Article
Chemistry, Multidisciplinary
Ji-Wook Kim, Dan Heo, Jie Wang, Hyung-Sub Kim, Satoshi Ota, Yasushi Takemura, Chulhaeng Huh, Seongtae Bae
Summary: In magnetic nanofluid hyperthermia, the use of pseudo-single domain-SPNP can significantly enhance the intrinsic loss power, making it a promising agent for clinically safe treatment.
Article
Chemistry, Multidisciplinary
Vanessa Pilati, Guilherme Gomide, Rafael Cabreira Gomes, Gerardo F. Goya, Jerome Depeyrot
Summary: This study focuses on the production of bimagnetic core@shell NPs and the use of the electric double layer (EDL) as a strategy to maintain colloidal stability in aqueous ferrofluids. By adjusting the ion/counterion ratio and controlling the water content, ultrastable concentrated ferrofluids were achieved. The influence of colloidal stability on the heating response of ferrofluids was investigated by studying different levels of nanoparticle clustering achieved through changing ionic force and medium pH.
Article
Engineering, Electrical & Electronic
Makiyyu Abdullahi Musa, Da Xu, Feng Sun, Hong Shao, Xiangting Dong, Raba'ah Syahidah Azis, Adamu Yunusa Ugya, Hadiza Abdullahi Ari
Summary: The study found that the crystallite sizes, magnetization, and photocatalytic activity of zinc ferrite and aluminum-doped zinc ferrite nanofibers changed under calcination at different temperatures. Aluminum doping reduced the crystallite sizes, increased the magnetization, and improved the photocatalytic activity of the samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Oleksandr Stroyuk, Oleksandra Raievska, Dmytro Solonenko, Christian Kupfer, Andres Osvet, Miroslaw Batentschuk, Christoph J. Brabec, Dietrich R. T. Zahn
Summary: The study observed that spontaneous alloying of non-stoichiometric aqueous Ag-In-S (AIS) and Cu-In-S (CIS) quantum dots (QDs) stabilized by surface glutathione (GSH) complexes led to the phenomenon of band bowing characteristic for solid-solution Cu(Ag)-In-S (CAIS) QDs. The alloying process, even occurring at room temperature, can be accelerated by thermal treatment and is assumed to be driven by an equilibrium between QDs and metal-GSH complexes. This alloying effect is expected to be general for different In-based ternary chalcogenides.
Review
Chemistry, Multidisciplinary
Ana C. Estrada, Ana L. Daniel-da-Silva, Catia Leal, Catia Monteiro, Claudia B. Lopes, Helena I. S. Nogueira, Isabel Lopes, Maria J. Martins, Natercia C. T. Martins, Nuno P. F. Goncalves, Sara Fateixa, Tito Trindade
Summary: This article reviews literature on the development of nanomaterials for water purification technologies and presents collaborative scientific research carried out in the laboratory. The research focuses on the synthesis and surface chemical modification of nanomaterials, as well as the evaluation of their properties for applications in water treatment. The article discusses three thematic lines of research: magnetic nanosorbents, nanocomposites for photocatalysis, and nanostructured substrates for contaminant detection. The research is motivated by the belief that nanomaterials have the potential to contribute to environmental solutions without causing further harm.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Aleksey A. Nikitin, Anastasiia V. Prishchepa, Ruslan A. Rytov, Vladimir P. Chekhonin, Maxim A. Abakumov
Summary: The study investigates the remote magneto-mechanical actuation of biomolecules under the influence of external magnetic fields using magnetic nanoparticles. The results demonstrate a nonmonotonic dependence of mechanical destruction on the size of nanoparticles, indicating the crucial role of magneto-dipole interactions between nanoparticles. This finding contributes to the fine-tuning of magnetic nanoparticle properties for specific magneto-mechanical tasks.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
Serena Fiocchi, Emma Chiaramello, Alessandra Marrella, Giulia Suarato, Marta Bonato, Marta Parazzini, Paolo Ravazzani
Summary: The recent development of core-shell nanoparticles combining magnetostrictive and piezoelectric phases has attracted attention. This study analyzes their magnetoelectric behavior using a numerical approach and proposes a nonlinear model to describe the response of different core-shell nanoparticles to magnetic field stimuli. Results show that the composition and size of the nanoparticles affect their electric output, suggesting the possibility of tuning their responses for specific applications.
Article
Environmental Sciences
Maelle Fresne, Phil Jordan, Owen Fenton, Per-Erik Mellander, Karen Daly
Summary: The study found that medium-sized P-coll in soils was mostly unreactive P associated to some extent with amorphous forms of iron. Higher soil maximum P sorption capacity was correlated with lower concentrations of medium-sized P-coll, while soluble P concentrations increased with increasing DPS.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Hassanien Gomaa, Eman M. Abd El-Monaem, Abdelazeem S. Eltaweil, Ahmed M. Omer
Summary: This study fabricated a montmorillonite/magnetic -NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as a green adsorbent for the removal of cationic methylene blue and crystal violet dyes from wastewater. The MMT-mAmCs composite exhibited high negative charges over a wide pH range, making it ideal for adsorbing cationic contaminants. The optimum pH for adsorption was found to be 7, and the composite displayed ferromagnetic behavior for easy separation. The maximum adsorption capacities of methylene blue and crystal violet were 137 and 118 mg/g, respectively, and the composite showed excellent reusability with over 87% removal efficiency after ten cycles.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Ceramics
Manel Othman, Ikbel Mallek-Zouari, Hanene Akrout, Najeh Thabet Mliki
Summary: This study investigates the effect of cobalt doping on bismuth ferrite and finds that increasing the cobalt concentration during synthesis can significantly decrease the particle size and increase the band gap of the material. The application of the samples in the photodecomposition of methylene blue under direct sunlight irradiation demonstrates unusual results due to the unique sizes of the samples and the phenomena that can occur at that size scale.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Pradeep Chavan
Summary: The article explores the humidity-sensing properties of Li-substituted cobalt ferrite nanoparticles, indicating that the substitution of Li ions enhances the formation of smaller grains and increases the surface area, thereby improving the humidity sensitivity of the ferrite nanoparticles.
Review
Chemistry, Physical
Stefanos Mourdikoudis, Melita Menelaou, Nadesh Fiuza-Maneiro, Guangchao Zheng, Shuangying Wei, Jorge Perez-Juste, Lakshminarayana Polavarapu, Zdenek Sofer
Summary: In recent decades, various colloidal chemical approaches have been developed to synthesize nanostructured materials in controlled manner. This review focuses on the role of oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles, discussing how the binding strengths and modes of these ligands affect the size and shape of the nanoparticles.
NANOSCALE HORIZONS
(2022)
Article
Materials Science, Ceramics
I. Anila, B. B. Lahiri, Subin P. John, M. Jacob Mathew, John Philip
Summary: This study investigates the AC induction heating properties of colloidal nano-aggregates of ferrimagnetic cobalt ferrite magnetic nanoparticles (MNPs). CoFe2O4 MNPs coated with bio-compatible chitosan polymer were synthesized using co-precipitation. The presence of chitosan coating was confirmed by various spectroscopy studies. The MNPs exhibited ferrimagnetic behavior at room temperature, and the CP-CHN sample showed significantly high AC induction heating efficiency. The cobalt ferrite nano-aggregates have potential applications in magnetic hyperthermia due to their high heating efficiency and bio-compatibility.
CERAMICS INTERNATIONAL
(2023)
Review
Nanoscience & Nanotechnology
Hiroshi Sugimoto, Minoru Fujii
Summary: This review discusses the synthesis methods and applications of colloidal silicon nanoparticles in nanophotonics, focusing on their optical responses and capability as nanoantennas for controlling light-matter interactions. Additionally, it presents the collective optical responses of silicon NPs in solution and discusses their potential applications.
Review
Chemistry, Multidisciplinary
Zachary M. Sherman, Allison M. Green, Michael P. Howard, Eric Anslyn, Thomas M. Truskett, Delia J. Milliron
Summary: The assembly of tunable nanocrystal gels using reversible chemical bonding and polymer-induced depletion attractions shows promise for creating functional materials with controllable properties, although challenges exist in translating principles to the nanoscale. The control of structure and properties at both microscopic and macroscopic levels is key in guiding the reversible assembly of nanocrystal gels. Insights from statistical thermodynamic theory and computer simulation have helped in predicting conditions for gelation and optimizing experimental parameters for targeted functionalities.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Optics
Muhammad Aamir, Arshad Farooq Butt, Malik Dilshad Khan, Muhammad Sher, Azhar Iqbal, Mohammad Azad Malik, Uzma Jabeen, Javeed Akhtar
Article
Energy & Fuels
Irum Shaheen, Khuram Shahzad Ahmad, Camila Zequine, Ram K. Gupta, Andrew G. Thomas, Mohammad Azad Malik
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2020)
Article
Materials Science, Multidisciplinary
Humaira Rashid Khan, Muhammad Aamir, Bilal Akram, Asif Ali Tahir, Mohammad Azad Malik, Muhammad Aziz Choudhary, Javeed Akhtar
MATERIALS RESEARCH BULLETIN
(2020)
Article
Chemistry, Applied
Irum Shaheen, Khuram Shahzad Ahmad, Andrew Guy Thomas, Claudia L. Compean-Gonzalez, Rosemary Jones, Mohammad Azad Malik
APPLIED ORGANOMETALLIC CHEMISTRY
(2020)
Article
Environmental Sciences
M. Mizanur Rahman, Kamrun Nahar, Md Meraj Ali, Nasrin Sultana, Mohammad Minnatul Karim, Utpal Kumar Adhikari, Mamoona Rauf, Md Abul Kalam Aza
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Irum Shaheen, Khuram Shahzad Ahmad, Camila Zequine, Ram K. Gupta, Andrew G. Thomas, Mohammad Azad Malik
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Engineering, Electrical & Electronic
Rehana Akram, Malik Dilshad Khan, Camila Zequine, Chen Zhao, Ram K. Gupta, Masood Akhtar, Javeed Akhtar, Mohammad Azad Malik, Neerish Revaprasadu, Moazzam H. Bhatti
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2020)
Article
Multidisciplinary Sciences
Humaira Rashid Khan, Bilal Akram, Muhammad Aamir, Muhammad Azad Malik, Asif Ali Tahir, Muhammad Aziz Choudhary, Javeed Akhtar
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Multidisciplinary
Sadia Iram, Azhar Mahmood, Effat Sitara, Syeda Aqsa Batool Bukhari, Syeda Arooj Fatima, Rubina Shaheen, Mohammad Azad Malik
Article
Energy & Fuels
Irum Shaheen, Khuram Shahzad Ahmad, Camila Zequine, Ram K. Gupta, Andrew G. Thomas, Mohammad Azad Malik
JOURNAL OF ENERGY STORAGE
(2020)
Article
Soil Science
Kamrun Nahar, Md Meraj Ali, Azmerry Khanom, Md Khasrul Alam, Md Abul Kalam Azad, M. Mizanur Rahman
APPLIED SOIL ECOLOGY
(2020)
Article
Soil Science
Azmerry Khanom, Md. Abul Kalam Azad, Md. Meraj Ali, Md. Yousof Ali, Sudhangshu Kumar Biswas, M. Mizanur Rahman
Summary: The study revealed that the nitrification activity of chemical fertilizers in vegetable soils is influenced by plants, nitrifying archaea/bacteria, and comammox amoA bacteria. The abundance of these bacteria in vegetable soils is significantly higher compared to control soils and positively correlated with nitrification rates.
APPLIED SOIL ECOLOGY
(2021)
Article
Chemistry, Analytical
Taghazal Zahra, Khuram Shahzad Ahmad, Camila Zequine, Ram Gupta, Andrew Guy Thomas, Mohammad Azad Malik
MICROCHEMICAL JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Taghazal Zahra, Khuram Shahzad Ahmad, Andrew Guy Thomas, Camila Zequine, Ram K. Gupta, Mohammad Azad Malik, Manzar Sohail
Article
Chemistry, Multidisciplinary
Irum Shaheen, Khuram Shahzad Ahmad, Camila Zequine, Ram K. Gupta, Andrew Thomas, Mohammad Azad Malik
Article
Engineering, Electrical & Electronic
Nishi Mehak, Bindu Rani, Aadil Fayaz Wani, Shakeel Ahmad Khandy, Ajay Singh Verma, Atif Mossad Ali, M. A. Sayed, Shobhna Dhiman, Kulwinder Kaur
Summary: In this study, the electronic, structural, and thermoelectric properties of newly designed layered rare-earth metal germanide halides were investigated. The materials showed promising thermoelectric performance, making them suitable candidates for energy harvesting in thermoelectric applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Devidas I. Halge, Vijaykiran N. Narwade, Nabeel M. S. Kaawash, Pooja M. Khanzode, Sohel J. Shaikh, Jagdish W. Dadge, Prashant S. Alegaonkar, Rajeshkumar S. Hyam, Kashinath A. Bogle
Summary: This study presents the design and fabrication of a high-performance blue light photodetector using an n-type cadmium sulfide (CdS) thin film and a p-type polyaniline (PANI). The photodetector demonstrates exceptional performance characteristics, including high responsivity, detectivity, and sensitivity, along with rapid response time and rectification behavior. The research represents a significant advancement in the field of high-performance photodetectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Da Hu, Jiabin Lu, Qiusheng Yan, Yingrong Luo, Ziyuan Luo
Summary: This study introduces a chemical mechanical polishing technique based on metal electrochemical corrosion for single-crystal SiC to address the environmental pollution caused by the polishing solution in chemical mechanical polishing. Wear experiments were conducted to investigate the wear properties of SiC C-surface under different grinding ball materials and solutions. The proposed mechanism of material removal in single-crystal SiC via metal electrochemical corrosion was discussed.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Lifang Mei, Long Lin, Dongbing Yan, Yu Liang, Yu Wu, Shuixuan Chen
Summary: This paper investigates the removal of CuO particles from silicon wafer surfaces using a picosecond laser. Numerical calculations and experimental research were conducted, and a thermal-stress coupled finite element model was established. The results show that as the laser energy density increases, the removal rate of CuO particles initially increases and then decreases, while the roughness of the silicon substrate decreases and then increases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Michihiro Yamada, Shuhei Kusumoto, Atsuya Yamada, Kentarou Sawano, Kohei Hamaya
Summary: In this study, we demonstrated the low-temperature growth of a Ge layer on a Co-based Heusler alloy via Sn doping, which improved the magnetic properties and spin signal.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Xiang-Long Wei, Bao-Feng Shan, Zong-Yan Zhao
Summary: This study synthesized and characterized a CuAlO2/CuGaO2 heterostructure and evaluated its photocatalytic performance. The heterostructure exhibited superior performance compared to individual CuAlO2 and CuGaO2 photocatalysts, with increased carrier concentration, enhanced redox capabilities, superior electrochemical stability, and reduced interfacial resistance. Photocatalytic experiments demonstrated the remarkable oxidation potential and notable reduction activity of the heterostructure, outperforming CuAlO2 and CuGaO2 in degradation rates and hydrogen production rates, respectively. These findings highlight the superior performance and broad applicability of the CuAlO2/CuGaO2 heterostructure in various photocatalytic reactions.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Micka Bah, Daniel Alquier, Marie Lesecq, Nicolas Defrance, Damien Valente, Thi Huong Ngo, Eric Frayssinet, Marc Portail, Jean-Claude De Jaeger, Yvon Cordier
Summary: This study investigates the AlN nucleation layer issue in GaN high frequency telecommunication and power switching systems fabricated after heteroepitaxy on Silicon or Silicon Carbide. It is shown that using 3C-SiC as an intermediate layer can significantly decrease RF propagation losses. Measurements and analyses demonstrate that dopant diffusion into the 3C-SiC pseudo-substrate is confined beneath the interface, and a slightly conductive zone is present beneath the AlN/3C-SiC interface, explaining the low propagation losses obtained for the devices. This work highlights the importance and efficiency of the 3C-SiC intermediate layer as a pseudo-substrate.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuang Wang, Lijun Wu, Zhiqing Wang, Ziyue Qian
Summary: The geometric structure and electrical properties of zigzag and armchair DWSiNT perfect tubes with different Stone-Wales defects were simulated using the SCC-DFTB method. It was found that the atomic arrangement, stability, energy gap, and charge distribution strongly depend on the type of tube. The effects of strong and weak electric fields on the tubes were also investigated, showing different impact on stability and energy gap. These findings have implications for future experimental studies.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Nanda Kumar Reddy Nallabala, Sunil Singh Kushvaha, Sambasivam Sangaraju, Venkata Krishnaiah Kummara
Summary: This study focuses on the preparation and performance of MIS-type high-k dielectric oxide-based UV photodetectors. The researchers found that the Au/Ta2O5/GaN devices prepared on Ta2O5/GaN heterojunction with post-annealing exhibited improved photoresponsivity, EQE, and rise/fall times. This improvement is attributed to the optimized band configuration of the Ta2O5/GaN heterostructure and the effect of post-annealing on photogenerated charge carriers.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Jean-Francois Michaud, Marc Portail, Daniel Alquier, Dominique Certon, Isabelle Dufour
Summary: This paper reviews the use of MEMS devices without sensitive layers in gas detection applications. These devices can measure a physical property of the gas to determine its concentration, and have the advantages of generality and high detection limits.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Kanyu Yang, Chaojie Shi, Ruizhao Tian, Haoyue Deng, Jie He, Yangyang Qi, Zhengchun Yang, Jinshi Zhao, Zhen Fan, Jun Liu
Summary: This study investigates the electrical and synaptic properties of Ag/TiO2 nanorod/FTO-based RRAM devices, focusing on the impact of different seed layer thicknesses on nanorod thickness and RRAM performance. The devices show remarkable achievements in terms of endurance, self-compliance, and resistance switching ratio. The switching mechanism is attributed to space-charge-limited conduction resulting from electron trapping in oxygen vacancy traps. The devices also maintain stable synaptic properties even after undergoing multiple cycles of long-term potentiation and depression.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Karthickraj Muthuramalingam, Wei-Chih Wang
Summary: This study presents a non-destructive approach using terahertz time-domain spectroscopy (THz-TDS) to estimate the electrical properties of semi-insulating compound semiconductors. The study successfully measures the resistivity and carrier concentration of semi-insulating Silicon Carbide (SiC) and Indium Phosphide (InP) wafers using THz-TDS in transmission mode. The simplified Drude model and the Nelder-Mead algorithm are employed to estimate the electrical properties, and the results are in accordance with the manufacturer specifications. The feasibility of non-destructive mapping of the electrical properties is demonstrated, offering a promising tomographic inspection approach for online monitoring.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Pengfei Wei, Rui Tong, Xiaofeng Liu, Yao Wei, Yongan Zhang, Xu Liu, Jian Dai, Haipeng Yin, Dongming Liu
Summary: This study investigates the influence of SiNx and SiOxNy as rear-side passivation films on the performance of PERC+ cells. SiNx film is found to have better passivation performance and resistance to aluminum paste erosion, while SiOxNy film exhibits better optical performance. By designing multi-layer SiNx/SiOxNy/SiNx stacks, the cells' efficiency and bifaciality are significantly improved.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuangting Ruan, Xiaolan Li, Wen Cui, Zhihui Zhang, Zhihui Xu, Huanqi Cao, Shougen Yin, Shishuai Sun
Summary: Integrating photosensitive electrode materials can effectively improve the low temperature tolerance and enhance energy density and power density. The surface morphology reconstruction technique can increase the active surface area and improve electrolyte contact, leading to higher specific capacity. Additionally, the electrodes demonstrate excellent photoelectric and photothermal conversion abilities, allowing the supercapacitor to maintain high energy density even at low temperatures.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Review
Engineering, Electrical & Electronic
Ashmalina Rahman, James Robert Jennings, Mohammad Mansoob Khan
Summary: This review provides a comprehensive overview of the synthesis and applications of nanostructured CuInS2 in photocatalytic applications. Various strategies, including the introduction of dopants, surface decoration, and heterojunction formation, have been summarized to improve the photocatalytic performance of CuInS2. However, scientific challenges such as the high carrier recombination rate limit the broad application of CuInS2.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
