Article
Optics
Italia Vallerini Barbosa, Lauro J. Q. Maia
Summary: This study presents the synthesis, structure, and optical properties of Ge2Y2-xEuxO7 composition powders, with x ranging from 0.0 to 0.16 (equivalent to 0.0 to 4.0 mol% Eu3+). Stable and transparent sols, homogeneous gels, and powders treated at 1100 degrees C were synthesized using a soft chemical route, and the impact of Eu3+ concentrations was evaluated. Various characterization techniques were utilized to analyze the samples, including X-ray diffraction, infrared vibrational spectroscopy, Raman spectroscopy, diffuse reflectance spectroscopy, and emission and excitation photoluminescence spectroscopy. The results revealed the crystallization process, good optical quality, and visible photoluminescence emission from Eu3+ ions in the samples.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Adil Alshoaibi, Shumaila Islam
Summary: A sol-gel-based zinc doped silica-titania nanocomposite matrix coated optical fiber was prepared for pH sensing, encapsulating four different dyes to optimize formulation and enhance dynamic pH range. The matrices showed thermal stability and fast response time towards basic media, without any signs of leaching in multiple DI water measurements.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Engineering, Chemical
Ali Ihsan Kaya
Summary: This study aimed to investigate the mechanical properties of new materials produced by combining TiO2, ZnO, SiO2, and Al2O3 under pressure using the hot pressing technique. The materials were characterized using SEM, EDS, and XRD analyses, and their microhardness and tribological properties were studied. The results showed that increasing the alumina content did not significantly affect the XRD analysis, while SEM and EDS analyses revealed a two-phase structure with complex boundaries. Wear tests indicated that the depth and width of the wear track increased with the wear load. Moreover, the Ti55Si15Zn20Al10 material had the highest weight loss, and increasing the Al2O3 content reduced the weight losses. The microhardness value generally increased with the alumina content in the compounds.
Article
Polymer Science
Fei Gao, Xinyu Zhao, Jinglin Liu
Summary: Europium trivalent ion (Eu3+)-doped silica nanowires were prepared and the positioning of Eu3+ in the silicon dioxide nanowire matrix was investigated. The results indicate that Eu3+ was successfully doped into amorphous silica and exhibited high photoluminescent emission in the silica matrix.
Article
Chemistry, Physical
Aneliya Yordanova, Margarita Milanova, Reni Iordanova, Margit Fabian, Lyubomir Aleksandrov, Petia Petrova
Summary: This study investigates the influence of Bi2O3 and WO3 on the structure and optical properties of Eu3+ doped zinc borate glasses. It reveals that the synthesized glasses have red emission at 612 nm, indicating their potential as a substitute for red phosphor with high color purity.
Article
Chemistry, Physical
Wibawa Hendra Saputera, Tze Hao Tan, Emma C. Lovell, Aditya Rawal, Kondo-Francois Aguey-Zinsou, Donia Friedmann, Rose Amal, Jason A. Scott
Summary: Binary TiO2/SiO2 oxides were synthesized as supports for a Pt catalyst, with varying mole ratios of silica. Increasing the TiO2 : SiO2 ratio led to changes in specific surface area, crystal structure, and defect sites, affecting the catalytic performance for formic acid oxidation under dark conditions and following UV light pre-treatment. The Pt/1TiO(2)-2SiO(2) catalyst exhibited the highest catalytic rate, attributed to the simultaneous presence of PtOads and defect sites following UV-light pre-treatment.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Narender Kumar, Vijo Poulose, Youssef Taiser Laz, Falguni Chandra, Salma Abubakar, Abdalla S. Abdelhamid, Ahmed Alzamly, Na'il Saleh
Summary: This study investigates the effects of temperature on the photoluminescence from ZnO-SiO2 nanocomposite and successfully prepares SiO2-coated ZnO nanocrystals. The results reveal two emission bands and identify the sources of these emissions. The presence of SiO2 increases the exciton lifetime values and the occurrence of thermally induced nonradiative recombination transfer.
Article
Materials Science, Multidisciplinary
Ali Ihsan Kaya
Summary: This study investigates the addition of different wt% of B4C material to TiO2, ZnO, and SiO2 materials, resulting in the production of new materials through the hot-pressing method. The materials were characterized using XRD, SEM, and EDS. The micro-hardness and wear characteristics of the B4C-added materials were evaluated. The results showed that the intensity of the XRD peaks decreased with increasing B4C content. SEM analysis revealed a two-phase structure with complex boundaries and indefinite grain boundary formation. Additionally, the EDS results were found to support the compounds identified in XRD. The wear analyses demonstrated that as the wear load increased, the depth and width of the wear track increased in all materials. The weight loss at different wear loads decreased with an increase in the weight ratio of B4C material, with the Ti45Si15Zn20B20 material exhibiting the lowest weight loss. Furthermore, the wear track and its depth were inversely proportional to the increasing B4C content. The friction coefficients varied between different wear loads, with the highest hardness value observed in the Ti45Si15Zn20B20 material.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Multidisciplinary
Priti Singh, Ram Sagar Yadav, Shyam Bahadur Rai
Summary: Intense red photoluminescence was observed in Eu3+/Z(+) co-doped CaTiO3 perovskite phosphor materials, with XRD and SEM characterization showing increased crystallite and particle size upon alkali ion incorporation. Spectral analysis revealed different transitions and band gap changes during the doping process.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Narinder Kaur, Dipika Sharma, B. R. Mehta
Summary: 2D layers of beta-In2S3 were synthesized on different substrates using the CVD technique, with varying morphologies of In2S3 2D nanoflakes observed. In2S3 grown on ZnO substrates exhibited enhanced photoelectrochemical properties due to increased visible light absorption.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Physics, Multidisciplinary
Suhail Huzaifa Jaafar, Mohd Hafiz Mohd Zaid, Khamirul Amin Matori, Yazid Yaakob, Haslinawati Mohd Mustapha
Summary: Eu3+-doped Zn2SiO4/ZnO phosphor-based composites were prepared and the effect of Eu3+ content on their morphological and photoluminescence performance was investigated. The results showed the presence of ZnO and Zn2SiO4 crystal phases, and the existence of Zn-O-Si and Zn-O vibration modes as well as the decrease in SiO4 absorption band with the increase in Eu3+ concentration. In addition, the UV-Vis absorption spectra of the composites exhibited a red shift absorption edge, and the photoluminescence spectrum showed red shift light emissions associated with the Zn2SiO4 and ZnO crystal phases.
BRAZILIAN JOURNAL OF PHYSICS
(2022)
Article
Chemistry, Physical
Sviatoslav Vovk, Samuel Dobak, Jan Fuzer, Peter Kollar, Radovan Bures, Maria Faberova
Summary: This study investigates the magnetic properties of soft magnetic composites (SMCs) based on Fe/SiO2/ferrite at different temperatures. The results show that an increase in temperature affects the magnetic properties, necessitating consideration of the temperature effect. By analyzing energy losses and using the Statistical Theory of Losses, the magnetic properties at different ferrite contents and temperatures are studied. Frequency-temperature maps reveal a decrease in relative permeability values above 125 degrees C, associated with the Curie temperature of ferrite. It is found that the composite with 2% ferrite achieves excellent magnetic properties, with an initial relative permeability of 84 and energy loss of 57 J/m3.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
K. H. Mahmoud, Khaled A. Elsayed, E. A. Abdel Wahab, Farid M. Abdel-Rahim, Kh S. Shaaban
Summary: The preparation, structure, and properties of pentaglasses with different compositions were studied, and their mechanical characteristics were evaluated. The radiation shielding efficiency of these glasses was investigated using different programs, revealing an abnormal relationship between attenuation, structure, and density.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Tongshan Lu, Jinpeng Lv, Chenghua Wang
Summary: Hydrogenation significantly improves the radiation stability of Ga2O3, while only slightly affects ZnO and TiO2. Oxygen deficient defects and grain size play vital roles in tuning the radiation tolerance of metal oxide semiconductors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Mioara Zagrai, Ramona-Crina Suciu, Simona Rada, M. E. Pica, Stela Pruneanu
Summary: The new glass system with Eu-doped lead-based glasses was studied for optical devices applications, revealing its vitreous structure and optical properties through various spectroscopic analyses, indicating its potential for w-LED applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Optics
L. R. R. Nunes, H. P. Labaki, F. J. Caixeta, R. R. Goncalves
Summary: This research highlights the highly intense NIR emissions of Pr3+, Yb3+ co-doped yttria nanoparticles, synthesized via the homogeneous precipitation method. The study reveals the lattice expansion due to the replacement of Y3+ by Pr3+ and Yb3+ ions, as well as the energy transfer process involving UV-Vis and NIR to NIR energy conversion between the doping ions and the host. These findings suggest the potential of these nanoparticles for application in biophotonics and deep-tissue imaging using NIR I and NIR II biological windows.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Joacilia Mazzini Marques de Souza, Karmel de Oliveira Lima, Jefferson Luis Ferrari, Lauro June Queiroz Maia, Rogeria Rocha Goncalves, Rodrigo Ferreira Falci, Danilo Manzani
Summary: Glass and glass-ceramics containing nanocrystals of Bi2Te4O11 cubic phase co-doped with Er3+ and Yb3+ were prepared and investigated for optical applications. The results showed that the co-doping of Yb3+ ions significantly improved the photoluminescence performance of Er3+ ions, and controlled heat treatment resulted in transparent glass-ceramics.
DALTON TRANSACTIONS
(2022)
Article
Optics
Emanuel P. Santos, Celio V. T. Maciel, Rodrigo F. da Silva, Daniel F. Luz, Jefferson F. Silva, Carlos Jacinto, Lauro J. Q. Maia, Francisco G. Rego-Filho, Andre L. Moura
Summary: Photon avalanche is a mechanism for exciting rare-earth ions, which can be achieved through cross-relaxation mechanisms at specific excitation wavelengths and temperatures. In this study, the PA-like phenomenon was observed in NdAl3(BO3)(4) particles with increasing excitation power at fixed temperatures. By iteratively doubling the population of excited Nd3+ ions and followed by resonant excited-state absorption, the excitation power threshold can be reduced. Additionally, we demonstrate for the first time the possibility of triggering the PA-like mechanism by increasing temperature at a fixed excitation power.
JOURNAL OF LUMINESCENCE
(2022)
Article
Optics
Daniel F. Luz, Rodrigo F. da Silva, Celio V. T. Maciel, Gabriela Soares, Emanuel P. Santos, Carlos Jacinto, Lauro J. Q. Maia, Bismarck C. Lima, Andre L. Moura
Summary: In recent years, an unconventional excitation method of Nd3+ ions at 1064 nm has been investigated, demonstrating a photon-avalanche-like (PA-like) mechanism that is facilitated by temperature increase. NdAl3(BO3)4 particles were used as a proof-of-concept. This mechanism enhances the absorption of excitation photons and enables light emission across a broad range of visible and near-infrared spectra. Furthermore, the PA-like mechanism has been switched on by an auxiliary beam at 808 nm for the first time, utilizing the additional heating through phonon emissions from Nd3+ relaxation pathways. These findings have potential applications in controlled heating and remote temperature sensing.
Article
Materials Science, Ceramics
Amanda Maria Claro, Caroline Cassia Alves, Kelvin Sousa dos Santos, Euzane Gomes da Rocha, Marina de Lima Fontes, Gustavo Claro Monteiro, Gustavo Senra Goncalves de Carvalho, Jose Mauricio Almeida Caiut, Andrei Moroz, Sidney Jose Lima Ribeiro, Hernane S. Barud
Summary: Tissue engineering is a multidisciplinary field that aims to improve health and quality of life by restoring tissue and organ functions. Cells and scaffolds are the major components of tissue engineering, and 3D porous scaffolds are more suitable for tissue regeneration. In this study, a regenerated cellulose sponge was used as a sacrificial template to synthesize a three-dimensional porous alumina-silica scaffold.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
York E. Serge-Correales, David Neumeyer, Sajjad Ullah, Robert Mauricot, Qilin Zou, Sidney J. L. Ribeiro, Marc Verelst
Summary: In this study, oleic acid-stabilized ZnGa2O4 nanoparticles were successfully synthesized with controlled size and monodispersity. The size and persistent luminescence of the nanoparticles could be further increased using a seed mediated approach. Surface modification strategies involving poly(acrylic acid) or cysteamine in conjunction with BF4- provided long-term colloidal stability and enhanced persistent luminescence.
Article
Materials Science, Multidisciplinary
Filipe A. Couto, Kelly T. Paula, Moliria V. Santos, Sidney J. L. Ribeiro, Cleber R. Mendonca
Summary: Periodic dielectric structures have the potential to control light propagation at micro-and nanoscale efficiently with low losses. Among various techniques, femtosecond Laser-Induced Forward Transfer (fs-LIFT) is a promising method due to its simplicity and ability to process different materials while maintaining their integrity. In this work, well-ordered periodic arrays of silk fibroin (SF) microstructures were successfully printed using fs-LIFT. Finite-element simulations were performed to study their response to electromagnetic radiation in the near to mid-infrared range with consideration of the substrate. The results showed a decrease in reflectivity, which was supported by experimental results. Coating the structures with a higher index dielectric material further enhanced the decrease in reflectivity in the mid-infrared range. This study demonstrates a straightforward approach to fabricate ordered arrays of SF microstructures, which have potential applications as controllable reflectivity coatings in the near to mid-infrared range.
Review
Polymer Science
Thales Alves Faraco, Marina de Lima Fontes, Rafaella Takehara Paschoalin, Amanda Maria Claro, Isabella Salgado Goncalves, Mauricio Cavicchioli, Renan Lira de Farias, Marco Cremona, Sidney Jose Lima Ribeiro, Hernane da Silva Barud, Cristiano Legnani
Summary: With the progress of nanotechnology, organic electronics have gained momentum, especially in the production and development of electronic devices based on organic semiconductors. In recent years, there has been great interest in using organic electronics in various fields, including biomedicine. Bacterial nanocellulose (BNC) has attracted attention as an advanced material for its unique physical and mechanical properties, making it a versatile substrate for organic electronics applications. This review focuses on BNC production methods, properties, and applications, particularly in OLEDs and flexible OLEDs (FOLEDs), and discusses the future progress of BNC-based flexible substrate nanocomposites.
Article
Chemistry, Physical
Allison R. Pessoa, Jefferson A. O. Galindo, Luiz F. dos Santos, Rogeria R. Goncalves, Stefan A. Maier, Leonardo de S. Menezes, Anderson M. Amaral
Summary: Lanthanide-doped single dielectric nanoparticles are used for nanoscale temperature sensing with high resolution. However, the low number of emitters in individual nanocrystals requires higher excitation power densities, which can cause overlapping emissions and affect temperature measurements. This study demonstrates a method to separate and correct these overlapping bands, resulting in improved temperature readout accuracy and corrected thermal artifacts.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Beatriz Damasio de Freitas, Bruno Seiki Domingos Onishi, Fabio Jose Caixeta, Ricardo Bortoletto-Santos, Francis Dayan Rivas Garcia, Younes Messaddeq, Sidney Jose Lima Ribeiro
Summary: In this study, an organic-inorganic hybrid (OIH) was successfully synthesized using mild conditions, based on castor oil (CO)-derived urethanesil (Ut), as well as incorporating and interacting with europium beta-diketone [Eu(tta)3(H2O)2]. The CO-based OIH-Ut films exhibited high transmittance in the visible and infrared spectrum (90%), while urethanesil showed photoluminescence (PL) with emission at 416.0 nm when excited at 319.0 nm. The results also demonstrated an increase in the intrinsic quantum yield of PL (QEuL) for [Eu(tta)3(H2O)2], from 27% for the isolated complex to 49% when incorporated into OIH-Ut.
Article
Chemistry, Physical
Fernando E. E. Maturi, Anuraag Gaddam, Carlos D. S. Brites, Joacilia M. M. Souza, Hellmut Eckert, Sidney J. L. Ribeiro, Luiis D. Carlos, Danilo Manzani
Summary: Glasses with tunable properties are versatile materials for optical technologies. To design new optical glasses, understanding the correlation between their chemical composition and physical properties is crucial. We demonstrate the feasibility of using fluoride phosphate glasses co-doped with Pr3+ and Yb3+ ions for temperature sensing. These glasses have high stability and act as luminescent thermometers without the need for recurring calibration. They exhibit competitive thermal sensitivity and uncertainty, making them promising for cost-effective and accurate temperature probes, advancing photonic technologies.
CHEMISTRY OF MATERIALS
(2023)
Article
Energy & Fuels
Marivone Gusatti, Daniel A. R. Souza, Sidney J. L. Ribeiro, Marcelo Nalin
Summary: In this study, a novel all-solid-state electrochromic device (ECD) was prepared using a cost-effective and industrially applicable spray coating technique, eliminating the use of indium tin oxide (ITO), tungsten(VI) oxide (WO3), and Li+ or any other liquid/gel electrolytes. The fabricated ECD demonstrated a reversible color change between a light-blue (off) and darkblue (on) state, with good and homogeneous contrast. The device exhibited a coloration efficiency of 174.62 cm2/C and cycle stability for at least 150 times.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Chemistry, Inorganic & Nuclear
Mateus Grecco Manfre, Hayra do Prado Labaki, Vitor dos Santos de Souza, Rogeria R. Goncalves
Summary: In this study, Eu3+- or Nd3+-doped lanthanum niobate systems were synthesized via a sol-gel route and their structural and luminescence properties were evaluated. The Eu3+ ions predominantly occupied the C-2 symmetry sites in the LaNbO4 host lattice, while Nd3+ ions occupied distinct symmetry sites in either La3NbO7 or LaNbO4. Eu3+-doped samples have potential applications in the lighting field, while Nd3+-doped samples could be used as solid-state lasers and biomarkers.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Qing Cai, Fengrui Li, Linfeng Zhang, Huadong Wu, Kun Wu, Jia Guo
Summary: In this study, a novel AgSCN/Bi2WO6 heterojunction composite was successfully synthesized, which significantly improved the photocatalytic performance by establishing the heterojunction structure. Among them, the 50%AgSCN/Bi2WO6 composite achieved the highest photocatalytic H-2 production. The optical and electrochemical characterization results indicated that the introduction of AgSCN reduced the charge carrier recombination rate in Bi2WO6. Possible mechanisms for the excellent photocatalytic performance of the AgSCN/Bi2WO6 composite are discussed.
SOLID STATE SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Hayra do Prado Labaki, Fabio Jose Caixeta, Natasha Policei Marques, Eder Jose Guidelli, Rogeria Rocha Goncalves
Summary: Radioluminescence and visible photoluminescence tunability features were observed from a single Tm3+-doped yttrium tantalate phosphor prepared by a soft sol-gel method. The crystalline phase and annealing temperature had significant effects on the optical properties of Tm3+. The Tm3+-doped yttrium tantalates exhibited potential for photonic applications, particularly in integrated w-LED systems.
DALTON TRANSACTIONS
(2022)
Article
Materials Science, Multidisciplinary
Yanbin Wang, Xinyou Huang, Ziqiu Cheng, Penghui Chen, Yuyang Chen, Junhao Ye, Haohong Chen, Zhenzhen Zhou, Denis Yu Kosyanov, Jiang Li
Summary: Uniform Al2O3-Ce:LuAG composite phosphor ceramics (CPCs) with excellent luminescent properties and thermal stability have been successfully synthesized in this study, showing great potential for application in solid-state laser lighting.
Article
Materials Science, Multidisciplinary
Syed Muhammad Ali Zaidi, Mazhar Ali Kalyar, Zulfiqar Ali Raza, Aayesha Shoukat, Rubaila Waseem, Muhammad Aslam
Summary: Polyvinyl alcohol (PVA) nanocomposite strips embedded with graphene nanosheets and copper-ferrite nanoparticles were synthesized using solution casting technique. Laser pulse irradiations were then applied to modify the structural, optical, and electrical properties of the strips, showing potential for optoelectronic devices.
Article
Materials Science, Multidisciplinary
Yunru Chen, Jialing Wu, Jiajia Wang, Shihui Ma, Hongwei Yu
Summary: This paper investigates the angular non-critical phase-matching second-harmonic-generation properties of Ba3(ZnB5O10)PO4 crystal and explores its potential applications in the output spectral regions.
Article
Materials Science, Multidisciplinary
Qun Jing, Menglin Zhu, Lu Li, Xu Ji, Haiming Duan, Henglei Chen, Ming-Hsien Lee
Summary: The paper introduces two new nonlinear optical materials, MZnPO4 (M = Rb, Cs), synthesized by cation substitution. These materials exhibit a honeycomb-like structure and show mild SHG responses with short absorption edges. The thermal properties, IR spectra, and theoretical calculations of the materials are also discussed.
Article
Materials Science, Multidisciplinary
Camila Ianhez-Pereira, Akhil Kuriakose, Ariano De Giovanni Rodrigues, Ana Luiza Costa Silva, Ottavia Jedrkiewicz, Monica Bollani, Marcio Peron Franco de Godoy
Summary: This study aims to evaluate the crystalline changes induced by ultrafast laser micromachining on manganese oxide thin films using micro-Raman spectroscopy. The results show that laser-writing is effective in locally modifying low-crystallinity films and increasing crystallite sizes, highlighting an interesting approach to evaluate laser-induced structural modifications on metal oxide thin films.
Article
Materials Science, Multidisciplinary
Kamal Bansal, Neeraj Kumar Mishra, Ibrahim Abdullahi, Param Jeet Singh, Mohit Tyagi, Sukhpal Singh
Summary: A novel Sm3+ activated oxyfluoride glass was synthesized and its structure and properties were analyzed. The glass showed potential applications in lasers, optical temperature sensing, and high-energy scintillators.
Article
Materials Science, Multidisciplinary
Xingjian Wang, Zhixu Wu, Jiawei Zhu, Yubin Kang, Mengqiang Cai, Yong Xia, Hui Deng
Summary: Antimony sulfide (Sb2S3) has been investigated as a promising material for visible light photodetectors due to its non-toxicity, stability, and high absorption coefficient. In this study, we systematically explored the impact of key parameters on the performance of Sb2S3 devices using simulation and successfully fabricated self-powered photodetectors with high responsivity and specific detectivity. Furthermore, we demonstrated the application of the Sb2S3 detector in a scanning imaging system, showcasing its potential for developing new types of visible light detectors and imaging systems.
Article
Materials Science, Multidisciplinary
O. I. Sallam, R. M. Ahmed
Summary: The 20NaF-60P2O5-20Na2O fluorophosphate glass systems doped with 3 wt% of CoO and NiO were investigated for their optical parameters before and after gamma irradiation. The presence of defects within the glass network and the addition of transition metals were found to affect the properties of the composites. After irradiation, a red shift was observed in the dissipation factor spectrum. The energy lost at the surface of the composites was larger than the energy lost within the constituent materials. All investigated composites showed insulating behavior and exhibited increased nonlinear optical parameters after irradiation, with the CoO-doped composite showing the highest values.
Article
Materials Science, Multidisciplinary
Fahimeh Ahmadi, Zeinab Ebrahimpour, Asghar Asgari, Bao Van
Summary: In this study, Er3+-doped sulfophosphate glasses containing titanium nanoparticles (TiO2 NPs) and different concentrations of silver nanoparticles (AgNPs) were synthesized. The impact of AgNPs on the physical and structural characteristics, optical absorption and emission features, and photocatalytic activity of the glasses were investigated. The results showed that the addition of AgNPs enhanced the emission intensity of the glasses, with the system containing 0.04 mol% of AgNPs exhibiting optimal performance. Furthermore, the presence of AgNPs and TiO2 NPs in the glass matrix positively affected the photocatalytic performance.
Article
Materials Science, Multidisciplinary
Zhuang Li, Rongfei Huang, Wei Yuan, Shaoqiang Zheng, Wenlu Liao, Huiying Xu, Zhiping Cai
Summary: This study reports the first realization of an 868 nm Pr:YLF laser pumped by an InGaN blue laser diode. The laser achieved a maximum power of 641 mW with stable output and good beam quality. The experimental results were in agreement with theoretical simulations.
Article
Materials Science, Multidisciplinary
Bhishma Karki, Youssef Trabelsi, Amrindra Pal, Sofyan A. Taya, Ram Bharos Yadav
Summary: This study proposes an SF11 Prism- Ag- ZnO nanowires-CeO2-Sensing layer-based surface plasmon resonance sensor for measuring dopamine concentration in human blood. The sensor demonstrates high sensitivity and detection accuracy, and holds significant importance for early diagnosis of neurological diseases.
Article
Materials Science, Multidisciplinary
M. Taoufiq, A. Soussi, A. Elfanaoui, A. Ait Hssi, S. Baoubih, A. Ihlal, K. Bouabid
Summary: In this study, the effect of copper doping within ZnS on glass substrates was investigated through experimental and theoretical approaches. Pure ZnS and Cu-doped ZnS films with varying copper concentrations were deposited on glass substrates using the SILAR technique. The structural, morphological, and optical properties of the films were characterized, and the theoretical FP-LAPW method based on density functional theory was employed to study the properties of copper-doped ZnS.
