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
Chemistry, Inorganic & Nuclear
Malik Ashtar, Yuming Bai, Longmeng Xu, Zongtang Wan, Zijun Wei, Yong Liu, Mohsin Ali Marwat, Zhaoming Tian
Summary: Rare-earth-based frustrated magnets combine strong spin-orbit coupling, geometric frustration, and anisotropic exchange interaction to produce diverse exotic magnetic ground states such as quantum spin liquid. The synthesized melilite-type RE2Be2GeO7 compounds exhibit no magnetic ordering except for Tb2Be2GeO7, which undergoes antiferromagnetic transition with Neel temperature around 2.5 K. Among the compounds, Gd2Be2GeO7 shows the maximum magnetic entropy change up to 54.8 J K-1 kg-1 at 7 T, while Dy2Be2GeO7 has the largest value of 16.1 J K-1 kg-1 at 2 T, indicating potential magnetocaloric effects in liquid helium temperature regimes.
INORGANIC CHEMISTRY
(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, Inorganic & Nuclear
Nan Zhang, Xiao Huang, Wen-Dong Yao, Yao Chen, Zheng-Rui Pan, Bingxuan Li, Wenlong Liu, Sheng-Ping Guo
Summary: In this study, the first melilite-type rare-earth oxythiogermanates were successfully synthesized and found to exhibit moderate second-harmonic-generation (SHG) responses and large laser-induced damage thresholds. Theoretical calculations revealed the synergistic effect of mixed anionic groups and transition metal units on the SHG effect.
INORGANIC CHEMISTRY
(2023)
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
Xu Sang, Kang Zhang, Adnan Khan, Rui Xu, Yan Li, Jiaxin Yang, Ming Feng, Lisa Liu, Feng Song, Wei Huang
Summary: Electrically tunable polarized luminescence of aligned Eu(tta)(3)phen/E7 composites is achieved by the interaction between liquid crystal hosts and rare earth complex guests. The generation mechanism of the polarization effect is explored from three different aspects, including polarized energy absorption of incident light, site symmetry of Eu3+ ions, and polarized energy transfer from E7 to Eu(tta)(3)phen. The convenient control of well-aligned Eu(tta)(3)phen complex by embedding Eu(iii) complex guest in E7 host and utilizing electric field forces is confirmed.
Article
Chemistry, Applied
Pengyu Zhou, Qingli Zhang, Fang Peng, Baoquan Sun, Xiuming Dou, Bao Liu, Dandan Han, Yongzhou Xue, Kun Ding
Summary: The pressure and temperature-dependent luminescence properties of Nd3+ : GdTaO4 for the F-3(3/2) -> I-4(9/2) transition were investigated, with potential applications in optical sensing. The emission lines corresponding to the transition were found to be highly sensitive to pressure and exhibited a strong dependence on temperature. These findings suggest that Nd3+ : GdTaO4 is a promising candidate for pressure and temperature sensors in the near-infrared spectral range.
JOURNAL OF RARE EARTHS
(2022)
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)
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, Analytical
Xia-Xia Liu, Li-Ping Lu, Miao-Li Zhu
Summary: The new 2D light-emitting coordination polymer CP1 exhibits stability in a wide range of pH solutions and serves as a multifunctional luminescence sensing material. It shows potential for selective detection of La3+/Eu3+/Tb3+/Dy3+ ions with lower detection limits.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Roman Morozov, Dalibor Stankovic, Viacheslav Avdin, Dmitri Zherebtsov, Mikhail Romashov, Anastasia Selezneva, Daniil Uchaev, Anatoly Senin, Alexander Chernukha
Summary: In this paper, the impact of introducing rare-earth elements into the borate structure on the electrocatalytic performance of the material is investigated, and its application for non-enzymatic detection of vitamin B6 is demonstrated. The dysprosium borate shows the best electrocatalytic performance among all tested materials. The quantitative testing of B6 using a DyBO3-modified electrode exhibits a linear range and sensitivity, and the modified electrode shows good reusability. The results indicate that this approach provides a significant method for the design of electrocatalysts with tailored structures and offers new strategies for the development of materials for electrochemical (bio)sensing needs.
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
Engineering, Multidisciplinary
Changhao Wang, Kaili Gong, Bin Yu, Keqing Zhou
Summary: Rare earth elements have attracted intensive attention as efficient flame retardants for polymers, with various synthesis methods and different structural forms developed. They provide excellent fire safety to polymeric materials, but there are still challenges in understanding the flame retardant mechanism and preparing composite materials.
COMPOSITES PART B-ENGINEERING
(2023)
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)
Article
Materials Science, Multidisciplinary
T. Zhezhera, P. Gluchowski, M. Nowicki, M. Chrunik, A. Majchrowski, K. M. Kosyl, D. Kasprowicz
Summary: An efficient near-infrared quantum cutting process was achieved in Bi3TeBO9:Nd3+ phosphors through cooperative down-conversion of Bi3+ and Nd3+ ions. The near-infrared emission of Nd3+ ions was enhanced by Bi3+ ions in the microcrystalline powders doped with various concentrations of Nd3+ ions. The luminescent properties of the powders were studied, and the mechanisms of energy relaxation were discussed.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
M. Kowalczyk, M. Kaczkan, A. Majchrowski, M. Malinowski
Summary: The study compared the optical excitation and emission spectra of trivalent europium (Eu3+) ions in Bi2ZnOB2O6 in both crystal and glass phases, finding strong orange-red emissions in both phases. The results suggest that Eu3+:BZBO has the potential to be a promising emitter of orange-red luminescence in both crystal and glass phases.
Article
Chemistry, Physical
M. A. Carpenter, E. K. H. Salje, M. B. Costa, A. Majchrowski, K. Roleder
Summary: The study analyzed the order parameter coupling associated with the first order, improper ferroelastic transition in PbZrO3, showing that the coupling between two order parameters via common strains may contain contributions from higher order terms. The elastic and anelastic properties of the material change as the transition point is approached, exhibiting softening, discontinuous stiffening, and further stiffening in the stability field of the orthorhombic structure. Additionally, the absence of softening due to certain terms implies a slow relaxation time for changes in the order parameters in response to induced shear strain.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
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.
Review
Chemistry, Inorganic & Nuclear
Marta J. Woznlak Budych, Katarzyna Staszak, Anna Bajek, Filip Pniewski, Renata Jastrzab, Maciej Staszak, Bartosz Tylkowski, Karolina Wieszczycka
Summary: This paper summarizes the most interesting applications of polyoxometalates (POMs) in the past five years, highlighting the relationship between their complex nature, properties, and chemical structure. POMs are a well-known class of metal-oxygen nanoclusters with adjustable size and structure. Due to their diverse properties, they have received great attention in various fields of current socioeconomic interest, including materials science, catalysis, hydrogen production, environmental protection, and advanced medicine. The role of the characteristic structure of this class of compounds in the discussed applications has been emphasized.
COORDINATION CHEMISTRY REVIEWS
(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
Multidisciplinary Sciences
Malwina Gabryel-Skrodzka, Martyna Nowak, Jakub Grajewski, Renata Jastrzab
Summary: The complexation reactions of phosphocholine, pyrimidine nucleosides, and nucleotides with copper(II) ions were investigated. The stability constants of the species were determined using potentiometric methods and computer calculations. Spectroscopic methods were used to establish the coordination mode of the complexes formed in the pH range of 2.5-11.0. These studies provide insights into the role of copper(II) ions in living organisms and the interactions with the studied bioligands. The impact of phosphate groups on metal ion complexation and ligand interactions was also discussed.
SCIENTIFIC REPORTS
(2023)
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
Krystian Roleder, Andrzej Majchrowski, Iwona Lazar, Roger W. Whatmore, A. Mike Glazer, Dariusz Kajewski, Janusz Koperski, Andrzej Soszynski
Summary: The origin of the strong piezoelectric phenomenon in PZT perovskites is still not fully understood. Studies have shown that the enhancement of the piezoelectric properties in this material is related to a change in the distribution of domains with monoclinic symmetry, which are easily polarized and rotated under the action of an electric field.
Article
Materials Science, Multidisciplinary
Maria A. Kniazeva, Alexander E. Ganzha, Irena Jankowska-Sumara, Marek Pasciak, Andrzej Majchrowski, Alexey Filimonov, Andrey Rudskoy, Krystian Roleder, Roman G. Burkovsky
Summary: The Perovskite solid solutions PbHfO3-PbSnO3 were studied to understand the formation mechanisms of incommensurate phases. The study used x-ray diffuse scattering signal to quantify the evolution of susceptibilities related to different distortion modes. The experimental results showed a linear dependence of ferroelectric stiffness in the cubic phase and a shift in the susceptibility maximum to a nonzero wave vector in the intermediate phase.
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.
