Article
Chemistry, Multidisciplinary
K. Rubesova, V Jakes, O. Jankovsky, M. Lojka, D. Sedmidubsky
Summary: Two precursors were prepared using a solid state reaction and a sol-gel process, their phase evolution during a 4-step calcination process was observed, and final samples were sintered with either fast or slow cooling. The phase composition, microstructure, and thermoelectric characteristics of the final samples varied, with results showing that the thermoelectric properties depended on the precursors used.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Ceramics
Murilo Dobri Bataliotti, Francine Bettio Costa, Fernando Brondani Minussi, Eudes Borges Araujo, Nelson Batista de Lima, Joao Carlos Silos Moraes
Summary: Tellurium dioxide thin films were prepared using the Pechini method and their structural properties were controlled through heat treatment at different temperatures. The results showed that the heat treatment temperature directly influenced the crystallite size and surface roughness of the films.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
R. Sharma, P. K. Ojha, S. K. Mishra
Summary: In this study, uniform polycrystalline YIG thin films were grown on thermally oxidized Si (100) substrates. X-ray diffraction confirmed the single-phase formation of YIG. Surface morphology and thickness of the thin films were examined using scanning electron microscopy. X-ray photoemission was used to investigate the valence state of constituent elements in the ferrimagnetic thin films with saturation magnetization of 3.11 mu s/f.u. The lowest Gilbert damping constant (a) = 4.754 x 10-3 with an inhomogeneous contribution to the linewidth of 5.04 mT was observed due to extrinsic inhomogeneous growth of the deposited films.
Article
Materials Science, Multidisciplinary
Priyanka Londhe, Nandu B. Chaure, Anjali Athawale
Summary: Titanium dioxide thin films with enhanced properties were synthesized using the sol-gel method, with properties optimized by changing spin speed and doping Al in the TiO2 lattice. Films obtained at 3000 rpm showed superior uniformity, smoothness, compactness, and high dielectric constant, making them potentially useful for various applications such as field-effect transistors and sensors.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Anchal Sharma, Puneet Negi, Ruhit Jyoti Konwar, Hemaunt Kumar, Yogita Verma, Shailja, Prakash Chandra Sati, Bhargav Rajyaguru, Himanshu Dadhich, N. A. Shah, P. S. Solanki
Summary: Pure and doped derivatives of TiO2 with nitrogen and cobalt as dopants were synthesized using auto-combustion sol-gel technique. The doping effects on the structural, optical, and electrical properties were investigated. The results showed that doping can tune the band gap of TiO2, making it suitable for photocatalytic and photovoltaic applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
T. Vidya Sagar, T. Subba Rao, K. Chandra Babu Naidu
Summary: The Ni-Mg-Zn-Fe nanomaterials were prepared via sol-gel technique, where increasing zinc content resulted in larger grain sizes and evident grain boundary creeping mechanism. Analysis on transition temperatures and magnetic properties showed that higher Zn content led to lower transition temperatures.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Fiza Mumtaz, G. Hassnain Jaffari, G. Shabir Khan
Summary: In this study, the local structure of BiFeO3 has been systematically manipulated and its correlation with the electronic structure has been examined in detail. By substituting Eu3+ ions, the structural modification affected bond length, bond angle, and octahedral rotation, leading to a higher symmetry configuration. The changes in electronic transitions and the emergence of 4f levels of the rare earth substituent have been investigated as a function of local changes at the unit cell level. The forbidden electronic transition 6A1g -> 4T1g in a centrosymmetric configuration has also been discussed.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
I Dhanya, Malathy Krishnan, Reny Renji, M. K. Anu, Rachel G. Varghese, Sreejith K. Pisharady
Summary: Thin films of Vanadyl 2, 11, 20, 29, Tetra Tert-Butyl 2,3 Naphthalocyanines [VTTBNc] were prepared by vacuum evaporation technique, and their electrical properties were studied. The conductivity of the thin films showed an exponential variation with temperature, while the density of states near the Fermi level decreased and hopping distance increased with thickness and substrate temperature.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Ik-Jae Lee, Hee Seob Kim, Young Duck Yun, Seen-Woong Kang, Hyo-Yun Kim, Hyuk Chae Kwon, Jin Woo Kim, Mankil Joo, Younghak Kim
Summary: Epitaxial Cu thin films were grown on Al2O3 (0001) substrate, with the surface unaffected by oxygen adsorption from the air. The electrical resistivity decreased as the thickness of Cu layer increased, with the trend described well by a second-order exponential function.
Article
Materials Science, Multidisciplinary
Amit Kumar, Piyush K. Patel, K. L. Yadav, Yogendra Singh, Naveen Kumar, Abdullah, G. Sharma, Satyendra Singh
Summary: The effect of grain boundary resistance (G(BR)) and grain resistance (G(R)) on the magnetoelectric coupling in multiferroic composite thick films of BiFeO3 (BFO) nanocrystalline powder and poly vinylidene-fluoride (PVDF) polymer is significant. The study shows that grain boundary resistance plays an important role in strengthening the magnetoelectric effect in the BFO-PVDF system, with the BFO50 sample demonstrating promising results for device and sensor applications.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Khalid Bashir, Nasir Mehboob, Asad Ali, Abid Zaman, Muhammad Ashraf, Madan Lal, Khaled Althubeiti, Muhammad Mushtaq
Summary: High-quality polycrystalline Cd1-xZnxTe (0 < x < 1) thin films were deposited on soda-lime glass substrates using thermal evaporation technique. The structural, optical, and electrical properties were investigated, showing changes in optical properties and an increase in photocurrent with higher Zn content.
Article
Chemistry, Multidisciplinary
Xiaolong Zhang, Hongli Suo, Zili Zhang, Shuai Ye, Lin Ma, Min Liu, Yaotang Ji, Xufeng Wang, Kausar Shaheen, Lei Wang, Qiuliang Wang
Summary: Doping of nanoparticles is an effective method to improve the performance of nanocomposite thin films. This study utilized 2D-XRD technique to investigate the orientation and phase evolution of BYNO doped particles in YBCO. It was found that the BYNO particles near the LAO substrate had the same orientation, while the rest of the particles had random orientation. The higher random orientation of BYNO particles contributed to the improved superconducting properties of the thin films. A nucleation and growth model for the BYNO-doped YBCO nanocomposite film was established.
Article
Chemistry, Multidisciplinary
Hala R. Mahmoud, M. Saif, Mona A. Naghmash
Summary: In this study, M/BS@Ag core-shell nanoparticles were prepared for the first time as catalysts for the catalytic decomposition of hydrogen peroxide. The nanoparticles were synthesized in a simple two-step process, with the M/BS catalysts and Ag being coated through a thermal reduction route to form the core-shell structure, showing good catalytic activity and stability.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Ceramics
Ian A. Brummel, Daniel E. Drury, Andrew R. Kitahara, Farid El Gabaly, Jon F. Ihlefeld
Summary: Lithium zirconium phosphate (LiZr2P3O12) thin films were prepared using a chemical solution deposition approach at temperatures between 700°C and 775°C, with post-annealing significantly affecting the crystallinity, grain size, and ion conductivity properties of the films. Single high-temperature annealing improved ion conductivity, while per-layer annealing showed a more complex effect with an initial increase followed by a decrease in ion conductivity. These results suggest that different post-deposition processing methods can greatly influence the ion conducting properties of LiZr2P3O12 thin films.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Amira Bougoffa, E. M. Benali, A. Benali, M. Bejar, E. Dhahri, M. P. F. Graca, M. A. Valente, G. Otero-Irurueta, B. F. O. Costa
Summary: In this work, a multifunctional material (La0.8Ca0.2)(0.4)Bi0.6FeO3 was synthesized using a sol-gel process. The material exhibits a Pnma perovskite structure at room temperature and shows a colossal value of real permittivity at 350 K, making it suitable for energy storage devices. The study also reveals that correlated barrier hopping conduction mechanism is dominant in the temperature range of 150-170 K, while small polaron tunnel conduction is more appropriate in the temperature range of 250-320 K.
Article
Engineering, Electrical & Electronic
Sujit A. Kadam, Yuan-Ron Ma, Yan-Ruei Chen, Yuvraj H. Navale, Amol S. Salunkhe, Vikas B. Patil, Sachin D. Ralegankar, Pravin D. More
Summary: Among all the transition metal oxides, iron oxide-based materials are excellent for supercapacitor performance. In this study, Mn-incorporated alpha-Fe2O3 nanostructured thin films were prepared via spray pyrolysis. The effects of Mn concentration on the structural and optical properties of the films were investigated. It was found that increasing Mn concentration can tune the band gap of the films and affect the supercapacitive performance. The 7% Mn-incorporated alpha-Fe2O3 nanostructured electrode exhibited excellent specific capacitance, energy density, and power density in the electrolyte.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Analytical
Gajanan M. Hingangavkar, Yuvraj H. Navale, Tanaji M. Nimbalkar, Ramesh N. Mulik, Vikas B. Patil
Summary: Nanoflowers of WO3 were grown on glass substrate using an inexpensive hydrothermal method at low temperatures. The structure and morphology of the WO3 nanoflowers were studied using various characterization techniques. The nanoflowers exhibited a hexagonal crystal structure and a porous morphology with a high specific surface area. They showed exceptional gas sensing properties towards toxic NO2 gas, with good reproducibility and stability. The interaction mechanism between the gas and the WO3 nanoflowers was investigated using impedance spectroscopy.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Pravin More, Sujit A. Kadam, Yuan-Ron Ma, Yan-Ruei Chen, Nilesh Tarwal, Yuvraj Navale, Amol Salunkhe, Vikas Patil
Summary: A pristine copper oxide and manganese-doped copper oxide nanostructured films were prepared using a simple spray pyrolysis technique. The effects of Mn doping on the supercapacitive performance of the copper oxide electrode were studied, and a maximum specific capacitance of 801.61 F/g was obtained for the manganese-doped copper oxide thin film electrode.
Article
Materials Science, Multidisciplinary
N. L. Tarwal, D. P. Mali, K. V. Patil, S. L. Patil, V. L. Patil, V. B. Patil, C. C. Revadekar, T. D. Dongale, P. S. Patil, P. M. Shirage, J. H. Jang
Summary: In this study, nanostructured ZnO thin films were deposited on glass/FTO substrates using a simple and cost-effective spray pyrolysis technique. The structural and compositional properties of the deposited films were investigated, and it was found that they exhibited a crystalline nature with nanoflakes-like morphology. The bipolar resistive switching properties of the fabricated memristive devices were also studied, and it was observed that they showed non-ideal memristor behavior. Additionally, the ZnO-based memristive devices exhibited good non-volatile memory properties and reliable device performance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Kailas K. K. Tehare, Priyanka K. K. Bhadke, Sambhaji S. S. Bhande, Sachin T. T. Navale
Summary: The effects of acidic treatment on the photovoltaic properties of dye-sensitized solar cells were investigated. TiO2 nanostructure was prepared using a chemical bath deposition method and modified with various acidic treatments. The results showed that acidic treatments significantly affected the structure, morphology, optical properties, electrochemical properties, and photovoltaic properties. XRD analysis confirmed the formation of TiO2 nanostructure electrodes. After acidic surface treatment, the photoconversion efficiency increased from 1.97% to 3.23%, electron lifetime increased, and charge transfer resistance decreased.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Gajanan M. Hingangavkar, Sujit A. Kadam, Yuan-Ron Ma, Ramesh N. Mulik, Vikas B. Patil
Summary: Facile hydrothermal route was employed to prepare MoS2 nanoparticles (NPs) with superior specific surface area and hexagonal lattice structure. The MoS2 NPs demonstrated excellent gas sensing performance towards H2S gas, with a fast response and recovery time. It could detect as low as 1 ppm concentration of H2S gas.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Reshma N. Dhanawade, Nanasaheb S. Pawar, Manik A. Chougule, Gajanan M. Hingangavkar, Yogesh M. Jadhav, Tanaji M. Nimbalkar, Yuvraj H. Navale, Ganesh T. Chavan, Chan-Wook Jeon, Vikas B. Patil
Summary: A room temperature (25 degrees C) NH3 biomarker sensor using polyaniline (PAni)-CeO2 nanohybrid was developed. The nanohybrid exhibits a cubic crystal structure with interconnected nanofiber surface morphology. The sensor shows a significant response towards NH3 gas and has excellent stability, reproducibility, and response time. The interaction mechanism between NH3 gas and the sensor was studied using impedance spectroscopy.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Avinash C. Molane, Shivani S. Gavande, Tanaji M. Nimbalkar, Amol S. Salunkhe, Pravin D. More, Vikas B. Patil
Summary: In this study, a facile electrospinning method was used to fabricate nanofibrous tin oxide electrodes with different annealing temperatures, which showed potential in high-performance energy storage applications. The tin oxide processed at 400 degrees C exhibited excellent specific capacitance (844 F/g) and interfacial capacitance (0.1434 F/cm(2)) at 1 mV/s scan rate in 1 M NaOH aqueous electrolyte, and demonstrated remarkable stability even after 2000 cycles. The electrodes were confirmed to have a morphology with beads formation through scanning electron microscopy, and the hydrophilic nature of the electrode surface was confirmed by water contact angle measurements. Structural analysis was conducted using X-ray diffraction (XRD), Raman spectroscopy, Energy dispersive X-ray analysis (EDAX), and X-ray photoelectron spectroscopy (XPS). Furthermore, the flexible symmetric supercapacitor device showed excellent flexibility and electrochemical stability during mechanical bending up to 180 degrees, suggesting that SnO2 is a promising electrode material for future flexible and wearable electronics devices.
Article
Chemistry, Multidisciplinary
Reshma N. Dhanawade, Nanasaheb S. Pawar, Manik A. Chougule, Gajanan M. Hingangavkar, Tanaji M. Nimbalkar, Ganesh T. Chavan, Chan-Wook Jeon, Vikas B. Patil
Summary: In this study, PAni-CeO2 nanohybrids with CSA intercalation (10-50 wt %) were synthesized by facile chemical oxidative polymerization. The structural and morphological properties of the nanohybrids were investigated using XRD, SEM, TEM, XPS, and Raman spectroscopy. The gas sensing performance of the CSA intercalated PAni-CeO2 nanohybrids was explored, and the results showed that PAni-CeO2-CSA (50 wt %) nanohybrid exhibited a highest response of 93% towards 100 ppm NH3 at 30 degrees C, with fast response, quick recovery, and admirable stability.
Article
Engineering, Environmental
Gajanan M. Hingangavkar, Sujit A. Kadam, Yuan-Ron Ma, Sushilkumar S. Bandgar, Ramesh N. Mulik, Vikas B. Patil
Summary: A hydrothermal route was used to synthesize molybdenum disulfide (MoS2)-graphene oxide (GO) hybrids. Various characterization techniques were employed to analyze the gas sensing performance of the prepared MoS2-GO (1 to 5 wt%) hybrids. The results showed that the hybrid with 3% GO exhibited the highest response towards 100 ppm hydrogen sulfide (H2S) gas at room temperature, with the lowest detected concentration of 1 ppm and a response value of 0.51%. This study investigated the synergistic effect of MoS2 NPs and GO sheets on the gas sensing performance for the first time.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Uzma K. H. Bangi, Akshay A. Ransing, Rushikesh P. Dhavale, Hyung-Ho Park, Vikas B. Patil
Summary: Experimental work was conducted to enhance the properties of ambient pressure dried silica aerogels for thermal insulation applications. The quality of the aerogels produced was determined by the sol-gel method and silylating agent used. A two-step sol-gel method was employed to synthesize sodium silicate-based aerogels, with silylation carried out using trimethylchlorosilane (TMCS). The aerogels prepared using 33.3% TMCS exhibited desirable characteristics such as narrow pore size distribution, homogenous tiny particles, improved visual optical transmission, low density, low thermal conductivity, high specific heat capacity, high porosity, high surface area, and stable hydrophobicity up to 445°C. The thermal insulating property of these aerogels was confirmed in the laboratory, demonstrating their suitability for thermal insulation.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Chemistry, Analytical
Linh Ho Thuy Nguyen, Sachin T. Navale, Dong Hoon Yang, Hue Thi Thu Nguyen, Thang Bach Phan, Jin-Young Kim, Ali Mirzaei, Tan Le Hoang Doan, Sang Sub Kim, Hyoun Woo Kim
Summary: This work demonstrates the potential of a novel Fe-MOF (VNU-15) to effectively detect low-concentration VOCs, particularly acetone, using a solvothermal strategy for synthesis. Fe-MOFs synthesized in this way exhibited high crystallinity, thermal stability, polyhedral crystal-shaped morphology, and a large surface area, making them suitable for gas-sensing applications. Lab-scale gas-sensing devices fabricated with Fe-MOF powder showed selectivity for detecting acetone with a gas response of 1.68-10 ppm and a response time of 64 s at 50 degrees C.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Tanaji M. Nimbalkar, Yogesh M. Jadhav, Reshma N. Dhanawade, Nanasaheb S. Pawar, Avinash C. Molane, Shivani S. Gavande, Ganesh T. Chavan, Chan-Wook Jeon, Shrikrishna D. Sartale, Vikas B. Patil
Summary: CeO2 nanoparticles were synthesized using a simple chemical method without surfactants or additives at low temperature and short reaction time. The effect of annealing temperatures on the structural, morphological, and chemiresistive properties of the CeO2 nanoparticles was investigated. The CeO2 nanoparticles exhibited a cubic crystal structure and porous morphology, with a specific surface area of 52.92 m2/g. The optimized operating temperature was found to be 150 degrees C, showing excellent response and stability towards NO2 gas.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Inorganic & Nuclear
Sanjit Manohar Majhi, Sachin T. Navale, Ali Mirzaei, Hyoun Woo Kim, Sang Sub Kim
Summary: The development of effective and efficient materials for gas detection is crucial for protecting human health and the environment. Indium oxide has attracted attention due to its gas-sensing applications, but its limited selectivity and performance under humid conditions are challenges. This review explores various strategies, such as morphology engineering and doping, to improve the gas detection performance of indium oxide-based sensors. Different composites of indium oxide have been evaluated to enhance their sensing performances. The review also provides a future outlook on the progress of indium oxide gas sensors.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Review
Chemistry, Analytical
Sachin Navale, Ali Mirzaei, Sanjit Manohar Majhi, Hyoun Woo Kim, Sang Sub Kim
Summary: This review presents the cutting-edge research on chemiresistive gas sensors in Korea, specifically focusing on the research activities of Professors Sang Sub Kim and Hyoun Woo Kim. The review discusses advances in synthesis techniques and strategies to enhance gas-sensing performances of different nanomaterials. It also highlights important achievements, such as optimizing shell thickness in core-shell gas sensors and the design of selective and highly flexible gas sensors-based on WS2 nanosheets.
Article
Chemistry, Multidisciplinary
Alaauldeen A. Duhduh, Chou-Yi Hsu, Mustafa Humam Sami, Anupam Yadav, Russul Thabit, Sagr Alamri, Abdelmajeed Adam Lagum, Ali A. Rajhi
Summary: Density functional theory (DFT) calculations were used to investigate the application of a Zn12O12 nanocage as an anode material in Na-ion batteries (NIBs). The pure nanocage showed low performance, but encapsulating a chloride led to a significant increase in voltage, surpassing carbon nanotubes and C24 fullerene.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Hiroyuki Ikemoto, Toshihiko Fujimori, Takafumi Miyanaga, Reo Kawaguchi, Koki Urita, Masao Tabuchi
Summary: This study investigated the structures of two Se chains confined inside single-walled carbon nanotubes (SWCNTs), revealing that the chains were linear and parallel. The covalent bond between Se and SWCNT was found to be stronger than that between Se and trigonal Se (t-Se). The interaction between chains was attributed to the overlap of electronic orbitals, and the disappearance of this overlap in the encapsulated Se chains enhanced the covalent bonds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Suman Yadav, Atul Gour, Sadhna Singh
Summary: In this study, we investigated the electronic and thermoelectric properties of rare-earth half-Heusler XPtBi (X = Gd, Nd, Y) topological semimetals compounds using density functional theory. Our results indicate that the inclusion of spin orbit coupling has a significant impact on the electronic band structure and spin order, making it promising for spintronic applications. We found different topological states in these compounds and observed enhanced power factor in YPtBi with the inclusion of SOC.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Takahiro Ozawa, Hiroshi Nakanishi, Koichi Kato, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
Summary: In this study, we elucidate the hopping mechanism of hydrogen at intermediate temperature using a combination of experimental data and theoretical calculations. We find that the transition from thermal hopping to quantum tunneling is attributed to resonant tunneling, which is achieved through the resonant tunneling of discrete vibrational states between the edge octahedral site and the tetrahedral site. We also demonstrate that the tunneling rate can be tuned by energy level matching.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ankita Nandi, Ritam Mehera, Moumita Mandal, Paramesh Chandra, Swapan K. Mandal, Naznin Ara Begum, Chandan K. Jana, Nilanjana Das
Summary: In this study, stable biogenic ZnO nanoparticles were successfully synthesized using a biosynthesis method, and their effects on oxidative stress parameters in Saccharomyces cerevisiae were investigated. The results demonstrate that high concentrations of ZnO nanoparticles may induce oxidative stress conditions, suggesting caution in their extensive use.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
P. S. Dighe, A. A. Bhoite, V. L. Patil, N. L. Tarwal, P. B. Sarawade
Summary: In this study, Ni-Co layered double hydroxide (LDH) nanocomposites with excellent electrochemical properties were prepared using hydrothermal technique. The as-obtained material exhibited high specific capacitance and remarkable energy density, showing great potential for supercapacitor applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Muhammad Danish, Misbah ul Islam, Farooq Ahmad, M. Nadeem Madni, M. Jahangeer
Summary: This study synthesized M-type hexaferrite and graphene oxide using sol-gel auto-combustion and modified Hummer process. The structure and morphology of the materials were characterized by XRD and SEM. The experimental results showed that coupling magnetic ferrite with graphene oxide can tune the electromagnetic properties of the materials, with potential applications in various fields.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Abrar U. Hassan, Yuchuan Li
Summary: This study presents a new design strategy of N-doped fused ring electron acceptors for organic dye Y123 in photovoltaic and optical devices. The evaluation of five novel dyes shows their positive contributions to charge transfer. Impressive photovoltaic performance is observed in one of the dyes, with high light harvesting efficiency and maximum power output.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
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
Vladimir V. Poborchii, Victor A. Sachkov, Alexander A. Shklyaev, Alexander V. Fokin, Pavel I. Geshev
Summary: This study investigates the polarized optical absorption and Raman spectra of -5 nm diameter tellurium nanowires confined in chrysotile asbestos nanotubes. The results show a strong interaction between the nanowires and light polarized parallel to the nanowires, while a weaker interaction is observed for light polarized perpendicular to the nanowires. This has significant implications for photonic and photo-electric applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Stanislav Cichon, Frantisek Maca, Vaclav Drchal, Katerina Horakova, Irena Kratochvilova, Jan Lancok, Vladimir Chab, Patrik Cermak, Jiri Navratil, Cestmir Drasar
Summary: In this study, a reliable method for preparing high-quality single crystal substrates doped with Bi2Se3 was developed. The electronic properties and chemical states of atoms in the substitutional position and native defects in the topological insulator were analyzed using experimental and theoretical methods. The relationship between the position of the Dirac cone and valence band maximum was explored and discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(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, 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, Multidisciplinary
Xinkai Liu, Tingting Liu, Yuanliang Zhou, Jing Wen, Jinmei Dong, Chenggong Chang, Weixin Zheng
Summary: CuS-Mg/S-BC composites modified by one-pot sulfurization exhibited higher removal efficiency in adsorption and photocatalytic removal of dyes, thanks to the functional groups and vacant sites formed at the interface for enhanced adsorption and photon capture.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Yixing Hao, Fang Zhu, Hao Cheng, Sridhar Komarneni, Jianfeng Ma
Summary: A magnetic porous composite catalyst synthesized from CoFe2O4 and CuS showed high degradation efficiency for organic pollutants under visible light conditions, using non-radical degradation as the main pathway.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
