Article
Chemistry, Multidisciplinary
Grzegorz Wisz, Paulina Sawicka-Chudy, Maciej Sibinski, Dariusz Ploch, Mariusz Bester, Marian Cholewa, Janusz Wozny, Rostyslav Yavorskyi, Lyubomyr Nykyruy, Marta Ruszala
Summary: In this study, titanium dioxide/copper oxide thin-film solar cells were prepared using the reactive direct-current magnetron sputtering technique. The influence of the deposition time of the top Cu contact layer on the structural and electrical properties of photovoltaic devices was analyzed. The structural and morphological characterization of the TiO2/CuO/Cu2O solar cells was fully studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and current-voltage (I-V) characteristics.
Article
Crystallography
He Gao, Shijian Wang, Da Xu, Xueshen Wang, Qing Zhong, Yuan Zhong, Jinjin Li, Wenhui Cao
Summary: In this study, a comprehensive analysis was conducted on the properties of DC magnetron sputtered Nb films fabricated with constant power at the National Institute of Metrology (China). The results showed that the stress and other parameters of the films can maintain a relatively stable state under constant power and Ar pressure.
Article
Materials Science, Ceramics
Antia Villamayor, Thomas Pomone, Sergio Perero, Monica Ferraris, Victoria Laura Barrio, Eva G-Berasategui, Peter Kelly
Summary: High photocatalytic activity layers were obtained by combining a TiO2 nanostructured coating support with NiO layers synthesized by direct current (DC) magnetron sputtering. The TiO2 crystallinity was improved through the optimization of sputtering process parameters. The formation of a p-n heterojunction between the TiO2 and NiO layers significantly enhanced the degradation rates of methylene blue under UV light.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
Haonan Li, Yuechan Li, Xiuxiu Li, An Xie, Dongya Sun, Yi Wang
Summary: This paper investigated the microstructure and electrochromic properties of nickel oxide films deposited on ITO-coated glass substrates at different sputtering pressures, finding that the films showed the best surface morphology and outstanding electrochromic performances at 2.4 Pa.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Coatings & Films
M. Shandrikov, A. S. Bugaev, V. Gushenets, E. M. Oks, K. P. Savkin, A. V. Vizir
Summary: The study focused on tungsten disilicide film deposition using planar magnetron sputtering at low operating gas pressure. Factors such as substrate temperature, distance from the magnetron, ion current density distribution, and operating pressure were investigated for their effects on film properties.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Chatpawee Hom-on, Napat Triroj, Mati Horprathum, Tossaporn Lertvanithphol, Chanunthorn Chananonnawathorn, Sakson Limwichean, Noppadon Nuntawong, Prayoon Songsiriritthigul, Hideki Nakajima, Annop Klamchuen, Papot Jaroenapibal
Summary: Alumina thin films prepared by pulsed DC reactive magnetron sputtering at different operating pressures exhibited hydrolysis reactions in DI water. The corrosion process involved the presence of hydroxide-containing functional groups on the film surfaces, with increasing porosity at higher operating pressures.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Jae Hyeon Lee, Wangu Kang, Hong Keun Chung, Seong Keun Kim, Jeong Hwan Han
Summary: Researchers successfully controlled the growth of MoO2 films by manipulating process pressure and oxygen-to-argon ratio. The resistivity of MoO2 films was reduced by rapid thermal annealing, and a high-k rutile TiO2 with high dielectric constant was formed in-situ using the phase-controlled MoO2 electrode. This study contributes to improving the performance of dynamic random-access memory capacitors.
Article
Materials Science, Multidisciplinary
G. Wisz, P. Sawicka-Chudy, A. Wal, P. Potera, M. Bester, D. Ploch, M. Sibinski, M. Cholewa, M. Ruszala
Summary: TiO2:ZnO/CuO thin-film solar cells were manufactured using reactive direct-current magnetron sputtering. For the first time, the TiO2:ZnO layers were used as an emitter in TiO2:ZnO/CuO solar cells. The structural and morphological characterization of the solar cells was studied using physical methods of investigation, and the photovoltaic behavior and optical properties were analyzed.
APPLIED MATERIALS TODAY
(2022)
Article
Physics, Condensed Matter
Huizhong Ma, Yunlong Chen, Na Li, Cong Tan, Yan Rong, Hongye Chen, Jia Jia, Lan Zhang
Summary: In this study, WO3 films were prepared on flexible indium tin oxide/polyethylene terephthalate substrates through DC magnetron sputtering at approximately 40 degrees C, and the effects of sputtering pressure on the microstructure, morphology, and electrochromic properties of the films were investigated. The results showed that the optimal values of thickness, surface roughness, and grain size for excellent electrochromic properties of the WO3 films were achieved at 2.0 Pa sputtering pressure. The films exhibited high optical modulation amplitude, fast coloring and bleaching response times, and low electrochemical impedance.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Wei Wu, Yongliang Tang, Bo Li, Xia Xiang, Chunming Liu, Xiaotao Zu
Summary: PbSe nanocrystalline films were prepared using magnetron sputtering with different parameters, showing improved crystallization quality and Pb/Se atomic ratio with increasing sputtering power and deposition time. The morphology of PbSe particles changed with deposition time, affecting the optical band gap and luminescence performance. Adjusting sputtering power and deposition time can optimize the properties of PbSe films.
Article
Chemistry, Physical
Waleed Ahmad, Eunseuk Park, Heehyeon Lee, Jin Young Kim, Byoung Chan Kim, Jongsoo Jurng, Youngtak Oh
Summary: Synthesizing defective anatase TiO2 through chemical vapor condensation and impregnating with Pt resulted in a Pt/CVC-TiO2 catalyst with high efficiency in removing HCHO at room temperature, demonstrating good stability over time. The study highlighted the synergistic relationship between oxygen vacancies in the TiO2 support and the resulting HCHO oxidation functionality.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Jago Txintxurreta, Eva G-Berasategui, Rocio Ortiz, Oihane Hernandez, Lucia Mendizabal, Javier Barriga
Summary: The study successfully correlated the properties of ITO layers deposited at low temperature with magnetron sputtering process parameters, finding that oxygen flow control influences the properties of the layer. High quality crystalline layers were obtained with an oxygen flow between 3-4 sccm. The optimized conditions were successfully applied for manufacturing transparent ITO heaters.
Article
Materials Science, Coatings & Films
Abdelhakim Bouissil, Sofiane Achache, Djallel Eddine Touaibia, Benoit Panicaud, Mohammad Arab Pour Yazdi, Frederic Sanchette, Mohamed El Garah
Summary: In recent decades, refractory high entropy thin films have gained more attention for their superior properties at high temperatures. These materials not only exhibit thermal stability, but also possess good mechanical properties, which is interesting in comparison to conventional alloys. Deposition of TiTaZrHfW(-N) films is carried out using reactive magnetron sputtering in different argon/nitrogen atmospheres. Optical emission spectroscopy is used to analyze the target poisoning conditions and optimize the deposition parameters. XRD analyses reveal a phase transition from amorphous to B1(NaCl) single phased films upon nitrogen addition. Except for an RN of 9%, all nitrides exhibit an out-of-plane {111} preferential orientation, which changes to {200} for RN = 9%. Morphology of the films changes from compact to columnar when the nitrogen ratio exceeds 5%. The hardness and Young's modulus show evolution with maximum values of 29 GPa and 257 GPa for RN = 9% respectively. All nitrides demonstrate good thermal stability under vacuum at 800 degrees C for 3 hours, compared to nitrogen-free metallic film which undergo phase transition. Nitrides exhibit improved oxidation resistance compared to metallic film.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Roberto Villarroel, Dario Zambrano-Mera, Rodrigo Espinoza-Gonzalez, Katherine Paredes-Gil, Stefano Pantaleone, Luis Ballesteros, Gerko Oskam, Jose A. Garcia-Merino, Samuel A. Hevia, Guillermo Gonzalez-Moraga
Summary: This study investigated the hydrogenation process and photoactivity improvement of anatase TiO2 thin films produced by direct-current reactive magnetron sputtering. The structural changes and enhanced photoactivity were found to be related to the formation of defects at the surface of the hydrogenated films.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Grzegorz Wisz, Paulina Sawicka-Chudy, Andrzej Wal, Maciej Sibinski, Piotr Potera, Rostyslaw Yavorskyi, Lyubomyr Nykyruy, Dariusz Ploch, Mariusz Bester, Marian Cholewa, Olena M. Chernikova
Summary: The problem of copper diffusion in semiconductor devices has been known for several decades. The influence of copper diffusion on the structure and properties of thin-film solar cells based on copper, zinc, and titanium oxides was investigated. The effects on current-voltage characteristics, power-voltage characteristics, and optical properties were studied.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Ceramics
Arvind Kumar, Ashwani Kumar, Shekhar Tyagi, Ramesh Chandra, Davinder Kaur
Summary: This study investigates the in-situ growth of nanoflakes structure in Bi0.9La0.1Fe0.5Mn0.5O3 (BLFMO) thin films. The study demonstrates that the use of a LNO buffer layer allows for controlled growth of BLFMO thin films with a specific crystal structure. The compact and densely packed nanoflake structures in the BLFMO thin film samples are confirmed by surface morphological investigations. The study also explores the leakage current behavior and tunability of BLFMO thin films, presenting valuable insights for the fabrication of thin film based ferroelectric memory devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Aditya Yadav, Anuj Sharma, Vishal Baloria, Preetam Singh, Govind Gupta
Summary: This study reports the growth of nanostructured tungsten oxide (WO3) thin film on SiO2 substrate under controlled oxidation conditions for NO sensing. The fabricated sensor demonstrates high selectivity, stability, and faster response/recovery time, with an ultra-high response for 1 ppm NO concentration at 250 degrees C. The ultra-high response is attributed to the high specific surface area and effective gas diffusion ability of the sensor.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Kumar Kaushlendra, Pradeep Kumar, Diksha Arora, Bhanu Ranjan, Davinder Kaur
Summary: This article presents a Cu/MoS2/NiMnIn memory structure for flexible electronics, and investigates the resistive switching characteristics. Two different devices were fabricated, one without sulfur vacancies and one with sulfur vacancies in the MoS2 thin film. The memory structure showed stable resistive switching behavior, good endurance cycles and data retention capability. Furthermore, the external temperature and magnetic field were found to affect the SET voltage and enhance the data storage capability of the device.
CERAMICS INTERNATIONAL
(2023)
Article
Energy & Fuels
Krishan Kumar, Reena Yadav, Sarita Devi, Preetam Singh, Sudhir Husale, Sachin Tyagi, Davinder Kaur
Summary: The present study proposes two effective routes to enhance the response time and detection range of the n-MoS2/p-CuO heterojunction. Firstly, by inserting an insulating AlN layer between MoS2 and CuO, the traditional p-n junction transforms into a Semiconductor-Insulator-Semiconductor (SIS) structure, achieving superior carrier tunneling mechanism. Secondly, the detection range is extended to the UV region by adding MoS2 quantum dots (QDs) on the surface of MoS2 layer. The results demonstrate that the n-MoS2/AlN/p-CuO (SIS) heterojunction with MoS2 QDs has great potential for next-generation ultrafast optoelectronics applications.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Physics, Condensed Matter
Debashrita Mahana, Amit Kumar Mauraya, Preetam Singh, Senthil Kumar Muthusamy
Summary: Understanding the conversion process of Cu thin films into copper oxide is important for environmental stability and preparation of copper oxide thin films. This study investigates the evolution of copper oxides through thermal oxidation of Cu films deposited using different processes. The oxidation of deposited films results in the complete conversion of Cu to Cu2O at 300°C and Cu2O to CuO at 400°C. The CuO films exhibit an optical band gap of approximately 1.8 eV. It is observed that sputtered Cu films oxidize faster than evaporated films.
SOLID STATE COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Pargam Vashishtha, Pukhraj Prajapat, Anuj Sharma, Preetam Singh, Sumeet Walia, Govind Gupta
Summary: This study introduces a unique coco palm-like MoS2/GaN heterojunction-based self-powered photodetector that operates in the broadband spectral range and exhibits high responsivity at both room temperature and high operating temperatures. The device also has low-light detection abilities and opens up possibilities for monitoring optical radiations in various industrial processes.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Physics, Applied
Pradeep Kumar, Akhilesh Pandey, Shankar Dutta, Davinder Kaur
Summary: Functional flexible piezo-resonators have been developed for designing high-frequency wearable devices. It was found that resonators fabricated over magnetostrictive substrates have higher tunability and sensitivity.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Diksha Arora, Pradeep Kumar, Shalini Singh, Ankur Goswami, Davinder Kaur
Summary: This article reports on a new type of flexible multiferroic heterostructure with enhanced magnetoelectric (ME) effect and zero-biased ME effect. This heterostructure is flexible, cost-effective, temperature-sensitive, and exhibits significant ME output. It has promising technological developments in wearable magnetic field sensing, nonvolatile memory, soft robotics, and portable energy harvesters.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Stuti Srivastava, Charu Dwivedi, Aditya Yadav, Ashwani Kumar, Govind Gupta, Preetam Singh
Summary: This study presents the H2S gas sensing results of Pd-decorated NiO thin films. The results show that Pd catalyst enhances the sensing capability of NiO films towards H2S gas, with high response, low optimum operating temperature, fast response/recovery time, low detection concentration, good stability, and high selectivity.
Article
Materials Science, Multidisciplinary
Stuti Srivastava, Amit Kumar Gangwar, Ashwani Kumar, Govind Gupta, Preetam Singh
Summary: We investigated the H2S gas sensing performance of nanocrystalline NiO thin films sputtered on an alumina substrate by RF magnetron sputtering. The films exhibited a granular morphology and hydrophobic nature (-123.5 degrees contact angle). Oxygen or nickel vacancies/defects were observed based on the PL spectrum and confirmed by XPS measurements. The NiO thin films showed high sensitivity, selectivity, and stability towards H2S gas, with a detection limit of 135 ppb and a maximum sensor response (Rg/Ra) of -28.8 for 200 ppm H2S gas at 400 degrees C.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Energy & Fuels
Shweta Tomer, Meenakshi Devi, Abhishek Kumar, Shubha Laxmi, Subhashree Satapathy, Kamlesh Kumar Maurya, Preetam Singh, Prathap Pathi, Vandana
Summary: Excellent silicon surface passivation is achieved by atomic layer deposition (ALD) grown hafnium oxide (HfOx) films on silicon surfaces (both n-type and p-type). The study suggests that the film thickness of the HfOx thin films plays a crucial role in the silicon surface passivation, with a minimum thickness of approximately 2 nm required for effective passivation. The best results are obtained for hydrogen-annealed, similar to 8.5-nm-thin HfOx films, which achieve a low surface recombination velocity (SRV) and high effective minority carrier lifetime (tau(eff)).
IEEE JOURNAL OF PHOTOVOLTAICS
(2023)
Article
Nanoscience & Nanotechnology
Krishan Kumar, Reena Yadav, Sarita Devi, Preetam Singh, Sudhir Husale, Sachin Tyagi, Davinder Kaur
Summary: The present study investigates the photo-response of a hybrid dimensional nanoscale heterostructure fabricated on a flexible substrate. The results show that the flexible heterostructure has a significant response to UV to NIR wavelengths, even in the self-powered mode, and has fast response times.
ACS APPLIED NANO MATERIALS
(2023)
Article
Physics, Condensed Matter
Rahul Godiwal, Amit Kumar Gangwar, Ajay Kumar Verma, Pargam Vashishtha, Ashwani Kumar, Vipin Chawla, Govind Gupta, Preetam Singh
Summary: We report on the efficient CO gas sensing application of single-step grown ZnO nanocandles without adding any catalyst. A simple, scalable, and cost-effective thermal evaporation technique was employed for the growth of ZnO nanostructures on alumina substrate at 600 degrees C. The shape and size of the ZnO nanostructures were strongly influenced by the oxygen ambient. The CO gas sensing performance of the synthesized samples was analyzed, and the nanocandles showed the highest sensor response and shortest response/recovery time.
MICRO AND NANOSTRUCTURES
(2023)
Article
Physics, Condensed Matter
Stuti Srivastava, Amit Kumar Gangwar, Ashwani Kumar, Govind Gupta, Preetam Singh
Summary: In this study, room temperature reactive magnetron sputtered NiO thin films were prepared to detect H2S gas. The influence of O2/Ar gas ratio on the sensing performance was investigated, and it was found that the NiO film prepared at 20% O2/Ar ratio exhibited highly improved response rate and response time, showing potential for low ppm H2S gas detection.
MICRO AND NANOSTRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Animesh Pandey, Sanjay Sharma, Amit Kumar Gangwar, Mandeep Kaur, Preetam Singh, Sudhir Husale
Summary: This study reports the fabrication of a flexible NIR photodetector using Bi2Te3 thin film and investigates the strain effects on the photocurrent. The results show that these flexible devices exhibit high stability and ultra-high photoresponsivity under various bending conditions.
JOURNAL OF MATERIALS CHEMISTRY C
(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)
