Article
Chemistry, Physical
D. Kasprowicz, K. Jaroszewski, P. Gluchowski, E. Michalski, A. Majchrowski
Summary: Single crystals of Bi2ZnOB2O6 doped with Er3+ and Yb3+ ions were grown using the Kyropoulos method, exhibiting high values of nonlinear optical coefficients and efficient luminescence of Er3+ ions. The study investigated the structure, vibrational, and luminescent properties of the crystals for the first time, revealing the potential for use in integrated new-generation laser devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Xin Li, Jiangkun Cao, Mokang Huang, Mingying Peng
Summary: Bismuth (Bi) doped glasses and fibers have gained attention for their broad and long lived near infrared (NIR) emission. Codoping rare earth ions is a feasible way to modulate the NIR emission properties of Bi, but limited success have been achieved. By investigating nonactive rare earth (RE) codoped aluminoborate glasses, it is found that the addition of nonactive RE ions changes the glass structure and optical basicity, altering the optical properties of Bi.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Review
Chemistry, Multidisciplinary
Ping Chen, Wei Han, Mei Zhao, Jianwei Su, Zexin Li, Dongyan Li, Lejing Pi, Xing Zhou, Tianyou Zhai
Summary: 2D rare earth materials have shown fascinating luminescence, magnetism, and electric properties with potential applications in next-generation devices. This review focuses on crystal structures, synthesis methods, properties, and novel photodetector constructions using RE elements, highlighting the importance of exploring new compounds and broadening applications in this field.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Peipei Dang, Guodong Zhang, Wei Yang, Hongzhou Lian, Guogang Li, Jun Lin
Summary: Combining rare-earth ions with halide perovskites can produce interesting optical properties in the visible and NIR regions. In this study, RE3+ ions (RE: Nd, Ho, Er, Tm) were successfully introduced into Cs4Cd1-wMnwBi2Cl12 quadruple perovskites through a hydrothermal method. The materials exhibited characteristic emission of RE3+ in the red and NIR regions via constructing a Mn2+ energy bridge. The energy transfer processes and mechanism were confirmed, and an evolution process from direct to indirect band gaps was verified.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Applied
Binbin Jiang, Lihe Zheng, Dapeng Jiang, Handi Yin, Jiangang Zheng, Qiuhong Yang, Guofeng Cheng, Liangbi Su
Summary: Ytterbium and rare earth ions codoped CaF2-SrF2 single crystals were fabricated and their optical properties were analyzed, showing potential applications in high-power solid-state lasers. The study confirmed the effects of different rare earth ions on the crystal structure and optical performance.
JOURNAL OF RARE EARTHS
(2021)
Article
Chemistry, Physical
Tijana Stamenkovic, Dejan Pjevic, Jugoslav Krstic, Maja Popovic, Vladimir Rajic, Vesna Lojpur
Summary: A series of SrGd2O4 samples doped with different concentrations of Sm3+ and Dy3+ were prepared through glycine-assisted combustion synthesis. X-ray Powder Diffraction investigation confirmed the presence of pure orthorhombic lattice SrGd2O4. Energy Dispersive X-ray Spectroscopy showed that the desired elements were incorporated in the structure. Field Emission Scanning Electron Microscopy revealed the morphology of the samples as porous aggregated particles consisting of approximately 50 nm-sized spherical particles. Mercury Intrusion Porosimetry demonstrated the presence of a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy confirmed the successful incorporation of Dy3+ and Sm3+ ions. Down-conversion luminescence spectra showed typical emission transitions for Sm3+ and Dy3+ ions. The energy band gap of the doped samples was calculated to be 4.3 eV using UV-VIS Diffuse Reflectance Spectroscopy. UV-VIS Absorption Spectroscopy observed the photocatalytic degradation process, with approximately 50% of Rhodamine B being mineralized after 4 hours of simulated Sun exposure.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhichao Zeng, Mingzi Sun, Shuai Zhang, Hongtu Zhang, Xiaomeng Shi, Shi Ye, Bolong Huang, Yaping Du, Chun-Hua Yan
Summary: Most luminescent materials can only emit light with a particular wavelength. Integrating luminescence at different wavebands in a single component matrix to obtain white emission is the optimal strategy for designing lighting materials. This study synthesized a Sc-based double perovskite with adjustable luminescent properties, providing a new concept and strategy for the design and preparation of rare-earth optical perovskites in the future.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Analytical
Teboho P. Mokoena, Hendrik C. Swart, Kenneth T. Hillie, David E. Motaung
Summary: The research demonstrates that 3 wt% Eu3+ doped NiO exhibits a good response and sensitivity towards toluene at 100 degrees Celsius with 1 V bias voltage, along with a low detection limit. By precisely designing the relative amount of Eu3+ in NiO, the gas sensitivity and selectivity of the sensor can be further optimized.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Andrei Novitskii, Illia Serhiienko, Sergey Novikov, Yerzhan Ashim, Mark Zheleznyi, Kirill Kuskov, Daria Pankratova, Petr Konstantinov, Andrei Voronin, Oleg A. Tretiakov, Talgat Inerbaev, Alexander Burkov, Vladimir Khovaylo
Summary: In this study, the addition of rare-earth elements into the Bi-O charge reservoir layer of BiCuSeO results in an increase in charge carrier concentration and effective mass. The electronic transport properties are significantly improved in a wide temperature range. The substitution also leads to a noticeable decrease in lattice thermal conductivity. The maximum zT value obtained for the Bi0.92La0.08CuSeO sample is nearly 30% higher than that of pristine BiCuSeO.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Ping Li, Liuyong Zhao, Song Wang, Xiaohui Zhang, Huaiyuan Jiang, Ruizhen Liu, Nengchuang Zhao, Jian Cheng, Caili Xu, He Zhao, Renliang Lyu
Summary: This study successfully synthesized rare-earth ions doped upconversion luminescent microparticles using the impinging stream method, optimizing the conditions to achieve high yield and good monodispersity of the particles.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Qiang Chen, Keren Tang, Dengwang Luo, Luodan Han, ChunXiao Yu, Yiping Shen, Qi Lin, Yiting Chen, Chunyan Li, Jinghua Chen, Jianming Lan
Summary: A portable paper-based sensor was developed for the accurate detection of total heavy rare-earth ions using luminescence resonance energy transfer (LRET) mechanism and a special single strand DNA as the recognition element. The sensor showed good sensitivity and a low limit of detection.
FRONTIERS IN CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Jiuzhi Cui, Xin-Yuan Sun, Yufeng Wen, Runchuan Chen, Meidong Yu, Wenhao Du, Zhuohao Xiao
Summary: This study systematically investigated the effect of different metal oxides substitution on the optical properties of barium borosilicate glass. The results showed that the cyan light emission can be easily tuned by altering the concentration of the catalyst.
Article
Chemistry, Physical
Tatyana B. Bekker, Alexey A. Ryadun, Alexey V. Davydov, Vladimir P. Solntsev, Veronika D. Grigorieva
Summary: Single crystals of undoped and rare-earth-doped Ba-12(BO3)(6)[BO3][LiF4] were grown from high-temperature solutions. The luminescence of these crystals at specific excitation wavelengths shows potential for converting LED emissions into white light.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Wan Ying Xie, Peng Zhang, Hui Ying Zhang, Sulaiman Wadi Harun, Zian Cheak Tiu
Summary: The Er3+, Tm3+, Ho3+ activated, and Tm3+, Ho3+ co-doped NaBiF4:Yb3+ microcrystals were successfully synthesized using the hydrothermal method and the optimum synthesis condition was determined. The properties of the microcrystals, including phase purity, crystal structure, morphology, upconversion luminescence (UCL) performance, and thermal stability, were investigated. By doping different rare earth ions and varying the doping concentration, the UCL color can be adjusted and high color purity is achieved under 980 nm irradiation. The synthesized NaBiF4:20%Yb3+, 0.5%Tm3+, 1.5%Ho3+ microcrystals exhibit upconversion white emission, and LED devices fabricated by integrating these microcrystals with near-infrared LED chips emit bright white and other colors of light. These results indicate that rare earth ion-doped NaBiF4 microcrystals are promising functional materials for lighting and display devices.
JOURNAL OF LUMINESCENCE
(2023)
Review
Chemistry, Inorganic & Nuclear
Daniele Paderni, Luca Giorgi, Vieri Fusi, Mauro Formica, Gianluca Ambrosi, Mauro Micheloni
Summary: Rare earth elements (REEs) are a group of elements playing critical roles in modern applications, with scientists showing strong interests in their new applications. However, the development of chemical sensors suitable for selective sensing of REE ions remains a challenging task due to their complicated coordination properties.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Fang Su, Yunlin Yang, Yiyi Ou, Weijie Zhou, Fengkai Ma, Jianhui Zhang, Mikhail G. Brik, Hongbin Liang
Summary: Eu2+-, Mn2+-, and Eu2+-Mn2+-doped CaMgSi2O6 phosphors were prepared, and luminescent properties of Mn2+ were investigated. The study revealed that Mn2+ ions occupy two distinct sites in CaMgSi2O6 and discussed the energy transfer between Eu2+ and Mn2+. The different thermal quenching behaviors of Eu2+ and Mn2+ as well as the distinct emission colors enable potential applications in luminescence thermometry and anti-counterfeiting.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Materials Science, Ceramics
Sheng Wu, Quan Liu, Mikhail G. Brik, Puxian Xiong, Dong Wang, Guoxing Zhang, Yan Chen
Summary: In this study, an environmentally friendly phosphor emitting both blue-cyan and deep-red lights was successfully synthesized by co-doping Bi3+ and Mn4+ ions. The emission properties could be tuned by adjusting the concentration of Mn4+ ions and Li+ co-doping. The prepared phosphor showed potential applications in plant light-emitting diode lighting.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Crystallography
Yin-Pai Lin, Dmitry Bocharov, Eugene A. Kotomin, Mikhail G. Brik, Sergei Piskunov
Summary: Real-time time-dependent density-functional theory calculations were used to analyze the optical property and charge transitions of a single noble metal atom deposited on rutile TiO2(110) surface. Absorption spectra were calculated for all model structures, and transition contribution maps were computed to provide deeper insight into photo-absorption processes. The results revealed the accumulation of photogenerated electrons around the deposited gold atoms in TiO2, which is important for the design strategy of future photocatalytic materials.
Article
Multidisciplinary Sciences
D. Kajewski, S. H. Oh, J-H Ko, A. Majchrowski, A. Bussmann-Holder, R. Sitko, K. Roleder
Summary: In this study, Brillouin light scattering experiments and Raman light scattering experiments were conducted on niobium-doped lead zirconate single crystals to observe the elastic mode softening near phase transition temperatures and the interaction between acoustic and optic modes. The results indicate that the phase transition is mainly of the order-disorder type.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
M. Ya Rudysh, N. Y. Ftomyn, P. A. Shchepanskyi, G. L. Myronchuk, A. Popov, N. Lemee, V. Y. Stadnyk, M. G. Brik, M. Piasecki
Summary: A comprehensive theoretical study has been conducted on the structure, electronic, optical, and elastic properties of the ternary semiconductor silver thiogallate crystal AgGaS2. The study establishes a structure-properties relationship and efficiently resolves discrepancies between experimental and calculated data. Additionally, the study calculates the linear electro-optic properties, electrogyration coefficients, and second-order nonlinear optical coefficients of AgGaS2 crystals.
ADVANCED THEORY AND SIMULATIONS
(2022)
Article
Materials Science, Multidisciplinary
N. Mironova Ulmane, M. G. Brik, J. Grube, G. Krieke, M. Kemere, A. Antuzevics, E. Gabrusenoks, V. Skvortsova, E. Elsts, A. Sarakovskis, M. Piasecki, A. I. Popov
Summary: The optical spectra of a single crystal of alpha-Al2O3Cr3+ were studied, and it was found to have potential for optical thermometric applications. Three methods of measuring temperature were tested and analyzed, with the highest sensitivities achieved at cryogenic temperatures. The luminescence intensity ratio, change in half maxima width, and thermal shifts of specific lines were examined as temperature indicators.
Article
Energy & Fuels
Jurij Grechenkov, Aleksejs Gopejenko, Dmitry Bocharov, Inta Isakovica, Anatoli I. Popov, Mikhail G. Brik, Sergei Piskunov
Summary: In this study, we investigated the less studied solid solutions of CuGaS2, AgGaS2, and CuGaSe2 chalcopyrites using ab initio methods. Our theoretical simulations indicate that excess of In and Se in the solid solutions leads to band gap narrowing and broadening of the absorption spectra. These findings suggest potential photovoltaic applications for these compounds and demonstrate the usefulness of our developed methodology for further study of other promising chalcopyritic compounds.
Article
Optics
T. Zhezhera, P. Gluchowski, M. Nowicki, M. Chrunik, A. Majchrowski, D. Kasprowicz
Summary: Enhanced near-infrared emission at 1531 nm of Er3+ ions excited by Bi3+ and/or Yb3+ ions was observed in Bi3TeBO9:Yb3+/Er3+ phosphors. The synthesis of microcrystalline powders of Bi3TeBO9:Er3+, Bi3TeBO9:Yb3+, and Bi3TeBO9:Yb3+/Er3+ by means of the modified Pechini method was confirmed by XRD measurements. The low phonon energy of the Bi3TeBO9 matrix was revealed by mu-Raman investigations. Energy transfer from Bi3+ ions or Yb3+ ions to Er3+ ions resulted in the enhanced emission at 1531 nm in the Bi3TeBO9:Yb3+/Er3+ system. The potential use of Bi3TeBO9:Yb3+/Er3+ powders as spectral converters in photovoltaic devices was indicated by the results.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Marcin Kowalczyk, Marcin Kaczkan, Andrzej Majchrowski, Michal Malinowski
Summary: The spectroscopic properties of Eu3+-doped Bi12SiO20 (BSO) were studied and compared with Eu3+-doped Bi12GeO20 (BGO). Luminescence was observed due to the excitation of Eu3+ at the D-5(0) and D-5(1) levels. The Judd-Ofelt theory was used to calculate radiative lifetimes, omega parameters, and other transition probabilities. The strongest luminescence observed was attributed to the D-5(0) -> F-7(0) transition at 578 nm, similar to BGO sillenite.
Article
Chemistry, Physical
Adrianna Grabowska, Jerzy Kowalczyk, Robert Tomala, Maciej Ptak, Malgorzata Malecka, Anna Wedzynska, Mariusz Stefanski, Wieslaw Strek, Pawel Gluchowski
Summary: Graphene nanoplatelets (GNPs) were prepared through electrolytic exfoliation of graphite foil in an ammonium sulfate solution. A series of experiments were conducted to optimize the production of the flakes by varying solution pH, applied voltage and current, electrolysis duration, electrolytic system temperature, and ultrasound interaction type and duration. The quality of the produced graphene nanoplatelets was analyzed using X-ray diffraction, Raman and IR spectroscopy, and TEM.
Article
Chemistry, Inorganic & Nuclear
Pawel Gluchowski, Ruslan Nikonkov, Daniela Kujawa, Wieslaw Strek, Tomas Murauskas, Andrius Pakalniskis, Aivaras Kareiva, Andrii Yaremkevych, Olena Fesenko, Aliaksandr Zhaludkevich, Dmitry Karpinsky
Summary: Nanocrystalline La(0.9)A(0.1)Mn(0.9)Cr(0.1)O(3) (A: Li, K, Na) powders were synthesized by combustion method and used to prepare ceramics through high-pressure low-temperature sintering technique. The structure, elemental composition, and morphology were studied using XRD, Raman spectroscopy, EDS, and SEM. The magnetic properties were investigated using magnetometry methods and the cations' valency changes were analyzed using XPS after alkali ions doping. The sintering pressure and dopant type were found to significantly influence the structural and magnetic properties of the manganites.
Article
Biochemistry & Molecular Biology
Qing Gao, Katarzyna Grzyb, Luke F. Gamon, Peter R. Ogilby, Tomasz Pedzinski, Michael J. Davies
Summary: Disulfide bonds are critical for protein structure and function, and their modification can lead to loss of structure and function. This study investigates the oxidation of disulfide bonds by singlet oxygen, showing selective oxidation and variation in reaction rates and product formation. These findings suggest that certain disulfides, including those in proteins, may undergo detrimental modifications that affect protein structure and function.
FREE RADICAL BIOLOGY AND MEDICINE
(2023)
Article
Biochemistry & Molecular Biology
Natalia Bartczak, Jerzy Kowalczyk, Robert Tomala, Mariusz Stefanski, Damian Szymanski, Maciej Ptak, Wieslaw Strek, Konrad Szustakiewicz, Tomasz Kurzynowski, Lukasz Szczepanski, Adam Junka, Damian Gorczyca, Pawel Gluchowski
Summary: Graphene flakes were obtained via an electrolytic method and characterized using multiple techniques. Graphene-based composites with different concentrations were prepared with various matrices. The mechanical and antimicrobial properties of the coatings were significantly enhanced by the addition of graphene flakes.
Article
Materials Science, Multidisciplinary
K. Roleder, G. Catalan, A. M. Glazer, J. S. Baker, J. -H. Ko, F. H. Naqvi, S. B. Junaid, A. Majchrowski, Z. Trybula, J. Zareba, I. Lazar, D. Kajewski, J. Koperski, A. Soszynski
Summary: We have discovered a low-temperature polar phase in PbZrO3 below 270 K. The temperature dependence of polarization was determined by measuring pyroelectric current changes after poling the single crystal or ceramic in a DC electric field. This phenomenon was observed in both single crystals and ceramics, which may be related to the presence of polar (ferrielectric) antiphase boundaries within the antiferroelectric phase. The transition point was confirmed by changes in domain structure and anomalies in dielectric permittivity and losses in naturally grown single crystals and ceramic samples.
Article
Chemistry, Physical
Iwona Lazar, Roger William Whatmore, Andrzej Majchrowski, Anthony Mike Glazer, Dariusz Kajewski, Janusz Koperski, Andrzej Soszynski, Julita Piecha, Barbara Loska, Krystian Roleder
Summary: Intensive investigations have revealed the strong correlation between the piezoelectric properties of PbZr1-xTixO3 (PZT) materials and their ABO(3) perovskite structure, especially at the Morphotropic Phase Boundary (MPB). Undoped PZT single crystals with low Ti content exhibit similar piezoelectric properties to doped PZT ceramics, with a tricritical point observed near x ~ 0.06. These findings provide important insights into the performance of PZT materials.
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.
