Article
Chemistry, Physical
S. C. Rakesh Roshan, N. Yedukondalu, Rajmohan Muthaiah, Kunduru Lavanya, Pazhedath Anees, Rajaboina Rakesh Kumar, Tumu Venkatappa Rao, Lars Ehm, John B. Parise
Summary: The study investigates the microscopic origins of low thermal conductivity behavior in BaO, BaS, and MgTe, proposing factors such as high mass contrast, softening of phonon modes, and strong anharmonicity as responsible mechanisms. Tensile strain is also found to contribute to further reduction in thermal conductivity in the mentioned compounds. This comprehensive research provides insights for designing materials with (ultra)low thermal conductivity through phonon engineering even in simple crystal systems.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lulu Huang, Xiuhai Mao, Jie Li, Qian Li, Jianlei Shen, Mengmeng Liu, Chunhai Fan, Yang Tian
Summary: By designing dual-emissive gold nanoparticles with varying spikiness, the interactions between spiky nanoparticles and cells were investigated. It was found that the nanospikes regulated myosin IIA recruitment at the cell membrane, enhancing cellular uptake efficiency. Moreover, the spiky nanoparticles facilitated endocytosis dynamics. These findings provide insights into the intracellular fate of nanoparticles and the development of theranostic nanocarriers.
Article
Multidisciplinary Sciences
Shreetu Shrestha, Mingxing Li, Suji Park, Xiao Tong, Donald DiMarzio, Mircea Cotlet
Summary: This study demonstrates room temperature valley polarization in heterostructures of molybdenum disulfide and a chiral lead halide perovskite. The valley polarization is achieved through spin selective charge transfer, with the chiral perovskite acting as a spin filter. This research paves the way for practical valleytronics devices.
NATURE COMMUNICATIONS
(2023)
Article
Cell Biology
Jiexia Wen, Yumei Chang, Shanshan Huo, Wenyan Li, Heling Huang, Yunhuan Gao, Hongyu Lin, Jianlou Zhang, Yonghong Zhang, Yuzhu Zuo, Xuebin Cao, Fei Zhong
Summary: Tanshinone IIA has a strong anti-atherogenic function by inhibiting the activation of NLRP3 inflammasome, which plays a vital role in atherogenesis. The mechanism involves inhibiting NF-kappa B activation, downregulating pro-IL-1 beta and NLRP3 expression, and reducing oxLDL-induced cellular damage to prevent NLRP3 inflammasome assembly.
Article
Chemistry, Physical
Yizhe Li, Xigui Yang, Chaofan Lv, Jinxu Qin, Chuang Zhang, Zhenfeng Zhang, Xuexia Chen, Jinhao Zang, Qing Lou, Lin Dong, Chong-Xin Shan
Summary: The photoresponse performance of g-C3N4 films with high crystallinity has been investigated under high pressure for the first time. It is found that increasing pressure enhances photocurrents, mainly due to bandgap reduction. This has important implications for controlling the photoelectric performance of the material through pressure engineering.
Article
Physics, Applied
Heqi Xiong, Ruiping Li, Yingchun Cheng, Guichuan Xing, Wei Huang
Summary: The study found that applying pressure to monolayer indium selenide can change its bandgap, thereby allowing for band structure tuning and potential applications in pressure-responsive optoelectronic devices.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Jakub Lukes, Vit Kanclir, Jan Vaclavik, Radek Melich, Ulrike Fuchs, Karel Zidek
Summary: This study reports on the observation of a threefold second harmonic generation (SHG) enhancement induced by laser in silicon nitride thin films. The observed enhancement exhibits similar features to all-optical poling, while complex behavior, including SHG reduction, is observed in low-oxygen silicon oxynitride thin films. The results reveal a new mechanism of laser-induced SHG variation and provide insights for identifying this mechanism.
SCIENTIFIC REPORTS
(2023)
Article
Integrative & Complementary Medicine
Qiuwei Peng, Jian Wang, Man Han, Minghong Zhao, Kesong Li, Tianming Lu, Qiuyan Guo, Quan Jiang
Summary: Tanshinone IIA (Tan IIA) plays an important role in reducing bone destruction in rheumatoid arthritis (RA) by inhibiting osteoclast differentiation through LDHC-mediated ROS generation.
Article
Chemistry, Multidisciplinary
Tianyi Huang, Rui Wang, Selbi Nuryyeva, Shaun Tan, Jingjing Xue, Yepin Zhao, Quantan Wu, Marc H. Weber, Pei Cheng, Dong Meng, Ilhan Yavuz, K. N. Houk, Yang Yang
Summary: The superior bandgap tunability of solution-processed halide perovskite makes it a promising candidate for multi-junction photovoltaics, with the additional benefit of simplified technology transfer when optically coupling wide-gap perovskite with commercially available PVs such as silicon and CIGS. By utilizing a sequential fluoride and organic ammonium salt surface passivation strategy, the authors were able to control non-radiative energy losses and achieve high efficiencies in wide-gap perovskite solar cells, especially when stacked with commercial Si and CIGS products.
Review
Chemistry, Applied
Cairong Wang, Ge Qiu, Chen Li, Kai Sun, Zhichuan Wang, Xin Wang
Summary: Carboxylic acid compounds are important structural units that exist widely in nature, and decarboxylative reactions have great significance in synthetic chemistry due to the non-flammable, non-toxic, and easy-to-remove byproduct carbon dioxide. Heterocyclic compounds are important backbones of various biologically active molecules, making research on new synthetic tactics for heterocyclic derivatives based on decarboxylative cyclization of great interest.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Multidisciplinary Sciences
Qi Cao, Yongjiang Li, Hong Zhang, Jiabao Yang, Jian Han, Ting Xu, Shuangjie Wang, Zishuai Wang, Bingyu Gao, Junsong Zhao, Xiaoqiang Li, Xiaoyan Ma, Shaik Mohammed Zakeeruddin, Wei E. Sha, Xuanhua Li, Michael Graetzel
Summary: This study introduces a star-shaped polymer to enhance charge transport and inhibit ion migration in perovskite solar cells, leading to improved efficiency and stability. Modified devices demonstrate significant performance enhancements and excellent long-term operational stability.
Article
Physics, Applied
Mohsin Ijaz, Hao Zhang, Liye Xu, Richard J. Blaikie
Summary: In this study, plasmonic resonances on large-area nanoscale silver (Ag) gratings are experimentally investigated using angle-resolved optical absorption spectroscopy and femtosecond transient absorption spectroscopy (TAS). The experimental results measure the plasmon resonances as a function of azimuthal angles and detection angles under different polarizations. TAS reveals the non-radiative decay of plasmon resonances by transferring energy to nearby species, and numerical simulation quantifies the density of plasmonic hot electrons excited in the Ag-gratings.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Lizhong Su, Tao Hong, Dongyang Wang, Sining Wang, Bingchao Qin, Mengmeng Zhang, Xiang Gao, Cheng Chang, Li-Dong Zhao
Summary: In this study, the thermoelectric performance of n-type SnSe polycrystals was enhanced through bandgap engineering and vacancy compensation. PbTe was found to reduce the wide bandgap of SnSe, increasing carrier concentration, while extra Sn compensated for vacancies and improved carrier mobility. These strategies led to significant improvements in ZT values, demonstrating a novel approach to enhance the thermoelectric performance of wide-bandgap semiconductors.
MATERIALS TODAY PHYSICS
(2021)
Article
Integrative & Complementary Medicine
Jin-Cheng Liu, Qing-Fei Zhao, Ling Zhang, Bo-Yang Yu, Fang Li, Jun-Ping Kou
Summary: This study found that Ruscogenin (RUS) can significantly reduce myocardial injury and apoptosis caused by myocardial ischemia (MI). The protective mechanism may be related to the regulation of the interaction between myosin IIA and F-actin, restoring mitochondrial fusion and fission balance.
AMERICAN JOURNAL OF CHINESE MEDICINE
(2023)
Article
Chemistry, Physical
Mengke Li, Hongmei Yuan, Yufeng Luo, Xiaoyi Ma, Huijun Liu, Wentao Jiang, Ying Fang
Summary: Thermoelectric technology offers a promising solution to the global energy crisis by directly converting distributed heat into electricity. This study proposes a transfer learning strategy using a pre-trained neural network to accurately predict the ZT values of any thermoelectric material at any temperature. Compared to direct machine learning algorithms, the transfer learning model shows significantly improved predictive power, achieving higher Pearson correlation coefficients and lower mean absolute errors for both p-type and n-type systems.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Muhammad Waqas Iqbal, Shazia Razzaq, N. A. Noor, Sikander Aftab, Amir Afzal, Hamid Ullah, Muhammad Suleman, Ehsan Elahi
Summary: Chemical doping with Potassium Bromide (KBr) solution is shown to be an effective technique to improve the electrical properties of monolayer graphene. The study reveals that KBr doping enhances the mobility of graphene and shifts the charge neutrality point towards negative gate voltage, indicating n-type doping.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Optics
M. Junaid Iqbal Khan, Iqra Majeed, Kainat Munir, Hamid Ullah, Maazia Asghar, M. Fakhar e Alam
Summary: In this study, we investigated the effect of Os and Os-Mn/Ru co-doping on GaN. Our findings show that Os-Mn/Ru co-doping induces magnetism in GaN, whereas Os doping does not alter its non-magnetic character. These materials exhibit good absorption in the UV region and may be suitable for the fabrication of devices in the fields of photonics, optoelectronics, photovoltaics, solar cells, photodetectors, and power electronics.
Article
Physics, Multidisciplinary
M. Junaid Iqbal Khan, Mubashra Shakeel, Iqra Majeed, Abid Latif, Javed Ahmad, Hamid Ullah, M. Fakhar-e-Alam, Zartasha Mustansar, Mazia Asghar, Shaima A. M. Abdelmohsen
Summary: In this study, the structural, electronic, optical, magnetic, and thermoelectric properties of Pt doped and Pt-Cu/Au co-doped GaN were investigated using the Wien2k code. The results show that the d-states of Pt, Cu, and Au atoms actively participate in transferring electrons, leading to the magnetic character and blue shift in absorption spectrum of GaN. These materials have potential applications in high energy UV optoelectronics, spintronics, and other fields.
Article
Energy & Fuels
Muhammad Waqas Iqbal, Mumtaz Manzoor, N. A. Noor, Ibadur Rehman, Nohseen Mushahid, Sikandar Aftab, Yousef Muhammad Alanazi, Hamid Ullah, Amir Muhammad Afzal
Summary: The lead-free double-perovskite material K2AgBiX6 (X = Cl, Br) has been investigated for its potential application in visible light solar cells. The study reveals that the material exhibits good optoelectronics characteristics, with high light absorption and Seebeck coefficient, and low thermal conductivity.
Article
Chemistry, Physical
Ghulam Hussain, Mazia Asghar, Muhammad Waqas Iqbal, Hamid Ullah, Carmine Autieri
Summary: Based on first-principles calculations, this study investigates the structural stability, electronic structures, and thermal properties of monolayer XSi2N4 and its lateral and vertical heterostructures. The results show that these heterostructures are energetically and dynamically stable, and possess semiconductor properties with good heat retention ability. Therefore, they are potential candidates for nanoelectronics and thermoelectric applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Debidatta Behera, Ramesh Sharma, Hamid Ullah, Hafiza Sumaira Waheed, S. K. Mukherjee
Summary: The structural, optoelectronic, and thermoelectric properties of AAg(2)Se(2) (A = Sr, Ba) compounds were investigated using first-principles calculations. The compounds exhibit stable structure and excellent optoelectronic and thermoelectric properties, making them promising for applications in optoelectronics and thermal devices.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Energy & Fuels
Mazia Asghar, Muhammad Waqas Iqbal, Mumtaz Manzoor, Naveed Ahmad Noor, Maiza Zanib, Ramesh Sharma, Hamid Ullah, Sikandar Aftab, Tausif Zahid
Summary: Based on first-principles calculations, we investigated the optoelectronic and thermoelectric properties of double Perovskite halides Rb2AgSbX6 (X = Cl, Br). Our findings suggest that Rb2AgSbX6 (X = Cl, Br) has favorable properties due to its lower formation energy and efficient light absorption in the visible region, making it suitable for applications in renewable power devices.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
M. Junaid Iqbal Khan, Juan Liu, Abid Latif, Iqra Majeed, Hamid Ullah, Mazia Asghar, Javed Ahmad
Summary: In this study, first-principle calculations were used to investigate the properties of cobalt and Co-X (X = Fe, Mn) co-doped MoS2. The results showed that doping with Co and Co-Fe/Mn introduced magnetism into MoS2, resulting in a reduction in optical band gap. The enhanced absorption and conductivity, as well as decreased reflectivity, indicate the potential uses of these materials in optoelectronics, spintronics, magneto-optics, and photonics devices. The crossroads of MoS2 and allied materials may also explore new avenues in sensing, artificial intelligence, and miniaturization of existing technology.
JOURNAL OF MOLECULAR MODELING
(2022)
Article
Physics, Condensed Matter
Hafiza Sumaira Waheed, Mazia Asghar, Hafiz Saeed Ahmad, Tasawar Abbas, Hamid Ullah, Roshan Ali, Muhammad Junaid Iqbal Khan, Muhammad Waqas Iqbal, Young-Han Shin, Muhammad Sheraz Khan, Riadh Neffati
Summary: The optoelectronic properties and device absorption efficiencies of MoSO and MoSSe Janus monolayer were investigated using first-principles calculations. It was found that they possess a semiconducting behavior with ideal bandgaps for effective light absorption. The MoSO and MoSSe family showed the strongest absorption efficiency (90%) across the infrared to ultraviolet region of the light spectrum. They also have a suitable band edge alignment with water redox potentials. Thus, MoSO and MoSSe are efficient candidates for optoelectronic devices, photocatalysis, and solar cell applications.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Quratul Ain, Hamid Ullah, Junaid Munir, El Sayed Yousef
Summary: This study investigates the properties of MgBe2X2 (X = As, P) Zintl phases using computational predictions and first-principles calculations. The results show that these phases are stable, have semiconductor properties, and exhibit good optical and thermoelectric responses, making them potential candidates for optoelectronic and thermoelectric applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Mumtaz Manzoor, Muhammad Waqas Iqbal, Naveed Ahmad Noor, Hamid Ullah, Ramesh Sharma, Saleh S. Alarfaji
Summary: Currently, there are many studies investigating the quality of materials that can be used in solar cells and energy storage devices due to their high absorption and conductivity. This study utilized density functional theory simulations to analyze the optoelectronic and thermoelectric properties of K2AgXI6 (X = Sb, Bi) compounds, revealing their potential applications in solar cells and energy storage.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
M. Junaid Iqbal Khan, Juan Liu, Saima Batool, Abid Latif, Imran Taj, M. Waseem, Iqra Majeed, Hamid Ullah, Javed Ahmad, Zartasha Mustansar
Summary: This research investigates the structural, electronic, magnetic, and optical properties of cesium-doped and Cs-X (X = Mn, Fe) co-doped CdS materials. The results show that Cs-X (X = Mn, Fe) co-doped CdS materials exhibit magnetic properties, with significant influence from the 5p states of Cs atom and 3d states of Mn, Fe atoms on the electronic properties. Cs doping causes a blueshift in the optical absorption spectrum of CdS, while Cs-Mn/Fe co-doping causes a redshift. These materials demonstrate the ability to absorb electromagnetic radiation in the 0-7 eV energy range and possess magnetism, indicating their potential for novel optoelectronic and spintronic device fabrication.
SOLID STATE SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Shanawer Niaz, M. Aslam Khan, N. A. Noor, Hamid Ullah, R. Neffati
Summary: In this study, the physical properties of Sc-based double halide perovskites were investigated using density functional theory. The results showed that these double perovskites have potential applications in optical devices and exhibit excellent electrical characteristics.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Physics, Multidisciplinary
M. Junaid Iqbal Khan, Hafiza Saima Batool, Juan Liu, Perveen Akhtar, Abid Latif, Javed Ahmad, Imran Taj, Sana Khalid, Urva Gull, M. Waseem Akhtar, Hadeeqa Tehreem, Hamid Ullah, Muhammad Usmani
Summary: Using DFT technique, Pt/Ni doping and Pt-Ni co-doping into CeO2 were performed, and the structural, electronic, magnetic, and optical properties of CeO2 with selected dopants were studied using Wien2k code. The spin-polarized DOS showed the non-magnetic character of pure CeO2, while Pt/Ni/Pt-Ni doping introduced magnetism into CeO2 with magnetic moment values of 2.2502 mu (B), 2.5683 mu (B), and 3.9190 mu (B), respectively. The active participation of Ce 4f-, Pt 4d-, and Ni 3d-states at the Fermi level indicated remarkable improvement in the conduction process. The presence of p-d hybridization resulted in favorable electronic properties. Pt:CeO2 and Pt-Ni:CeO2 exhibited a blueshift, while Ni:CeO2 exhibited a redshift in the absorption spectrum. The proposed materials showed enhanced optical absorption, conductivity, and decreased reflectivity in the UV region. The tuning of absorption spectra and decrease in band gap suggest potential applications in photocatalytic, photonic, optoelectronics, and power electronic devices.
Article
Physics, Condensed Matter
Mazia Asghar, Hamid Ullah, Young-Han Shin, Muhammad Waqas Iqbal, Yousef Mohammed Alanazi
Summary: In this study, the electronic and magnetic properties of the 2D Janus monolayer VSeTe were investigated through first-principles calculations. It was found that the VSeTe monolayer prefers a 2H structure, exhibits semiconductor behavior with a bandgap, and possesses magnetic properties, making it suitable for applications in magnetic semiconductor devices.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(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)
