Article
Materials Science, Multidisciplinary
M. B. Muradov, S. J. Mammadyarova, G. M. Eyvazova, O. O. Balayeva, I. Hasanova, G. Aliyeva, S. Z. Melikova, Mahammadali I. Abdullayev
Summary: This research article investigates the synthesis and characterization of Cu-doped Co3O4 nanoparticles with varying concentrations. The study shows that the size, band gap, and photocatalytic activity of these compounds can be controlled by changing the Cu doping content. X-ray diffraction analysis reveals no impurities associated with copper or copper oxide phases in the doped samples. The highest photocatalytic degradation of methylene blue dye under visible light is achieved using 2% Cu-doped Co3O4 nanoparticles annealed at 500 degrees C.
Article
Chemistry, Multidisciplinary
Jini Varghese
Summary: Porous nanocomposites containing CuS-ZnS nanospheres and graphene layers were synthesized via a simple method, demonstrating efficient photocatalytic performance over a wide pH range. The nanocomposites showed excellent dye degradation efficiency due to enhanced surface area, porosity, better UV light harvesting capacity, and fast electron-hole transfer.CuS-ZnS decorated graphene is a promising photocatalyst for the degradation of dye mixtures in industrial applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Ceramics
Yiwen Zhang, Baogang Guo, Wei Feng, Yuanli Li, Haifeng Liu, Renjie Li, Hongwei Wu, Xiaoyan Zhong, Guohua Ma, Ruishi Xie
Summary: This study synthesized Eu:Bi2WO6 nanostructures with different concentrations of Eu ions and generated CdS on their surface to form Eu:Bi2WO6/CdS composites. The effects of Eu doping on the properties of the composites were studied, clarifying the mechanisms for improving optical and photocatalytic performance. The introduction of Eu3+ altered the band gap of the photocatalyst, while epitaxial CdS decreased recombination probability and improved photocatalytic activity. This research provides new insights for rational design and understanding of atomic-scale complex structures for applications in energy and environmental protection.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Ziyao Yan, Jie Chen, Xuting Huang, Xiaoyang Zhu
Summary: In this study, the enhancement of magnetic properties of SnS2 by doping Mn was investigated, revealing a significant increase in magnetism and potential applications in spintronic devices. The joint effect of intralayered and interlayered Mn atoms was deduced to be responsible for these changes. Additionally, the crystal structure remained unchanged after doping, indicating the effectiveness of Mn-doped SnS2 in spintronic applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Elham Abkar, Mohammad Hassanpour, Omid Amiri, Mojgan Ghanbari, Masoud Salavati-Niasari
Summary: The study synthesized Tl4HgI6/HgI2 nanocomposites using a rapid ultrasonic method, demonstrating their excellent photocatalytic and antibacterial activity for decolorization and inhibition. The nanocomposites show great potential for various industrial applications.
Article
Chemistry, Physical
Atefeh Panahi, Rozita Monsef, Merzah Kareem Imran, Ayat Abdul Mahdi, Ali Abdul Kadhim Ruhaima, Masoud Salavati-Niasari
Summary: A study demonstrates the fabrication and characterization of TmVO4 nanostructures and TmVO4/Fe2O3 nanocomposites for effective photodecomposition of organic contaminants. The TmVO4/Fe2O3 nanocomposites show higher photocatalytic activity compared to pure TmVO4 and Fe2O3 nanoparticles. The recyclable magnetic TmVO4/Fe2O3 nanocomposites achieve 68.3% degradation efficiency of eriochrome black t (EBT) using visible light.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Electrical & Electronic
K. Vinotha, B. Jayasutha, M. John Abel, K. Vinoth
Summary: Semiconducting Indium-doped copper sulfide thin films were deposited on glass substrate by a simple and economical chemical bath deposition technique. The electrical, structural, optical, and morphological characterization of the films were studied, and their photocatalytic properties were evaluated. The results showed that the In doping affected the structural and optical properties of the CuS thin films, leading to a red-shift in the band edge and decreased bandgap energy, while also enhancing the photocatalytic degradation efficiency.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Vishal Dhiman, Manmeet Kaur, Dixit Prasher, Deepesh Bhardwaj, Kushvinder Kumar, Suresh Kumar
Summary: Photocatalysts have gained much attention due to water pollution caused by the rapid usage of organic dyes. This study synthesized rose flower-shaped CuS nanostructures for the first time using a solvothermal technique and characterized them. The findings showed that CuS nanostructures exhibit good degradation activity towards organic dyes under natural sunlight.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
A. S. Bhosale, K. K. Abitkar, P. S. Sadalage, K. D. Pawar, K. M. Garadkar
Summary: ZnO nanoparticles were successfully synthesized in this study, with unique structural and optical properties characterized. The nanoparticles showed excellent photocatalytic performance when calcined at 400 degrees Celsius under UV-Vis light, as well as strong antibacterial activity against certain bacterial strains.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Review
Chemistry, Multidisciplinary
Patricio Paredes, Erwan Rauwel, Protima Rauwel
Summary: This review discusses the recent advances in the synthesis approaches, fundamental properties, and photocatalytic activity of Cu3N nanostructures. The study found that the synthesis conditions play a crucial role in the shape and size control of Cu3N. Cu3N nanostructures exhibit a narrow bandgap and excellent optical properties, and the presence of Cu and N vacancies on the surface of the nanoparticles contributes to their photocatalytic dye-degradation potential. Additionally, combining plasmonic nanoparticles with other photocatalysts enhances the efficiency of Cu3N.
Article
Engineering, Environmental
Fahim A. Qaraah, Samah A. Mahyoub, Abdo Hezam, Qasem A. Drmosh, Janvier Munyaneza, Qi Yu, Guangli Xiu
Summary: Constructing a 1D/2D O-doped g-C3N4 heterojunction is an effective approach to enhance the efficiency of g-C3N4 for organic pollutant decomposition under visible light irradiation. The improved photocatalytic activity of the heterojunction is attributed to enhanced absorption capability, high surface area, and separation efficiency of photogenerated charge carriers. The fabrication technique and performance evaluation indicate the potential of this material for environmental remediation applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Sarish Rehman, Faheem Ahmed, Muhammad Umar Aslam Khan, Abdullah Aljaafari, Sivakumar Manickam, Pau Loke Show
Summary: In this study, hematite nanostructures with four different morphologies were synthesized using a one-step solvothermal method. Magnetic measurements revealed that the nanostructures are superparamagnetic and their magnetization varies with size and shape. The photocatalytic performance of the structures was evaluated, showing high activity for the degradation of methylene blue and rhodamine B.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Environmental Sciences
Tariq J. Al-Musawi, Narjes Sadat Mazari Moghaddam, Seyedeh Masoomeh Rahimi, Mohamadamin Amarzadeh, Negin Nasseh
Summary: Hexadecyltrimethylammonium-bromide-activated zeolite nanoparticles coated with copper sulfide (ZEO/HDTMA-Br/CuS) were evaluated as a photocatalyst for the degradation of metronidazole (MET) under sunlight. The study optimized various parameters and found that ZEO/HDTMA-Br/CuS achieved 100% degradation efficiency under specific conditions, making it an exceptional catalyst for the photodegradation of MET in aqueous media.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Tariq J. Al-Musawi, Narjes Sadat Mazari Moghaddam, Seyedeh Masoomeh Rahimi, Mohamadamin Amarzadeh, Negin Nasseh
Summary: ZEO/HDTMA-Br/CuS showed excellent catalytic properties for the photodegradation of metronidazole, and achieved 100% degradation efficiency under optimized conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Haitao Ma, Keke Wang, Qilu Zeng, Peihan Li, Shiping Lyu, Bohan Li, Xia Luo, Liyue Jiang, Min Cao, Bing Liao, Zhongping Qiu, Likai Hao, Can Wang
Summary: This study synthesized biological zinc/copper sulfide composites with excellent visible-light photocatalysis effects and broad-spectrum antibacterial activity using Shewanella onesidensis metabolism. The biocomposite showed nanostructure with sizes between 5 and 20 nm and demonstrated high efficiency in removing pollutants and killing harmful bacteria. The research highlights the potential of microbial synthetic functional nanomaterials in tackling bacterial infections and heavy metal contamination.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Morteza Nouri, Nasser Zare-Dehnavi, Farid Jamali-Sheini, Ramin Yousefi
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Energy & Fuels
Mohammad Badrooj, Farid Jamali-Sheini, Naeimeh Torabi
Article
Engineering, Electrical & Electronic
Reza Zeinodin, Farid Jamali-Sheini, Mohsen Cheraghizade
Summary: This study investigated the effects of different concentrations of lead atoms on the physical properties of CuS nanostructures for optoelectronic applications. The addition of lead concentrations resulted in an increase in crystallite sizes and the formation of disk-like nanostructures with reduced average size. Optical analysis showed an increase in absorption and emission intensity in doped samples. Additionally, electrical tests indicated improved optoelectronic performance of CuS nanostructures in the presence of lead atoms.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Engineering, Chemical
Maryam Zargarpour, Farid Jamali-Sheini, Mohsen Cheraghizade
Summary: This research investigated the effect of iron dopants on the physical properties of copper selenide nanoparticles, finding that iron concentrations affect crystallite size and strain, leading to an increased optical energy band gap. Electrical studies revealed the presence of the SCLC mechanism in iron-doped samples, with carrier mobility increasing as Fe concentrations decrease.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Seyedeh Laleh Mousavi, Farid Jamali-Sheini, Mohammad Sabaeian, Ramin Yousefi
Summary: In this study, un- and copper-doped tin sulfide nanoparticles were synthesized and added to polymer solar cells. The structural, optical, and electrical properties of the nanoparticles on cell performance were investigated. Results showed that adding SnS nanoparticles improved the performance of the cells.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Maryam Zebarjad, Farid Jamali-Sheini, Ramin Yousefi
Summary: The nanostructured iron pyrite films were deposited on FTO substrate by electrodeposition method, exhibiting cubic pyrite formation. The morphology of Sn-doped specimens remained unchanged at low Sn concentrations but changed at high concentrations. Photoluminescence spectra showed emission bands in the green and red regions, with an energy band gap of -1.63 eV. Optoelectronic measurements indicated p-type conductivity in the films, with photodetectors showing a significant response in the form of increased spectral range of visible light with minimum Sn concentration doping.
SOLID STATE SCIENCES
(2021)
Article
Chemistry, Physical
Mohammad Gharibshahi, Farid Jamali-Sheini, Ramin Yousefi
Summary: In this study, SnSe nanorods were prepared using ultrasound irradiation and the effect of irradiation time on the physical properties of these nanostructures was investigated. Results showed that ultrasound irradiation led to a decrease in crystallite size, a shift in absorption spectra towards higher wavelengths, and changes in carrier concentration and electrical properties.
SURFACES AND INTERFACES
(2021)
Article
Energy & Fuels
Mohammad Badrooj, Farid Jamali-Sheini, Naeimeh Torabi
Summary: Achieving a low-toxicity mixed Sn/Pb halide perovskite solar cell with higher performance and lower cost is still a major challenge. In this study, the element Zn was incorporated as a substitute cation for the toxic element Pb into the CH3NH3Sn0.25Pb0.75I3 perovskite compound, leading to improved crystal quality, surface coverage, grain size, and reduced non-radiative recombination mechanism. The findings provide a new area for further research on lead reduced hybrid perovskite solar cells.
Article
Materials Science, Ceramics
Maryam Zebarjad, Farid Jamali-Sheini, Ramin Yousefi
Summary: In this study, nanostructured pyrite (FeS2) films doped with different concentrations of Zn were fabricated using the electrodeposition method. Photodetectors were made using FTO/TiO2/un- and Zn-doped FeS2/Au configurations for optoelectronic applications. The effects of Zn concentration and TiO2 buffer layer on device efficiency were investigated. Results showed that Zn doping increased photocurrent and conductivity, reduced recombination rate and defects, and enhanced carrier mobility. The device with the lowest Zn doping concentration exhibited the highest efficiency, with an EQE of 48.16%, an R of 206.30 mAW(-1), and a D* of 3.3x10(+9) (Jones) in the visible light spectrum.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Maryam Zamani, Farid Jamali-Sheini, Mohsen Cheraghizade
Summary: This research investigated the effect of Ag coating on the physical properties of mesostructured bismuth sulfide (Bi2S3) films for optoelectronic applications. The results showed that Ag coating reduced the morphology size on the surface of the film, decreased the optical energy band gap, and increased the carrier concentration and flat band potential. The study also revealed the presence of space-charge-limited current behavior in the free-coated device, indicating changes in the electronic band structure due to Ag coating. The addition of Ag coating enhanced the quality parameters of the photodetectors, and the response increased with longer wavelengths. Mesostructured Bi2S3 films have the potential to be used as self-powered and ultraviolet-to-visible range photodetectors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Behrouz Baghbanzadeh-Dezfuli, Farid Jamali-Sheini, Mohsen Cheraghizade
Summary: In this research, the effect of sulfur dopant concentrations on the physical properties of nanostructured antimony selenide films was investigated. It was found that sulfur dopant changed the size of nanoparticles on the film surface and improved the electrical and photodetection performance of the devices.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Optics
Behrouz Baghbanzadeh-Dezfuli, Farid Jamali-Sheini, Mohsen Cheraghizade
Summary: In this study, antimony selenide (Sb2Se3) nanostructure films were deposited by the electrodeposition method using deionized water and ethylene glycol as solvents. The films were analyzed and compared using different methods, and it was found that using ethylene glycol as a solvent resulted in more suitable stoichiometric ratio, enhanced uniformity, and compactness in the structure of Sb2Se3 films.
Article
Thermodynamics
Somayeh Kamalifar, S. M. Peyghambarzadeh, Shima Azizi, Farid Jamali-Sheini
Summary: Fouling is a major cause of energy loss in oil industry, leading to significant economic losses when oil operation units are shut down. There is currently no global or specific solution for reducing crude oil fouling. This study proposes an accurate and sensitive thermal method for fouling detection in crude oil systems, and investigates the impact of key operating parameters on fouling rate. The results show that heat flux, bulk temperature, and fluid velocity have direct or inverse relationships with fouling rate.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Materials Science, Multidisciplinary
Mohsen Cheraghizade, Farid Jamali-Sheini
Summary: This research investigated the impact of different zinc (Zn) concentrations on the physical and optoelectronic properties of copper selenide (Cu3Se2) nanostructures for self-powered and solar-range photodetector applications. The results showed the formation of a tetragonal Cu3Se2 phase with a spherical morphology. The samples exhibited Cu-poor stoichiometry, and the incorporation of Zn atoms in the Cu3Se2 lattice reduced the optical energy band gap. It was observed that Zn concentrations activated the space charge-limited conduction (SCLC) mechanism in the Cu3Se2 devices. The study of band alignments and barrier potentials at different interfaces provided insights into the observed transportation mechanism. Finally, the Zn-doped sample with the highest Zn concentration demonstrated the highest values of responsivity (R), gain (G), and specific detectivity (D*) at 0.127 mA/W, 21.77%, and 3.92 x 10+8 Jones, respectively.
Article
Chemistry, Inorganic & Nuclear
Mehrdad Kavosh, Farid Jamali-Sheini, Ramin Yousefi, Mohsen Cheraghizade
Summary: This research examines the physical and electrical properties of copper sulfide (CuS) nanostructures grown using the sonochemical method. The impact of incorporating zinc (Zn) dopant at varying concentrations is analyzed through various techniques. The study reveals that Zn dopant increases the strain on the crystal lattice of CuS, resulting in a hexagonal covellite structure and smaller CuS nanostructures. Optical analyses indicate changes in absorption intensity and photoluminescence emissions with the addition of Zn dopant, while the electrical properties of CuS are improved. Ultimately, the study demonstrates the enhancements in physical and electrical properties of Zn-doped CuS samples, leading to improved quality parameters of the photodetector.
SOLID STATE SCIENCES
(2023)
Article
Physics, Condensed Matter
A. Jbeli, N. Zeiri, N. Yahyaoui, P. Baser, M. Said
Summary: The electronic and optical properties of CdSe/ZnSe semiconductor core/shell quantum dots with hydrogenic donor impurity were investigated theoretically. The perturbation and variational methods were used to calculate the binding energy, photoionization cross-section, polarizability, and diamagnetic susceptibility of the excited impurity under various conditions. A significant stark shift in the binding energy was observed under the influence of an external electric field.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Rahat Batool, Tariq Mahmood, Sajid Mahmood, Abdul Aziz Bhatti
Summary: This study investigates the effects of alkali metal doping (Na, K, Cs) on MAPbI3 through compositional engineering. The results show that doping Na, K, and Cs can improve the phase stability, thermodynamic stability, and optical absorption of MAPbI3.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
N. A. N. M. Nor, M. A. H. Razali, W. H. A. W. K. Annuar, N. N. Alam, F. N. Sazman, N. H. M. Zaki, A. S. Kamisan, A. I. Kamisan, M. H. Samat, A. M. M. Ali, O. H. Hassan, B. U. Haq, M. Z. A. Yahya, M. F. M. Taib
Summary: This study investigates the potential of quaternary chalcogenides semiconductors as thin film solar cell absorbers using density functional theory (DFT) and density functional theory plus Hubbard U (DFT + U) approach. The results show that by applying Hubbard U terms, the electronic band gaps can be accurately predicted, providing valuable insights for finding cost-effective new thin film solar cell materials.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Ashwani Kumar, Anuj Kumar, Mohaseen S. Tamboli, Mohd Ubaidullah, J. Jayarubi, S. K. Tripathi
Summary: In this study, lead-based perovskite solar cells are replaced by bismuth-based perovskite cells to overcome their instability and toxicity. CsBi3I10 perovskite films are fabricated using a modified drop-casting process, and the effects of post-annealing temperature on the morphological, structural, and optical properties are investigated. The photovoltaic performance of the cells without a hole transport layer is also quantitatively evaluated.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yang Gao, Shu-Ming Chen, Shuo Cao, Shang-Zhou Zhang, Philippe Djemia, Qing-Miao Hu
Summary: This study investigates the phase stability, elastic modulus, and hardness of ternary nitride Ti1-xAlxN. It is found that the hardness increases with the Al content x. The cubic B1 structure is more stable for x < about 0.75, while the hexagonal structure (B4) is more stable for x > about 0.75. The composition dependent hardness and phase decomposition contribute to the convex shaped hardness curve of Ti1-xAlxN.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Fengqi Wang, Qinyan Ye, Xulin He, Kun Luo, Xiaolong Ran, Xingping Zheng, Cheng Liao, Ru Li
Summary: This report uses rigorous calculations based on density functional theory to study the piezoelectric and elastic properties of wurtzite aluminum nitride (w-AlN) with single- and co-alloying by Hf (or Zr) and Sc. The research finds that the (HfSc)0.375Al0.625N and (ZrSc)0.375Al0.625N with stable wurtzite phase have a large piezoelectric coefficient d33 of 49.18 pC/N and 47.00 pC/N, respectively. However, the piezoelectric voltage constant g33 and electromechanical coupling constant k233 of HfAlN, ZrAlN, HfScAlN, and ZrScAlN are smaller than that of ScAlN, which is attributed to the large dielectric constant epsilon 33 of Hf (or Zr) alloying samples. Furthermore, the calculations of internal parameter u and bond angle alpha elucidate the brittle-to-ductile transformation in alloying w-AlN crystal structure. Electronic structure calculations show that the bandgap decreases almost linearly with the increase of alloying concentration, and the Hf (or Zr) alloying compounds become n-type semiconductors due to the existing high-charge states.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
S. R. Athul, K. Arun, S. Swathi, U. D. Remya, Andrea Dzubinska, Marian Reiffers, Nagalakshmi Ramamoorthi
Summary: The magnetic and magnetocaloric characteristics of Ho6FeSb2 have been studied. The compound exhibits two second-order ferromagnetic transitions, enabling hysteresis-free magnetocaloric effect across a wide temperature range. The alloy has high relative cooling power and magnetoresistance, making it suitable for hysteresis-free magnetocaloric applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Reena Sharma, Neelam Hooda, Ashima Hooda, Satish Khasa
Summary: A polycrystalline double perovskite La2CoMnO6 sample was prepared and its structural, dielectric and magnetic properties were investigated. The sample exhibited complex structures and magnetic behavior, and showed good conductivity and dielectric performance. Its multi-domain magnetic structure suggests its suitability for memory device applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Shubha Dubey, Jisha A. Abraham, Kumud Dubey, Vineet Sahu, Anchit Modi, G. Pagare, N. K. Gaur
Summary: This study investigates the optoelectronic, thermodynamic, thermoelectric, and mechanical stability properties of RhTiP Half Heusler semiconductors. The results show that RhTiP is a non-magnetic material with confirmed mechanical stability. It is found to be an indirect-bandgap semiconductor with a good Seebeck coefficient. This study suggests that RhTiP has promising applications in the thermoelectric and optoelectronic fields.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Xun Xie, Jiong-Ju Hao, Hong-Wei Yang
Summary: This work presents a multilayer film structure that uses optical resonance to prepare highly efficient and saturated red, green, and blue transmittance colors. Numerical simulations and analysis show that the structure can produce R, G, and B colors with a purity comparable to standard RGB colors, while maintaining efficient transmission efficiency and obtaining a rich variety of structural colors. Additionally, a metallic interlayer is introduced to selectively suppress resonances in the short-wavelength region, improving the purity of the red color. The study also investigates the effect of the incidence angle on color purity and transmission efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yueqiang Zhao
Summary: Solubility property is of great interest in chemical, physical, pharmaceutical, material, and environmental sciences. Understanding the intrinsic reason behind solubility behavior is a fascinating task. The theoretical relation between binary mutual solubility and liquid-liquid interfacial tension has been derived, where the partitioning of solute molecules between two coexisting liquid phases is determined by the transfer free energy per unit segment for a chain-like solute molecule expressed in terms of solute-solvent interfacial tension. This general theory of solubility is in good agreement with experimental results for binary mutual solubility and molar transfer free energy of solute molecules.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Osama K. M. Bashiar, R. E. Kroon, H. C. Swart, R. A. Harris
Summary: ZnO thin films with near-infrared emission were successfully fabricated using pulsed laser deposition under vacuum conditions, without the need for additional gases or implantation methods. The NIR emission was hypothesized to be caused by defects in the ZnO film due to high energy particle impacts on the sample surface.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
O. Stognei, A. Berezutskii, I. Anisimov, A. Deryabin
Summary: The influence of ZrOn matrix stoichiometry on the electrical and magnetoresistive properties of Fe-Zr-O nanocomposites has been studied. It was found that the magnetoresistive effect is not observed in composites with oxygen lack, while composites with oxygen excess show magnetoresistive effect and increased resistivity. Magnetoresistivity in composites with oxygen lack only appears after heat treatment. These results can be explained by the difference in the density of localized states in the oxide matrix of the composites and the ratio between two types of conductivity.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Mehmet Bayirli, Aykut Ilgaz, Orhan Zeybek
Summary: The present study aims to understand the relationship between impedance characteristics and fractal behaviors. By producing neat and carbon nanotube doped composite specimens, the researchers investigated the electrical properties and surface heteromorphology using Nyquist plots and fractal analysis.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
M. I. Khan, Saddam Hussain, Muhamad Saleem, Fatimah Mohammed Alzahrani, Muhammad Siddique, M. S. Hassan, Allah Ditta Khalid, Munawar Iqbal
Summary: The sol-gel method was used to deposit Ti-doped MAPbBr3 films on FTO-glass substrates with different doping ratios (0%, 4%, and 6%). XRD analysis confirmed the cubic structure of all films, and the 4% Ti-doped film exhibited a large grain size, low band gap energy, and high refractive index. Solar cells fabricated using the 4% Ti-doped MAPbBr3 film showed improved performance in terms of current density, open circuit voltage, fill factor, and efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
