eV, showing potential for eco-friendly and cost-effective applications in complementary metal-oxide-semiconductor (CMOS) and integrated circuits (IC).
Article
Materials Science, Multidisciplinary
Weon Cheol Lim, Jitendra Pal Singh, Younghak Kim, Jonghan Song, Keun Hwa Chae, Tae-Yeon Seong
Summary: The study shows that thermal annealing significantly affects the properties of zinc oxide thin films, including relaxation of stress, variation in optical band-gap, and occurrence of vacancies and defects. These changes are revealed through X-ray techniques, providing a better understanding of the performance changes in zinc oxide films.
Article
Chemistry, Physical
Guanglu Lei, Zishuo Li, Guocai Lu, Jinyuan Hu, Haochuan Shang, Xiaolei Zhang, Xianghong Liu, Jun Zhang, Xiangxin Guo
Summary: Metal oxide semiconductor (MOS) thin films, especially tungsten oxide (WO3) thin films, have shown great potential as sensing layers for gas sensor devices. This study focuses on the deposition and annealing process of WO3 thin films on interdigital electrodes, and explores the impact of oxygen vacancies on sensor properties. The results indicate that the WO3 sensor annealed at 500 degrees C exhibits the best performance in detecting triethylamine (TEA), which is attributed to the enhanced adsorption of oxidative oxygen species due to the presence of abundant oxygen vacancies.
JOURNAL OF MATERIOMICS
(2022)
Article
Engineering, Electrical & Electronic
Mengyun Peng, Pingchun Guo, Hedong Jiang, Jiake Li, Hua Zhu, Jian Sun, Yanxiang Wang
Summary: A simple and effective method was developed to improve the properties of zinc oxide (ZnO) thin films. The addition of nitrogen (N) and the reduction of oxygen vacancy defects were confirmed after the ammonia water vapor treatment. The treatment resulted in a more uniform distribution of grains in the samples, with a slight increase in particle size. The light transmittance increased and the thin-film resistivity decreased significantly, making the ZnO films more suitable for various applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Physics, Condensed Matter
Emre Sener, Ozkan Bayram, Ugur Cem Hasar, Onder Simsek
Summary: The annealing temperature significantly affected the crystallite size and optical transmittance of ZnO thin films, with the crystallite size decreasing as the temperature increased. The transmittance of ZnO thin films ranged from 85% to 95% at a wavelength of 550 nm.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Multidisciplinary
Yijun Yang, Bohee Maeng, Dong Geon Jung, Junyeop Lee, Yeongsam Kim, JinBeom Kwon, Hee Kyung An, Daewoong Jung
Summary: The study focuses on the performance of SnO2 thin film sensors for H-2 gas, revealing that annealed films exhibit higher response and shorter response time.
Article
Chemistry, Physical
M. Popa, L. C. Pop, G. Schmerber, C. Bouillet, O. Ersen
Summary: Poly crystalline Holmium-doped zinc oxide thin films were successfully prepared using sol-gel method. The films exhibited changes in particle size, morphology, and band gap with increasing Ho concentration, demonstrating a direct link between Ho emission and its incorporation in the ZnO matrix.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Seung-Hyun Lim, Ick-Joon Park, Hyuck-In Kwon
Summary: The effects of rapid thermal annealing (RTA) temperature on the NO2 gas sensing properties of p-type SnOX thin films were investigated. The amount of SnO2 components increased with increasing RTA temperature, but the highest amount of oxygen vacancy (OVac) states was observed in the SnOX thin film annealed at 250 degrees C. The SnOX thin film subjected to RTA at 250 degrees C exhibited significantly higher maximum sensing response to NO2 than those treated at 200 degrees C or 300 degrees C, attributed to the larger amount of SnO2 and OVac in the thin film and the presence of defects and cracks on the film surface.
CERAMICS INTERNATIONAL
(2023)
Article
Fisheries
Camila Oliveira Paranhos, Luanna do Carmo Neves, Walisson Souza e Silva, Ronald Kennedy Luz
Summary: The aim of this study was to evaluate the survival and water quality of Hypsolebias flagellatus during transportation with different salt concentrations, transport times, and previous diets. The results showed that the concentration of 4 g salt/L had the highest dissolved oxygen, and the survival rate was lower after 48 hours of transportation. Meanwhile, the type of diet also had an influence on water quality and dissolved oxygen.
JOURNAL OF APPLIED AQUACULTURE
(2023)
Article
Materials Science, Ceramics
Reginaldo Muccillo, Sabrina G. M. Carvalho, Rafael L. Denaldi, Eliana N. S. Muccillo
Summary: This study investigated the impregnation of molten Na2CO3-K2CO3 eutectic compositions into two types of ceramic materials, and evaluated the conductivity and carbonate ion permeation of the ceramics through various analyses. The research aimed to prepare dual-phase membranes for carbon dioxide separation and develop carbon dioxide sensors.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Mahmoud. S. Alkathy, Attaur Rahaman, Valmor R. Mastelaro, Fabio. L. Zabotto, Flavio Paulo Milton, J. A. Eiras
Summary: Double hysteretic loop ceramics with different polarization were achieved through B-site co-doping engineering. The sample co-doped with Mg2+ and Ni2+ exhibited higher polarization and considerable breakdown strength, resulting in a high energy storage density and efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Maria Joseita dos Santos Costa, Aline Estefany Brandao Lima, Ester Pamponet Ribeiro, Gilson dos Santos Costa, Elson Longo, Geraldo Eduardo da Luz, Laecio Santos Cavalcante, Reginaldo da Silva Santos
Summary: This paper discusses a facile method for preparing transition metal tungstate thin films and their remarkable photoelectrochemical properties. The films were deposited onto conductive fluorine-doped tin oxide (FTO) glass substrate. The results show that the films have crystalline structures and nanostructured materials. They also demonstrate indirect transitions and successful application as photoanodes in a photoelectrochemical cell under polychromatic irradiation. This work provides a comparative and comprehensive study on AWO(4) films and suggests their potential applications in water splitting reactions and other photoelectrocatalytic processes.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Polymer Science
Fernando C. M. Freire Filho, Josiane A. Santos, Alex O. Sanches, Eliton S. Medeiros, Jose A. Malmonge, Michael J. Silva
Summary: The effects of multiwall carbon nanotubes (MWCNTs) on the electrical, dielectric, and piezoelectric properties of the ferroelectric ceramic/castor-oil polyurethane (PUR) composite films were investigated. The addition of MWCNTs significantly enhanced the electrical and piezoelectric properties of the composite films by acting as conductive bridges between the lead zirconate titanate (PZT) particles. The dispersion of MWCNT nanoparticles also improved the poling effectiveness and increased the d(33) coefficient of the three-phase piezoelectric composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Medicine, General & Internal
Rocio Palomo-Carrion, Caline Cristine De Araujo Ferreira Jesus, Camila Araujo Santos Santana, Raquel Lindquist, Roselene Alencar, Helena Romay-Barrero, Elena Contell-Gonzalo, Karolinne Souza Monteiro, Elena Pinero-Pinto, Egmar Longo
Summary: The participation of adolescents with cerebral palsy in the community is reduced, affecting their socialization, self-determination, and quality of life. Patient and Public Involvement (PPI) is crucial for successful interventions, especially when stakeholders are involved at all stages of the research. Co-design, involving researchers, patients, and families, is key to bringing necessary elements to the intervention design.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Polymer Science
Luiz R. M. Lima, Guilherme F. Caetano, Viviane O. Soares, Renivaldo J. Santos, Jose A. Malmonge, Michael J. Silva, Alexander L. Yarin
Summary: The objective of this study was to develop NR-based biocomposites containing BioS and/or BL0 particles to improve their tensile response, biocompatibility, and bioactivity for biomedical applications. Morphological, tensile, thermal, and biological tests were conducted to evaluate the influence of BioS and BL0 particles on the properties of the NR matrix. The results showed that the addition of BioS or BL0 particles enhanced the tensile strength and biological properties of the NR matrix, making it suitable for various biomedical applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Biomedical
Fabio Muchenski, Jenifer Pendiuk Goncalves, Yasmin Carla Ribeiro, Celia Regina Cavichiolo Franco, Carolina Camargo de Oliveira, Bruna Hilzendeger Marcon, Anny Robert, Lia Carolina Soares de Medeiros, Ronei Cardoso de Oliveira, Adilson Jesus Aparecido de Oliveira, Ney Mattoso
Summary: NiFeMo alloy nanoparticles were synthesized through co-precipitation with organic additives. The thermal evolution of the nanoparticles showed a significant increase in size and a crystalline structure similar to Ni3Fe phase. Magnetic property measurements indicated an increase in saturation magnetization and a decrease in remanence magnetization. Cell viability assays demonstrated that the nanoparticles were not cytotoxic up to a concentration of 0.4 μg/mL for both non-tumorigenic and tumor cells.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2023)
Article
Chemistry, Medicinal
Jeronimo F. Silva, Guilherme S. L. Fabris, Julio R. Sambrano, Anderson R. Albuquerque, Ary S. Maia
Summary: We introduce TOPISO3D Viewer, a user-friendly software that generates three-dimensional maps for analyzing descriptors based on QTAIM in periodic and nonperiodic systems. The software automates topological analysis calculations through the TOPOND package and generates a report to identify descriptor values at Bond Critical Points (BCP) and Critical Points of the Laplacian of the electron density (LCP), facilitating the classification of chemical interactions. The created maps can be stored as HTML files for future reference. The software's validity was confirmed through the study of various systems with 0-3D dimensions and the reevaluation of the topology of urea molecular crystal and its isolated molecule.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Chemistry, Analytical
Rafael Aparecido Ciola Amoresi, Noemi Angelica Vieira Roza, Talita Mazon
Summary: In this study, a flexible electrochemical immunosensor based on CeO2 nanorods immobilized with CRP antibody was developed for the detection of cardiovascular disease biomarker. The CeO2 nanorods were obtained by microwave-assisted hydrothermal method and characterized by XRD, TEM, and XPS. The immunosensor's working electrode was prepared by dispersing the nanorods in organic solvent, functionalizing them with cystamine and glutaraldehyde, and then modifying them with CRP antibody. The developed immunosensor exhibited good reproducibility, a wide detection range, and a low detection limit, making it suitable for point-of-care applications.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Thiago A. Lodi, Gustavo Galleani, Leonnam G. Merizio, Luiz G. Jacobsohn, Valmor R. Mastelaro, Andrea S. de Camargo
Summary: NaPO3-20Ga(2)O(3)-xNa(2)WO(4) (x = 0, 1, 3, 5 and 10% mol) tungsten gallium-phosphate glasses were synthesized and evaluated as potential intrinsic glass scintillators due to their high chemical stability and excellent optical properties. Increasing Na2WO4 content led to a decrease in OH- groups and the presence of sole W6+ species. The glasses exhibited high transmittance (around 90%) over a wide spectral range (400 to 2500 nm) and luminescence emission characteristic of the WO42- complex with average lifetimes ranging from 32 to 20 μs. Cryogenic temperatures resulted in a significant increase in luminescence emission for the NaPGaW glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Applied
Jordan Brizi Neris, Jose Arnaldo S. Costa, Guilherme Martins Grosseli, Floriatan Santos Costa, Caio Marcio Paranhos
Summary: This study aims to evaluate the transport properties and CBZ adsorption capacities of PES/mesoparticles-based MMMs in aqueous solutions with different physicochemical characteristics. The results show that PES/SH-MCM-41-based MMMs have the highest potential for CBZ adsorption. The multivariate design results indicate that contact time, initial CBZ concentration, and the amount of SH-MCM-41 incorporated in MMM significantly influence the adsorption capacity, while pH does not affect it. Water permeability tests show a correlation between the H2O permeability and the porosity of the synthesized membranes. PES/SH-MCM-41-based MMMs exhibit high porosity and good ability to remove CBZ from water, regardless of the pH of the aqueous solutions.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Nanoscience & Nanotechnology
Krishtappa Manjunatha, Hsin-Hao Chiu, Ming-Kang Ho, Tsu-En Hsu, Shih-Lung Yu, Chu-En Chin, Chia-Liang Cheng, Marisa Carvalho de Oliveira, Elson Longo, Renan A. P. Ribeiro, Hanumanthappa Nagabhushana, Sheng Yun Wu
Summary: By using the co-precipitate method, Mg-doped CoCr2O4 nanoparticles with controlled particle size were synthesized and their properties were investigated. The magnetic inhomogeneity of the nanoparticles was identified as the cause of the observed exchange bias effect. The nanoparticles showed potential applications in magnetic memory and magnetocaloric effect fields.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Medicinal
Jeronimo F. Silva, Guilherme S. L. Fabris, Julio R. Sambrano, Anderson R. Albuquerque, Ary S. Maia
Summary: We introduce TOPISO3D Viewer, a user-friendly software that generates three-dimensional maps to analyze descriptors based on QTAIM applied in periodic and nonperiodic systems. The software automates topological analysis calculations through TOPOND package and generates a report to identify values of descriptors at BCP and LCP, facilitating chemical interaction classification. The generated maps can be stored as HTML files for later consultation. Several systems with 0-3D dimensions were studied to validate the software, and the topology of urea molecular crystal and its isolated molecule were revisited.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Chemistry, Multidisciplinary
Mariana A. M. Rezende, Pedro P. Gromboni, Patricia G. Corradini, Almir Sales, Lucia H. Mascaro
Summary: The water treatment sludge (WTS) is a complex residue that consists of organic and inorganic matter in various states. Improper disposal of WTS can negatively impact the environment, causing a decrease in dissolved oxygen and an increase in metal concentration in watercourses. This study evaluated the effects of using WTS as a substitute for natural sand in cementitious composite on the physical and mechanical properties of concrete, as well as its corrosion resistance.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2023)
