Article
Chemistry, Physical
Alexandra Apostoluk, Yao Zhu, Pierrick Gautier, Audrey Valette, Jean-Marie Bluet, Thibaut Cornier, Bruno Masenelli, Stephane Daniele
Summary: ZnO nanoparticles with a wide spectrum of visible emission are attracting more and more interest as a material for light sources and energy downshifting systems due to their intrinsic defects. However, achieving defect emission with a high luminescence quantum efficiency (PL QY) is difficult. In this study, we found that the nature of zinc precursors and alkaline hydroxide used in co-precipitation synthesis affects the emission spectra and PL QY of ZnO nanoparticles.
Article
Materials Science, Multidisciplinary
Phattranit Dumrongrojthanath, Anukorn Phuruangrat, Somchai Thongtem, Titipun Thongtem
Summary: ZnO particles doped with Cd were successfully synthesized using a precipitation method, and characterized by multiple techniques. The study found that Cd doping increased the crystallite size and photocatalytic activity of ZnO, with ZnO doped with 3 mol% Cd showing the best performance in degrading methylene blue.
Article
Physics, Applied
Nirdosh Verma, Dinesh Pathak
Summary: Zinc oxide nanopowder samples were prepared using co-precipitation method and their structural properties were studied using Rietveld refinement technique. XRD and UV spectroscopy techniques were used to characterize the samples and analyze their potential applications in various industries.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Materials Science, Multidisciplinary
M. Sangeetha Vidhya, Fuad Ameen, Turki Dawoud, R. Yuvakkumar, G. Ravi, P. Kumar, Dhayalan Velauthapillai
Summary: Nanostructured zinc oxide prepared by hydrothermal route exhibits morphology and optical properties that are significantly influenced by doping concentration. Oxygen vacancies in zinc oxide play a key role in anticancer mechanism, emitting green light.
Article
Chemistry, Inorganic & Nuclear
A. Krishnanunni, Akshayakumar Kompa, Dhananjaya Kekuda, M. S. Murari, K. Mohan Rao
Summary: This study investigates the impact of defects on the magnetic behavior of ZnO based samples, specifically Co-Sm co-doped ZnO nano powder. The results show that the prepared samples exhibit wurtzite phase with enhanced defects on doping and co-doping. The presence of defects in the samples enhances their magnetic behavior.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
A. Rezaei, E. Katoueizadeh, S. M. Zebarjad
Summary: In this study, zinc oxide nanoparticles were synthesized using aqueous solutions at ambient temperature and 70 degrees C. The synthesized nanoparticles were analyzed using various techniques, and the results showed that temperature, mixing method, and stoichiometric ratio had significant effects on the particle size and morphology. Temperature also played a role in converting precursors into a single-phase compound. Furthermore, the calcination process had a significant impact on the crystal size of the synthesized particles.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Engineering, Chemical
Abhishek Kumar, Krunal M. Gangawane
Summary: This work investigates the effect of four different precipitating agents on the structural and magnetic properties of synthesized ferromagnetic nanoparticles. The results show that NH3 in an alcohol solution as a precipitating agent exhibits higher magnetic properties but a longer response time. On the other hand, NaOH in an aqueous solution provides a shorter reaction time and lower cost, but the particle surface and magnetic characteristics are inferior.
Article
Materials Science, Multidisciplinary
Muhammad Waqas, Rabia Ghaffar, Muneeb Irshad, Mohsin Saleem, Muhammad Hanif, Abdul Ghaffar
Summary: This study investigated the effect of sintering and annealing on the morphology of zinc oxide (ZnO) and cerium-doped ZnO nanomaterials and their biocidal response. The results highlight the morphological significance of Ce-doped ZnO nanomaterials in antibacterial activity.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
V Parthasaradi, M. Kavitha, A. Sridevi, J. Jency Rubia
Summary: The study aims to synthesize pure ZnO nanoparticles, Eu-doped ZnO NPs, and Eu-La co-doped ZnO NPs using a co-precipitation technique. The synthesized nanomaterials exhibit high crystallinity and a decrease in band gap with increasing doping. Furthermore, the Eu-doped and Eu-La co-doped ZnO nanoparticles exhibit room temperature ferromagnetism, making them potential candidates for optoelectronics and spintronic devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
A. A. Ahmad, A. B. Migdadi, A. M. Alsaad, Qais M. Al-Bataineh, Ahmad Telfah
Summary: A well-prepared ZnO and (Cd-Ni) co-doped ZnO thin films were synthesized using sol-gel method, with optical, structural, and morphological characterizations performed to analyze the impact of co-doping ratio on transmittance and reflectance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Physics, Multidisciplinary
V Ganesh, I. S. Yahia, I. Loyola Poul Raj, B. Prakash, S. Vinoth, R. S. Rimal Isaac, A. Vimala Juliet
Summary: In this study, copper-doped zinc oxide nanoparticles were prepared using a cost-effective co-precipitation process. The effects of copper dopant on the crystalline structure, morphology, and optical characteristics of the nanoparticles were investigated for photocatalytic and photosensing applications.
Article
Chemistry, Physical
Barikara Shivaraj, M. C. Prabhakara, H. S. Bhojya Naik, E. Indrajith Naik, R. Viswanath, M. Shashank
Summary: Chemical co-precipitation method was used to synthesize ZnO and 3 wt% Tb doped ZnO nanoparticles. Optical, photoluminescence, electrochemical-sensing, and antibacterial properties were investigated. The hexagonal wurtzite structure was confirmed by XRD studies, and FTIR showed strong absorption and stretching vibration between the molecules. The morphology of the samples was identified by SEM and TEM micrographs, and EDXA spectroscopy was used for elemental composition analysis. The influence of Tb content on bandgap was analyzed by UV-Vis spectra, and PL study confirmed the existence of defects and band edges. Electrochemical routines and antibacterial activities of Tb-ZnO NPs were also studied.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Analytical
Yong Xia, Aifei Pan, Ya-Qiong Su, Sikai Zhao, Zhou Li, Adrian K. Davey, Libo Zhao, Roya Maboudian, Carlo Carraro
Summary: Chemiresistive CO2 sensing using well-developed ZnO material with nitrogen doping has been studied. It was found that the response to CO2 is higher in the presence of nitrogen doping and under N2 background. Density functional theory calculations revealed that nitrogen doping is responsible for the observed response. In the presence of pre-adsorbed O2, the interaction between N-doped ZnO and CO2 is hindered, resulting in limited response in air.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Materials Science, Ceramics
Suman Sharma, Mukesh Kumar Verma, Narayan Dutt Sharma, Nisha Choudhary, Sumit Singh, Devinder Singh
Summary: Rare earth doping affects the structural and magnetic properties of Ni-Co ferrite materials. The saturation magnetization of rare-earth doped ferrites is strongly dependent on the magnetic moment of the rare earth ion, while coercivity increases with the atomic number of the rare earth ion.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Hanen Letifi, Donia Dridi, Yousra Litaiem, Salah Ammar, Wissem Dimassi, Radhouane Chtourou
Summary: Highly efficient titanium doped tin dioxide photocatalysts were successfully prepared via a co-precipitation method, with 4% Ti-SnO2 demonstrating the highest photocatalytic activity. This enhancement in photocatalytic performance was attributed to the improved absorption capability and efficient separation of photogenerated electron-hole pairs.
Article
Engineering, Electrical & Electronic
Rajwali Khan, Sattam Al Otaibi, Abdulrahman. J. J. Babqi, Nasir Rahman, Mohammad Sohail, Rabbim Mixlievich Yusupov, Sherzod Shukhratovich Abdullaev, Alamzeb Khan, Shahid Iqbal, Tommaso Del Rosso, Tahir, Quaid Zaman, Aurangzeb Khan
Summary: The influence of Ce and Co co-doping on the structural, dielectric, and magnetic properties of ZnO nanoparticles was investigated. The addition of Ce and Co improved the crystallinity and maintained the preferred orientation. The dopants had no influence on the morphology of the particles but reduced their size.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Rajwali Khan, Naveed Ur Rehman, Nasir Ilyas, Nourreddine Sfina, Mohamed Barhoumi, Alamzeb Khan, Khaled Althubeiti, Sattam Al Otaibi, Shahid Iqbal, Nasir Rahman, Mohammad Sohail, Asad Ullah, Tommaso Del Rosso, Quaid Zaman, Abid Ali Khan, Sherzod Sh. Abdullaev, Aurangzeb Khan
Summary: Electronic devices with biomimetic behavior, such as electronic synapses and neurons, have led to a new era in information and humanoid robotics technologies. A nickel-doped zinc oxide (NZO)/Au-based memristor is fabricated for artificial nociceptor applications, exhibiting various nociceptive functions depending on the external stimuli. This NZO-based device produces a multifunctional nociceptor performance that is essential for applications in artificial intelligence systems.
Article
Chemistry, Applied
Shaista Ramzan, Shahnaz Rahim, Syed Tasleem Hussain, Katherine B. Holt, Jeremy Karl Cockcroft, Niaz Muhammad, Zia Ur-Rehman, Asif Nawaz, Shaukat Shujah
Summary: In this study, four new diorganotin(IV) complexes were synthesized and their structures were characterized by various techniques including FT-IR, H-1 NMR, C-13 NMR, and mass spectrometry. The results confirmed the formation of tin-oxygen and tin-nitrogen bonds during complex formation, as well as the presence of penta-coordinated structures. The interaction between the complexes and DNA was found to be intercalative in nature, and the binding ability of complex 3 with SS-DNA was the highest. The electrochemical and thermodynamic parameters were also calculated, and complex 2 showed significant antioxidant activity.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Fekhra Hedhili, Hukam Khan, Mohammad Sohail, Nasir Rahman, Rajwali Khan, Waed Alahmad, Hissah Saedoon Albaqawi, Shereen Mohammed Al-Shomar, Omar Alsalmi
Summary: This research aims to understand the potential uses of various compounds in fields such as renewable energy, electrical conductivity, optoelectronic properties, photovoltaic devices, and field effect transistors. The study focuses on the AgZF3 (Z = Sb, Bi) compounds using the FP-LAPW and DFT-based low orbital algorithm. Various properties like structure, elasticity, electrical and optical properties can be predicted. The research findings include an increase in bulk modulus value after switching Sb to Bi, revealing the stiffness characteristic of the material, as well as the anisotropy and mechanical balance of the underexplored compounds.
Article
Biochemistry & Molecular Biology
Amjad Ali Pasha, Hukam Khan, Mohammad Sohail, Nasir Rahman, Rajwali Khan, Asad Ullah, Abid Ali Khan, Aurangzeb Khan, Ryan Casini, Abed Alataway, Ahmed Z. Dewidar, Hosam O. Elansary
Summary: This study computationally examined the optical, structural, elastic, electronic, and mechanical properties of aluminum-based compounds AlRF3 (R = N, P) halide perovskites. It was found that AlNF3 and AlPF3 are structurally stable and mechanically resistant compounds. They exhibit anisotropic behavior, strong resistance to plastic strain, and possess ductile nature. AlNF3 is transparent to photons at low energy levels, while AlPF3 is somewhat opaque. These compounds have the potential to be used in making ultraviolet devices based on high frequency.
Article
Engineering, Electrical & Electronic
Mudasser Husain, Nasir Rahman, Mongi Amami, Tahir Zaman, Mohammad Sohail, Rajwali Khan, Abid Ali Khan, Saima Ahmad Shah, Aurangzeb Saeedullah, Aurangzeb H. Khan, Ali Reshak, Nora Hamad Al-Shaalan, Sarah A. Alharthi, Saif A. Alharthy, Mohammed Amin, Vineet Tirth
Summary: In this study, the structural, optoelectronic, and mechanical properties of germanium based AGeF(3) (A = Ga and In) halides Perovskites were predicted for the first time using density functional theory computational approach. The compounds were found to have good structural stability, semiconductor nature, and potential for optoelectronic applications.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Physics, Multidisciplinary
Nasir Rahman, Mudasser Husain, Mohammad Sohail, Rajwali Khan, Tahir Zaman, Riadh Neffati, Ghulam Murtaza, Aurangzeb Khan, Abid Ali Khan, Zaffar Iqbal
Summary: In this study, the structural, optoelectronic, elastic, and thermoelectric properties of NaMF3 (M = Si and Ge) ternary halide perovskite compounds were investigated using first-principle modeling within the DFT framework. The results showed that these compounds are structurally and thermodynamically stable in the cubic phase. They exhibit favorable mechanical properties and are semiconductors with direct band gaps. The compounds also demonstrate strong optical conduction and absorption coefficients, making them suitable for high-frequency UV devices and potential applications in solar cells.
Article
Physics, Multidisciplinary
Mudasser Husain, Nasir Rahman, Mohammad Sohail, Rajwali Khan, Tahir Zaman, Riadh Neffati, Ghulam Murtaza, Ahmed Azzouz-Rached, Aurangzeb Khan
Summary: This work is based on the prediction of two new materials (InXF3 where X = Be and Sr) for high energy applications. The compounds possess a cubic crystal structure with an indirect band gap. This study opens new opportunities for further exploration in this field.
Article
Crystallography
Muhammad Adil Mahmood, Rajwali Khan, Sattam Al Otaibi, Khaled Althubeiti, Sherzod Shukhratovich Abdullaev, Nasir Rahman, Mohammad Sohail, Shahid Iqbal
Summary: The impact of Co and Gd on the structural, magnetic, and dielectric properties of ZnO nanotubes synthesized by co-precipitation is studied. The results show that incorporating Co and Gd into ZnO decreases crystallinity while maintaining optimum orientation. Co and Gd doping does not affect the morphology of the nanotubes. Decreasing the frequency and concentration of Gd co-dopant leads to an increase in dielectric constant and loss values. The presence of doping results in an inversely proportional relationship between dielectric constant and ac electrical conductivity response. Co and Gd co-doped ZnO nanotubes exhibit ferromagnetic properties at 300K, with an increase in ferromagnetic response as Gd doping increases to 3% and a decrease with further Gd co-doping. Electrical conductivity of the same sample is superior to pure and low Gd doped ZnO, suggesting potential applications in spin-based electronics.
Article
Engineering, Electrical & Electronic
Mudasser Husain, Nasir Rahman, Nourreddine Sfina, Nora Hamad Al-Shaalan, Sarah Alharthi, Saif A. Alharthy, Mohammed A. Amin, Vineet Tirth, Rajwali Khan, Mohammad Sohail, Ahmed Azzouz-Rached, Shaukat Ali Khattak, Muhammad Yaqoob Khan
Summary: In the search for energy generation and storage materials, metal halide perovskites have emerged as a promising option. With their exceptional optical and electronic properties, they show great potential for various optoelectronic applications. The research findings suggest that these materials could be utilized in energy generation and storage devices.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Physics, Multidisciplinary
Mudasser Husain, Hind Albalawi, Maryam Al Huwayz, Noor alhuda Al Saqri, Rajwali Khan, Nasir Rahman
Summary: In this research, ternary non-centrosymmetric chloroperovskite compounds (ABCl3, where A = Rb, B = Be, Mg) were extensively investigated using DFT incorporated in WIEN2K code. The findings reveal that these compounds possess a cubic, non-centrosymmetric, and stable crystalline structure. The mechanical properties indicate the ductility and mechanical stability of RbBeCl3 and RbMgCl3. Electronic properties, including band structures and density of states, were examined, and RbBeCl3 was found to exhibit semiconducting behavior while RbMgCl3 was identified as an insulator. The study also explored the optical properties of these compounds, revealing potential applications in modern photovoltaic technologies within the ultraviolet range.
Article
Chemistry, Multidisciplinary
Kashif Safeen, Rehan Ullah, Akif Safeen, Muhammad Kabeer, Rajwali Khan, Hayat Ullah, Abid Zaman, Khawaja Shafique Ahmad, Muhammad Zia Ullah Shah, Hosam O. Elansary, Ihab Mohamed Moussa, Ryan Casini, Eman A. Mahmoud
Summary: This research investigates the effect of calcination temperatures on the structural phases and properties of cobalt-doped TiO2 nanoparticles. The results show that the calcination temperature affects the structural phase and properties of the nanoparticles, and cobalt doping and crystalline phase are important parameters for optimizing the photocatalytic activity of TiO2.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Mudasser Husain, Hind Albalawi, Maryam Al Huwayz, Rajwali Khan, Nasir Rahman
Summary: Using DFT method, this study investigates the properties of LaXSi (X = Pt, Pd) half-Heusler compounds. The stability of the compounds is ensured by employing the Birch-Murnaghan equation of state and negative formation energy. The elastic constants evaluation is crucial in determining the mechanical stability, while the analysis of electronic and optical properties suggests potential applications in high-frequency UV devices. The thermoelectric properties also indicate the materials' suitability as exceptional thermoelectric materials.
Article
Chemistry, Multidisciplinary
Nasir Rahman, Mudasser Husain, Vineeth Tirth, Ali Algahtani, Hassan Alqahtani, Tawfiq Al-Mughanam, Abdulaziz H. Alghtani, Rajwali Khan, Mohammad Sohail, Abid Ali Khan, Ahmed Azzouz-Rached, Aurangzeb Khan
Summary: By using first-principles techniques based on density functional theory, this study investigates the lithium-based halide perovskites LiRCl3 (where R = Be and Mg) using the WIEN2K code. The research confirms the structural stability and transparency of LiMgCl3 and LiBeCl3, suggesting their potential use in optoelectronic devices.
Article
Chemistry, Multidisciplinary
Nasir Rahman, Abdur Rauf, Mudasser Husain, Nourreddine Sfina, Vineet Tirth, Mohammad Sohail, Rajwali Khan, Ahmed Azzouz-Rached, Ghulam Murtaza, Abid Ali Khan, Shaukat Ali Khattak, Aurangzeb Khan
Summary: In this study, the optoelectronic, structural, thermoelectric, and elastic characteristics of M2LiCeF6 (M = Rb and Cs) double perovskite compounds were investigated using ab initio modeling. The compounds were found to be structurally stable and possess mechanical stability, anisotropy, and toughness. They also showed narrow band gaps and exhibited transparency in the low incident photon energy range, making them suitable for high-frequency UV devices. Furthermore, the materials exhibited high electrical conductivity, power factors, and figures of merit (ZT), making them effective thermoelectric resources.
