Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
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
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
Chemistry, Physical
Wen-Bin Wu, Julia Kasiuk, Janusz Przewoznik, Czeslaw Kapusta, Ivan Svito, Dang Thanh Tran, Hung Manh Do, Hung Manh Dinh, Johan Akerman, Thi Ngoc Anh Nguyen
Summary: We studied the magnetoresistance mechanisms in a Pt/[Co/Pt]x5 film consisting of a ferromagnetic [Co/Pt]x5 layer with strong perpendicular magnetic anisotropy and a nonmagnetic Pt layer with strong spin-orbit coupling. Two competing contributions, sin2 theta and cos4 theta, were revealed in the electrical resistance of the film at different angles and magnetic fields, corresponding to the out-of-plane rotation of the magnetization M(theta) perpendicularly to the electric current. The cos4 theta contribution is attributed to the anisotropic magnetoresistance of the ferromagnetic layer, while the sin2 theta contribution is mainly associated with the spin Hall magnetoresistance originating from the Pt layer. The strong influence of the electric current on the magnetization of the film is of high relevance for magnetic memory design technologies.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Wan-Ying Wang, Gui-Chang Wang
Summary: In this study, the catalytic activity and carbon deposition resistance of 14 Ni3X-type alloy catalysts were calculated using density functional theory. Ni-based catalysts with high activity and stability, such as Ni3V, Ni3Cr, Ni3Mn, Ni3Nb, and Ni3Mo, were selected and considered to have high application potential. Measurement of catalyst activity and stability through descriptors was explored, and the superiority of Ni3Mo catalytic performance was further verified.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Tangchun Wang, Binbin Sun, Weijie Wang, Jinchen Dong, Jianbo Qu, Zhiliang Zhang
Summary: In this study, a novel SERS substrate was fabricated by utilizing gelatin gels and silver nanoparticles. The substrate exhibited excellent sensitivity and detection capability, being able to detect low concentrations of fungicides in lake water. It is expected to serve as a fast and simple method for highly sensitive detection of hazardous contaminants and fungicides in aquaculture fields.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuan He, Chengwei Sun, Shidong Fang, Muhammad Shaban, Changlun Chen
Summary: A facile NTP treatment was conducted to modify NiCoLDH nanowires, introducing N-doping and oxygen vacancies for improved electrochemical performance. The optimized electrode (P-NiCoNW/CC-150) showed outstanding capacitance performance and excellent cycling stability. An asymmetric supercapacitor device assembled with the electrodes exhibited high energy density.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Younghwan Lee, Se Hyun Kim, Hyun Woo Jeong, Geun Hyeong Park, Jaewook Lee, Young Yong Kim, Min Hyuk Park
Summary: This study investigates the structural, chemical, and electrical properties of Hf0.5Zr0.5O2 under different electrode conditions. The results show that Hf0.5Zr0.5O2 with a Mo electrode exhibits higher remanent polarization and a higher fraction of ferroelectric orthorhombic phase compared to Hf0.5Zr0.5O2 with a TiN electrode. Additionally, the concentration of oxygen vacancies in Hf0.5Zr0.5O2 with a Mo electrode is significantly lower, explaining its wake-up free behavior.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Cheng-zhao Jin, Meng-yuan Liu, Cai-yun Wang, Xin-an Yang, Li-li Yao, Wang-bing Zhang
Summary: The difference in bandgap structure results in better charge separation performance of crystalline/amorphous heterojunctions. Adjusting the facets at the material contact interface can further improve the charge separation performance of such heterojunctions. This article successfully synthesized three novel ZnO/amorphous Bi2WO6 heterojunctions and demonstrated their efficient carrier separation characteristics and excellent photocatalytic performance through photoelectric testing.
APPLIED SURFACE SCIENCE
(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
Chemistry, Physical
Atsushi Nomura, Tohru Kurosawa, Migaku Oda, Satoshi Demura, Shogo Kuwahara, Sora Kobayashi, Hideaki Sakata
Summary: The study investigates the tunneling spectra of 1T-TiSe2 in the CDW state and the dip structure below the Fermi level, aiming to determine whether this dip is a CDW gap. The answer to this question is crucial for understanding the driving mechanism of CDW.
Article
Nanoscience & Nanotechnology
Spyridon G. Kosionis, Emmanuel Paspalakis
Summary: In this study, we theoretically investigate the pump-probe response and the four-wave mixing spectrum in a hybrid system composed of a semiconductor quantum dot and a spherical metal nanoparticle. Using a density matrix methodology, we calculate the absorption/gain, dispersion, and four-wave mixing spectra, and analyze their spectral characteristics. We also apply the metastate theory and the dressed-state picture to predict the positions of the spectral resonances.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2024)
Article
Chemistry, Multidisciplinary
Ikkurthi Kanaka Durga, Dasha Kumar Kulurumotlakatla, Tholkappiyan Ramachandran, Yedluri Anil Kumar, D. Amaranatha Reddy, K. V. G. Raghavendra, Asma A. Alothman, Sunkara Srinivasa Rao
Summary: Nickel molybdate oxide and tungsten trioxide have potential as electrode materials for supercapacitors, but their poor conductivity and fast capacitance fading limit their performance. By building a hierarchical nanoflower structure, the electrochemical performance of the supercapacitor is enhanced.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Physical
Hao Fu, Zhangliang Xu
Summary: In this study, the adsorption mechanisms and detection performance of formaldehyde, ammonia, and sulfur dioxide on undoped and metal-doped ZnO surfaces were investigated using density functional theory. The results showed that formaldehyde and ammonia were physically adsorbed on the undoped ZnO surface, while sulfur dioxide was weakly chemisorbed. The adsorption energy was enhanced when ZnO was doped with metals. These findings provide theoretical guidance for the application of ZnO substrate materials in gas sensitivity research.
Article
Chemistry, Multidisciplinary
Ashvin Kanzariya, Shardul Vadalkar, Sourav Kanti Jana, L. K. Saini, Prafulla K. Jha
Summary: Graphene quantum dots (GQDs) with quantum confinement and size effects show great potential for sensing applications. This computational study investigates the adsorption performance of pristine and transition metal-doped coronene GQDs to hazardous gases. The results suggest that doping with chromium (Cr) or nickel (Ni) enhances the gas adsorption performance, with Cr-doped GQDs showing strong interaction with gas molecules and potential as a gas remover, and Ni-doped GQDs showing potential as a CNCl sensor.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Elnaz Saadinia, Mohammad Almasi Kashi, Amir H. Montazer
Summary: Fe-based nanowires containing nonmagnetic elements, fabricated using a pulse electrodeposition method in porous anodic alumina membranes, exhibit magnetic tunability. The magnetic properties of Fe100-xSnx NW arrays, with a diameter of about 35 nm, such as coercivity and squareness values, decrease with increasing Sn content. The structure of the FeSn NWs, dominated by Fe or FeSn alloy crystal phase, can be either single domain or pseudo-single domain states depending on the Sn content.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Physical
A. S. Petrov, D. I. Rogilo, A. I. Vergules, V. G. Mansurov, D. V. Sheglov, A. V. Latyshev
Summary: This study investigates Si mass transport and morphological transformations on the Si(111) surface during (root 3 x root 3)-Sn reconstruction formation and Si homoepitaxy. The research shows that the formation of different Sn phases at different temperatures affects the Si island nucleation and monatomic step shift, which in turn impact the morphology of the Sn/Si(111) interface. Electromigration-induced drift of disordered Sn domains leads to enhanced noncompensated Si mass transport and surface roughening.
Article
Chemistry, Physical
Yuanmeng Zhang, Tingting Wang, Xiaohu Zhang, Ya Sun, Guozhi Fan, Guangsen Song, Bo Chai
Summary: This study developed a porous pie-like nitrogen-doped biochar catalyst for the degradation of sulfamethoxazole. The catalyst exhibited excellent catalytic activity and high degradation efficiency for various organic pollutants in different conditions and water environments.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhiqian Li, Xue Yang, Qi Fang, Tao Cheng, Zining Zhang, Hongjuan Zhang, Jing Tang
Summary: In this study, CuO nanosheets were modified by in-situ boron doping to enhance the electroreduction performance of carbon dioxide. The optimized B-CuO NS catalyst exhibited a high faradaic efficiency of 54.78% for C2+ production at a specific potential. This work provides a rational design strategy for developing efficient catalysts for the electroreduction of CO2.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Woo Tae Jun, Ji Young Hwang, Hyung-Kyu Lim, Duck Hyun Youn
Summary: A composite catalyst of IrOx nanoparticles dispersed in CeO2 support (IrOx/CeO2) was prepared for oxygen evolution reaction (OER), showing excellent performance and stability. The lower-valance Ir3+ species near the catalyst surface served as active sites for OER.
APPLIED SURFACE SCIENCE
(2024)
