Article
Physics, Condensed Matter
Prateek Gupta, Bhubesh C. Joshi
Summary: Pristine and Cu-doped ZnO thin films with different Cu concentrations were deposited using pulsed laser deposition method, and their structural, optical, and electronic properties were studied. The results showed that Cu doping reduced the optical band gap energy of ZnO films and caused some structural defects.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Engineering, Electrical & Electronic
B. Vigneshwaran, P. Kuppusami, S. Ajith Kumar
Summary: This study investigates the structural and microstructural information of Ba0.5Sr0.5TiO3 (BST-0.5) films deposited on various substrates using pulsed laser deposition (PLD) method. It was found that films deposited at 1023K with oxygen partial pressure of 13.33Pa exhibited increased crystallinity.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Physics, Applied
Yawei Zhou, Zhe Liu, Chunqing He, Chongshan Yin
Summary: FTO thin films were prepared by radio frequency magnetron sputtering, and defects and charge carrier transport behavior were evaluated as the films transitioned from amorphous to nanocrystalline structures. The study revealed that annealing temperature significantly impacted the stable lattice structure and carrier mobility of the FTO thin films, and a defect scattering mechanism was proposed to explain the observed increase in carrier mobility after thermal treatment.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Jakub Holovsky, Eva Horynova, Lukas Horak, Katarina Ridzonova, Zdenek Remes, Lucie Landova, Rupendra Kumar Sharma
Summary: Molybdenum oxide is a material with high bandgap, work function, and other interesting properties. Using Pulsed Laser Deposition, researchers were able to deposit high transparency MoO3 layers from stoichiometric MoO3 and metal Mo targets at different temperatures and oxygen pressures. Optical properties were accurately tracked using Photothermal Deflection Spectroscopy and Spectral Ellipsometry, while crystallinity and surface morphology were monitored using X-ray diffraction and Scanning Electron Microscopy. Increasing temperature led to smoother, denser layers, narrowing bandgap, and increased sub-gap absorption, with crystallization occurring above 400 degrees C. Sub-gap absorption around 1000 nm depended on temperature and weakly on oxygen pressure.
Article
Chemistry, Physical
T. Roch, M. Gregor, S. Volkov, M. Caplovicova, L. Satrapinskyy, A. Plecenik
Summary: This study examined the impact of different substrates on the structure and orientation of niobium nitride thin films, revealing that films on C-Al2O3 substrate exhibited the best superconducting properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Optics
P. A. Chate, S. D. Lakde, D. J. Sathe
Summary: Antimony sulphide thin films prepared by the dip method were heat treated up to 473 K, resulting in changes in structural properties, grain size, and optical absorption with increasing annealing temperature. The annealed films exhibited orthorhombic structures and increased crystallinity, grain size, and unit cell volume as the temperature rose. Optical absorption showed an increase in absorptivity, while the electrical conductance, thermoelectrical power, and carrier mobility also increased with heating temperature.
Article
Materials Science, Multidisciplinary
U. Chalapathi, Sambasivam Sangaraju, Salh Alhammadi, Krithikaa Mohanarangam, C. Parthasaradhi Reddy, Munirah D. Albaqami, Saikh Mohammad, Kiran Kumar Ganta, Si-Hyun Park
Summary: In this study, Bi,,Sb2-,,S3 thin films were synthesized on ITO-coated glass substrates by Bi-doping of Sb2S3 using CBD method. The structural, optical, and photoelectrochemical properties of the films were investigated. By increasing the Bi-dopant concentration, the films transformed into Bi0.76Sb1.24S3 and Bi2S3. The Bi0.76Sb1.24S3 film with x=1.0 showed stable photocurrent and good charge-carrier separation, making it suitable for PEC water-splitting applications.
RESULTS IN PHYSICS
(2023)
Article
Physics, Condensed Matter
A. Mandal, S. K. Adhi, B. P. Joshi, S. D. Shinde, A. G. Banpurkar, A. V. Limaye, K. P. Adhi, T. Sant, S. M. Jejurikar
Summary: Highly c-axis oriented, single-phase praseodymium doped ZnO thin films were deposited on cAl(2)O(3) substrate under different oxygen pressure conditions. Photoluminescence and X-ray photoelectron emission studies revealed the emission of Pr3+ ions and observed different transitions of Pr3+ ions.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Materials Science, Multidisciplinary
Md Abu Sayeed, Hasan Khaled Rouf
Summary: The impacts of Al doping and annealing temperature on the structural, optical, and electrical properties of Sn1-xO2:Al-x thin films were investigated. High temperature annealing improved crystallinity and reduced defects, while Al doping decreased carrier mobility and concentration.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Wangwang Li, Weibiao Xue
Summary: In this study, two sets of AlN thin films were synthesized on sapphire wafers with different surface orientations using atomic layer deposition. The morphological, structural, and optical properties of the films were characterized using various techniques including AFM, XRD, Raman scattering, XPS, and UV-vis. The results showed uniform coverage of the AlN films on the sapphire substrate without any pinholes or cracks. The films deposited on A-plane and M-plane substrates exhibited low defect concentration. XPS analysis revealed constant surface chemical state and element ratios for the AlN films on substrates with varied surface orientations. UV-vis measurements indicated that the AlN film on M-plane substrate had the highest transmittance.
Article
Chemistry, Physical
Md Abu Sayeed, Hasan Khaled Rouf
Summary: Zinc-doped CdTe thin films were fabricated and their structural, optical, and electrical properties were studied. Increasing doping concentration affected optical properties such as transmittance and absorption coefficient, as well as electrical properties like carrier concentration and mobility.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Anupama Chanda, Shalik Ram Joshi, V. R. Akshay, Shikha Varma, Jai Singh, M. Vasundhara, Prashant Shukla
Summary: The investigation focused on the effects of multilayers and cobalt (Co) doping on the structural and optical properties of TiO2 thin films. The findings showed that Co-doped TiO2 multilayered films exhibited enhanced values of refractive index, transmittance, and blue emission, making them promising for optical device applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Bruno Esteves, Sara Pimenta, Eliana M. F. Vieira, Joao R. Freitas, Jose A. Rodrigues, Jose H. Correia
Summary: A novel thin-film photodiode based on n-SnOx/p-SnO(x) and a-Si thin films was developed for high level light detection applications on non-semiconductor substrates, demonstrating high Seebeck coefficients and responsivity in the visible spectral region. The photodiode shows promising potential for flexible optical sensors.
Article
Materials Science, Multidisciplinary
P. A. Chate, D. J. Sathe, S. L. Hake
Summary: Nickel selenide thin films were synthesized on amorphous templates using a dip method. The films exhibited polycrystalline nature and high absorptivity with a direct type of transition.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Condensed Matter
A. Soussi, A. Ait Hssi, L. Boulkaddat, A. Asbayou, N. Labchir, A. Elfanaoui, R. Markazi, K. Bouabid, A. Ihlal, A. Taleb
Summary: In this study, Lanthanum-doped ZnO thin films with different concentrations of Lanthanum were prepared using the spin-coating method and their electronic, optical and structural properties were investigated using DFT and TB-mBJ. Experimental results showed that the films had a wide band gap of 3.17 eV and a hexagonal wurtzite structure. The transmittance in the visible region and the absorption coefficient increased with the concentration of La.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Engineering, Electrical & Electronic
Siva Chidambaram, Krithikadevi Ramachandran, Mounir Gaidi, Kais Daoudi, Mathan NatarajamoorthynAff
Summary: Iron tungstate nanoparticles were successfully prepared using a simple solution combustion technique, marking the first report on their synthesis. The nanoparticles exhibited excellent conductivity and optical properties, with a predicted optical band gap of 2.2 eV. These nanoparticles showed promise for applications in photoelectrochemical water splitting reactions, with potential for efficient water splitting processes.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Krithikadevi Ramachandran, Rania Ziad, Soumya Columbus, Kais Daoudi, Jannat Hammouche, My Ali El Khakani, Siva Chidambaram, Mounir Gaidi
Summary: In this study, vertically aligned silicon nanowires coated with titanium dioxide (SiNWs/TiO2) were successfully fabricated for the photocatalytic degradation of organic dyes. The TiO2 film exhibited pure anatase phase crystallization, with an average crystalline size of 50 nm, as confirmed by X-ray diffraction analysis. SEM, EDX, and Raman spectra analysis further supported the homogeneous distribution of TiO2 nanoparticles on the nanowires. The developed SiNWs/TiO2 showed a high photocatalytic efficiency of 96% at an optimum nanowire length of 3.5 µm, and demonstrated stability for up to 190 days, making it a promising candidate for water remediation applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Kais Daoudi, Mounir Gaidi, Soumya Columbus, Mohammed Shameer, Hussain Alawadhi
Summary: The exploration of novel strategies for fabricating SERS substrates holds enormous research potential, as achieving high sensitivity, reproducibility, and cost effectiveness is highly challenging. Hierarchical silver nanoprism/graphene oxide/silicon nanowire (Ag/GO/SiNWs) arrays have been fabricated as SERS sensors for effective detection of atrazine. These sensors demonstrate high efficiency, excellent reproducibility, and low cost advantages.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Environmental Sciences
Khaled Trabelsi, Mabrouk Abidi, Anouar Hajjaji, Rania Tefdini, Brahim Bessais, Sami Rtimi
Summary: This study investigates the effect of anodization time on the morphology, optical, and photocatalytic properties of TiO2 nanotubes. The results show that the length of the nanotubes increases with longer anodization time. The optimized nanotubes demonstrate efficient bacterial inactivation and degradation of organic pollutants under low-intensity solar-simulated light.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
M. Salem, J. Salem, H. Ghannam, I. Massoudi, F. Bourguiba, M. Gaidi
Summary: Undoped and Fe doped ZnO thin films were prepared by a simple and low-cost co-precipitation method and deposited on silicon substrates using the spin-coating technique. The influence of Fe-doping concentration on the structural and opto-electronic properties of the films was investigated. XRD and AFM techniques were used to analyze the crystalline structure and surface morphology of the deposited films, while FTIR and photoconductance-based methods were employed to study the surface passivation and reflectivity. The results showed that the effective minority carrier lifetime increased from 2 to 95 μs with a minority carrier density of 10^13 cm^(-3), and the reflectance decreased from 32% to approximately 6% after Fe-doped ZnO coating on silicon.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Optics
S. Sassi, K. Trabelsi, A. El Jery, M. Abidi, A. Hajjaji, L. Khezami, A. Karrech, M. Gaidi, B. M. Soucase, B. Bessais
Summary: This study investigates TiO2 nanotube arrays fabricated by anodization and their photocatalytic performance when decorated with CuxOy nanoparticles using SILAR. The results show that increasing the number of SILAR cycles leads to the formation of CuO and Cu2O nanoparticles on the TiO2 nanotubes, enhancing the photocatalytic efficiency.
Article
Chemistry, Physical
Jose Ferreira De Sousa Jr, Soumya Columbus, Jannat Hammouche, Krithikadevi Ramachandran, Kais Daoudi, Mounir Gaidi
Summary: In this study, silicon micro-pyramids functionalized with silver nanoparticles were successfully developed as low-cost SERS chemosensors for the fast detection of various hazardous organic pollutants. The optimized micro-pyramid structure with well-controlled morphology was obtained by subjecting silicon to alkali mediated chemical etching process. The sensor exhibited high sensitivity and stability, and was capable of detecting organic dyes at picomolar levels and para-nitrophenol at femtomolar levels.
APPLIED SURFACE SCIENCE
(2023)
Article
Spectroscopy
Kais Daoudi, Soumya Columbus, Bruno P. Falca, Rui N. Pereira, Suzana B. Peripolli, Krithikadevi Ramachandran, Hassen Hadj Kacem, Anis Allagui, Mounir Gaidi
Summary: In this study, AgNPrs/SiNPs hybrid arrays were fabricated for sensitive detection of biomolecules using SERS. SiNPs with different sizes and phosphorous doping concentrations were synthesized in nonthermal plasma. The hybrid arrays exhibited substantial amplification of the fingerprint bands of R6G and showed high stability and reproducibility. They also enabled DNA detection with a lower limit of detection, making them a reliable and cost-effective biosensing platform.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Moez Salem, Hajar Ghannam, Jamel Salem, Sana Ben Moussa, Imen Massoudi, Mounir Gaidi
Summary: Undoped and Cu-doped ZnO thin films were prepared using a simple co-precipitation method and applied on silicon substrates using spin-coating. The effect of Cu-doping concentration on the films' structural and opto-electronic properties was investigated. Crystal structure and surface morphology were examined using AFM and XRD techniques. The surface passivation and reflectivity of the films were studied using FTIR and photoconductance-based methods. With increased Cu-doping concentration, the minority carrier lifetime increased from 1.5 to 71 µs at a minority carrier density of 2.10(14) cm(-3). However, the reflectance decreased from 37% to around 7% for λ = 500 nm once Cu-doped ZnO was coated on silicon.
Article
Chemistry, Physical
Safa Jemai, Lotfi Khezami, Kaouther Gueddana, Khaled Trabelsi, Anouar Hajjaji, Mosbah Amlouk, Bernabe Mari Soucase, Brahim Bessais, Sami Rtimi
Summary: This study investigates the properties of ZrO2 nanotubes synthesized by electrochemical anodization, focusing on their structure, optics, and photocatalytic activity. The effects of annealing temperature on the structural and morphological characteristics of the nanotubes were analyzed using XRD, SEM, and TEM. The reflectivity and photoluminescence of the nanotubes were found to vary with annealing temperature. The photocatalytic degradation of Black Amido dye by the annealed nanotubes was also evaluated, with the best performance observed in samples annealed at 400 degrees C.
Article
Materials Science, Multidisciplinary
Mohamed P. Shameer, K. Vijai Anand, Soumya Columbus, Hussain Alawadhi, Kais Daoudi, Mounir Gaidi, K. Govindaraju
Summary: This study investigates the feasibility of thermally evaporated Ag nanoarrays as cost-effective and reusable substrates for multiplexed PABA sensing, and demonstrates their highly efficient, reproducible, and low detection limit characteristics in environmental remediation applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Spectroscopy
Rania Ziad, Soumya Columbus, Abdelaziz Elgamouz, Kais Daoudi, Abdel-Nasser Kawde, Krithikadevi Ramachandran, Mounir Gaidi
Summary: In this study, hierarchical TiO2/SNP hybrid arrays were fabricated via facile and low-cost casting techniques, and their performance in surface-enhanced Raman scattering and photocatalytic decomposition of hazardous organic pollutants was investigated. The results showed that the TiO2/SNP nanoarrays exhibited nearly 288 times enhancement in SERS activities compared to bare TiO2 substrates and 2.6 times enhancement compared to pristine SNP. The hybrid substrates also demonstrated improved photocatalytic activities, with 94% and 86% decomposition of rhodamine B and methylene blue, respectively, within 90 minutes of visible light exposure. The TiO2/SNP hybrid arrays were proven to be versatile platforms for sensing and degrading hazardous pollutants for environmental applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Moez Salem, Hajar Ghannam, Abdullah Almohammedi, Jamel Salem, Yousra Litaiem, Imen Massoudi, Malek Gassoumi, Mounir Gaidi
Summary: Synthesized pure and Ag-doped ZnO nanostructures using a simple co-precipitation method and applied them onto Si substrates. Studied the evolution of nanostructure and opto-electronic characteristics in doped layers with different Ag content. Examined crystal structure and surface morphology of deposited films using XRD and AFM techniques. Investigated surface passivation quality using FTIR and photoconductance-based techniques to understand electronic and optical losses. Lifetime values increased from 1.5 to 106 μs at a density of 5.10(14) cm(-3) according to photoconductance lifetime measurement, while reflectivity decreased from 36% to 6% after deposition of Ag:ZnO on silicon surface.
Article
Chemistry, Physical
Hussain Alawadhi, Moza Ali Alnaqbi, Krithikadevi Ramachandran, Soumya Columbus, Kais Daoudi, Siva Chidambaram, My Ali El Khakani, Mounir Gaidi
Summary: Flexible surface enhanced Raman spectroscopy (SERS) sensors were developed by pulsed laser deposition process (PLD) with plasmonic gold nanoparticles (AuNPs) on the polycarbonate (PC) polymer matrix. The SERS properties of the sensors were optimized and achieved a high enhancement factor of 1.1 x 10^8. The fabricated flexible SERS sensor effectively detected food toxins in a rapid time, with good signal reproducibility and surface uniformity.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
A. Aly, M. Ghali, A. Osman, M. K. El Nimr
Summary: This study reports the discovery of naturally occurring luminescent graphene quantum dots (GQDs) in coconut water for the first time. The GQDs were identified through various measurements and were found to have dual sizes and emit different wavelengths of light. The GQDs were also utilized as an efficient optical sensor for aniline liquid detection.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zehua Chen, Wencheng Ma, Qinglu Fan, Yanhua Liu, Min Sun, Shuo Wang
Summary: The nanoscale e-VOPO4 materials were successfully prepared by hydrothermal synthesis and calcination, showing high purity and suitable particle size. It exhibited satisfactory electrochemical performance as cathode material for sodium ion batteries, making it a potential candidate for high energy storage systems.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Tao Liu, Yahui Liu, Le Ling, Zhongxi Sheng, Zao Yi, Zigang Zhou, Yongjia Yang, Bin Tang, Qingdong Zeng, Tangyou Sun
Summary: In this paper, a terahertz (THz) micronano device that can switch between bimodal absorption and plasmon-induced transparency (PIT) is proposed. The device consists of layers of graphene, silica, and vanadium dioxide, and has a simple structure, easy tuning, and wide-angle absorption. The device achieves perfect absorption at specific frequencies and is highly sensitive to environmental refractive index. It also has the functions of a three-frequency asynchronous optical switch and slow light effect.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Xiaobo Luo, Songhan Hu, Qiudong Duan, Dacheng Zhou, Jialin Chen, Yugeng Wen, Jianbei Qiu
Summary: The exploration of solar light absorption by a material is important in photonics and optoelectronics. This study reveals the potential of Ba3-xGa2O6:xBi3+ as a promising candidate for various photonic and optoelectronic applications, and demonstrates the use of the material in double-sided laser printing for three-dimensional optical imaging.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Hemin Wang, Yanling Hao, Lele Xiang, Xiaosi Qi, Lei Wang, Junfei Ding, Yunpeng Qu, Jing Xu, Wei Zhong
Summary: This study designed Fe3O4-FeCO3/MWCNTs/RGO MCNCs composites and fabricated large-scale samples using hydrothermal and freeze-drying methods. The microstructural investigation showed that these materials had a mixed-dimensional structure, which improved impedance matching features, polarization, and conduction loss abilities, leading to significantly enhanced electromagnetic absorption properties.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zhenshan Yu, Hao Chen, Xuequan Chen, Yu-Sheng Lin
Summary: This study presents a silicon dielectric metamaterial (SDM) composed of two outer symmetric semi-circular rings and two inner symmetric split-ring resonators (SRRs). The electromagnetic responses of the SDM device in different modes were studied through numerical simulations and experiments. Increasing the structure height of the SDM device resulted in red-shifted resonances and stronger intensities. This study provides a new design strategy for the development of frequency filtering, polarization switching, and resonance modulation characteristics in THz-wave applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yiming Qi, Na Zhang, Meng Zong, Yangxianzi Liu, Weixing Chen
Summary: This study prepares dielectric/carbon fiber based nanocomposites wave-absorbing materials using liquid diffusion and high temperature carbonization strategies. By tuning the element type, drying mode, and filling amount, the electromagnetic parameters and absorbing properties can be adjusted. The best synthesized sample shows excellent absorbing performance, making it suitable for a wide range of electromagnetic wave absorption applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Carlos D. Gonzales-Lorenzo, T. K. Gundu Rao, Alberto A. Ccollque-Quispe, Jorge Ayala-Arenas, Monise B. Gomes, Betzabel N. Silva-Carrera, Roseli F. Gennari, Valeria S. Pachas, F. Monzon-Macedo, H. Loro, Jose F. D. Chubaci, Nilo F. Cano, Rene R. Rocca, Shigueo Watanabe
Summary: In this study, CaSiO3 doped with different ppm of Eu was synthesized using the devitrification method. Various physical properties were analyzed, revealing that the intensity and temperature of the high-temperature TL peak increased with higher dopant amounts. Fluorescence measurements indicated the presence of Eu2+ and Eu3+ ions in the samples. EPR spectra confirmed the existence of two defect centers.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yanning Qu, Xinyang Li, Mei Cui, Renliang Huang, Wanquan Ma, Yunting Wang, Rongxin Su, Wei Qi
Summary: In this study, a new molybdenum disulfide/N,S-doped carbon quantum dots (MoS2/N,S-CQDs) heterojunction with enhanced light absorption and electrons transfer di-functional properties was constructed via a facile one-pot hydrothermal method. The heterojunction showed remarkable efficiencies in degrading methylene blue (MB) and malachite green (MG) in an actual water system under simulated sunlight irradiation. The facile synthetic technique and effective multifunctional properties of the composite have the potential for further research and industrial applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jiayi Wang, Penggang Ren, Xueyan Zhao, Zhengyan Chen, Yanling Jin, Zengping Zhang
Summary: In this study, a novel homojunction photocatalyst was developed by combining defective g-C3N4 and flaked g-C3N4, which showed excellent degradation performance and cycling stability, and exhibited practicality in several simulation experiments.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jing Yan, Xiaoxiao Zhao, Weixing Chen, Panbo Liu
Summary: This research presents a self-templated strategy to prepare a spherical superstructure of carbon nanorods through material modification and pyrolysis. The resulting material exhibits a large controllable radius of curvature and shows excellent microwave absorbing properties due to its high specific surface area and mesoporous structure.
MATERIALS RESEARCH BULLETIN
(2024)
Review
Materials Science, Multidisciplinary
Qinglin Zeng, Zepeng Lv, Shaolong Li, Bin Yang, Jilin He, Jianxun Song
Summary: Liquid metal batteries possess stable safety performance, high rate performance, and thermal stability. The electrolyte, an important component of the battery, plays a significant role in achieving these remarkable performance characteristics. This paper reviews the important research progress of liquid metal batteries electrolyte and discusses the influence of different electrolyte types on energy efficiency. It also highlights the limitations and challenges of existing electrolytes and proposes key development directions for liquid metal electrolytes.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Song Wu, Junli Wang, Xuanbing Wang, Di Jiang, Jinlong Wei, Xiaoning Tong, Zhenwei Liu, Qingxiang Kong, Naixuan Zong, Ruidong Xu, Linjing Yang
Summary: In this study, a composite electrode composed of Ti/TiH2/beta-PbO2_Mn3O4@C was fabricated and investigated for zinc electrowinning. The composite electrode exhibited low overpotential, Tafel slope, icorr, and high voltage stability, outperforming most reported Ti-based PbO2 electrode materials. The excellent catalytic activity can be attributed to the low resistance and porous interlayer of TiH2 nanosheets, as well as the addition of Mn3O4@C micro-flakes to the active layer.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
E. Tsoutsoumanos, T. Karakasidis, N. Laskaris, P. G. Konstantinidis, G. S. Polymeris, G. Kitis
Summary: This study investigates the correlation between nanocrystal dimensions and thermoluminescence signal magnitude through simulations conducted in Python. Two mathematical models, OTOR and IMTS, were used to derive theoretical luminescence signals. The obtained results were compared with experimental data and a thorough comparative discussion was conducted.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Vishnu Aggarwal, Sudhanshu Gautam, Aditya Yadav, Rahul Kumar, Bipul Kumar Pradhan, Brajesh S. Yadav, Govind Gupta, Senthil Kumar Muthusamy, Sumeet Walia, Sunil Singh Kushvaha
Summary: Recently, there has been a great demand for highly responsive photodetectors that can detect a wide range of wavelengths. Researchers have successfully fabricated a broadband metal-semiconductor-metal photodetector by integrating sputtered Bi2Se3 with laser molecular beam epitaxy grown GaN film. This photodetector shows high responsivity in both the ultraviolet and near-infrared regions.
MATERIALS RESEARCH BULLETIN
(2024)
