Article
Engineering, Electrical & Electronic
Shivangi S. Patel, Poornima Sengunthar, Nisha Thankachen, U. S. Joshi
Summary: A simple and reproducible method for producing high-quality zinc oxide nanorods (ZnO-NRs) was investigated. The growth process of hexagonal ZnO-NRs with c-axis orientation was optimized to study their optoelectronic properties. The results show that the growth temperature controls the surface density of ZnO-NRs, while the length is less affected. The ZnO-NRs exhibit high photosensitivity and have potential applications in optoelectronics and UV photo-detectors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Analytical
Jinyu Huang, Hao Liang, Jiexiong Ye, Dongting Jiang, Yiling Sun, Xuejin Li, Youfu Geng, Jiaqi Wang, Zhengfang Qian, Yu Du
Summary: Au-loaded ZnO sensors were successfully prepared via seed-assisted solvothermal methods, showing excellent performance in detecting HCHO with significantly improved detection limit and response to HCHO.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Wu Yang, Wang Yang, Liubing Dong, Guangjie Shao, Guoxiu Wang, Xinwen Peng
Summary: Na metal is considered as a potential anode material for next-generation batteries, but its practical applications are limited due to dendrite growth and volume changes. In this study, a 3D Cu foam skeleton with hierarchical ZnO nanorod arrays was developed as a stable host for dendrite-free Na metal anodes. The sodiophilic ZnO nanorod arrays provided abundant nucleation sites for Na, resulting in homogeneous nucleation and uniform growth on the electrode, leading to dendrite-free morphology and excellent cycling stability.
Article
Optics
Somdatta Paul, Jenifar Sultana, Nayan Ranjan Saha, Goutam K. Dalapati, Anupam Karmakar, Sanatan Chattopadhyay
Summary: In this study, n-ZnO nanowires were grown on p-Si substrate using the CBD technique, and the influence of annealing the ZnO seed layer at different temperatures was investigated. It was found that nanowires grown on seeds annealed at 400 degrees C exhibited superior performance.
Article
Chemistry, Physical
U. Chalapathi, B. Purushotham Reddy, T. V. M. Sreekanth, Si-Hyun Park
Summary: Bi2S3 nanorod films were successfully synthesized on ITO-coated glass substrates through chemical bath deposition and annealing in a sulfur atmosphere. The annealing temperature and crystallinity were found to significantly affect the performance of the films.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Lamia Al-Farsi, Tewfik M. Souier, Muna Al-Hinai, Myo T. Z. Myint, Htet H. Kyaw, Hisham M. Widatallah, Mohammed Al-Abri
Summary: The low-temperature microwave-assisted hydrothermal method was used to successfully grow pure and Al-doped ZnO nanorod arrays on glass substrates. The effects of doping and pH on the structural and optical properties of the samples were investigated, and a growth mechanism considering both the pH and Al-doping was proposed. Tuning the solution pH is crucial for growing well-aligned, high-quality nanorod arrays with enhanced optical absorption in the visible range. The production of these arrays would broaden the potential applications of ZnO and AZO nanorods.
Article
Chemistry, Multidisciplinary
Ning Chen, Pengwei Yu, Kun Guo, Xing Lu
Summary: This study presents a simple method using rubrene as a structure-directing agent to transform 2D C-60 microsheets into highly ordered nanorod arrays. The results suggest that the intermolecular charge-transfer interactions between rubrene and C-60 enable the reassembly of dissolved C-60 into ordered nanorod arrays. The aligned structures and charge-transfer interactions contribute to a 31.2% improvement in photocurrent density of the nanorod arrays in the UV region compared to randomly oriented counterparts.
Article
Materials Science, Multidisciplinary
Khurshaid Ahmad Malik, Javied Hamid Malik, Aadil Ahmad Bhat, Insaaf Assadullah, Radha Tomar
Summary: The Gd-doped ZnO nanostructures synthesized through the hydrothermal route exhibit good optical properties, enhanced photoluminescence activity, and can be applied in various fields such as sensors, UV-Lasers, phosphors, LEDs, and luminescent biolabels. The enhancement in luminescent property is attributed to an increase in crystallinity, complex defects, and electron-hole pair recombination rate.
Article
Engineering, Electrical & Electronic
T. A. Abdel-Baset, M. Abdel-Hafiez
Summary: Zn1-xRxO materials were synthesized using co-precipitation synthesis technique, with various R ions impacting the crystal structure and magnetism. Introduction of Cr, Mn, Fe, and Mg into ZnO induced magnetic moments without significant distortion in the crystal structure morphology, with Mn showing more even distribution compared to Cr and Fe.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Ceramics
Hua-Liang Yu, Li-Qin Liu, Ying-Wu Zhou, Xiao-Ling Xue, Xiao-Hong Yuan, Yao-Guo Shen, Zhi-Qun Liu, Hua-Min Chen, Chun-Lei Huang
Summary: Fabric-based nano semiconductor photocatalysts have attracted much attention recently. In this study, Ag2O/ZnO nanorod (NR)/Al-ZnO p-type/high resistivity/n-type (P-HR-N) heterojunction arrays were used to modify polyester fibers. The Al-ZnO seed layer was sputtered on the fibers and Al doping was employed to change the work function (WF) of the ZnO film. The resulting P-HR-N heterojunction sample showed enhanced photocatalytic performance due to the high and widened built-in electric field (BEF) in the multilayer film.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Guy L. Kabongo, Gugu H. Mhlongo, Mokhotjwa S. Dhlamini
Summary: The research successfully synthesized ZnO nanostructures doped with Holmium, observing changes in morphology and luminescence properties. Reduced surface defects were found in the doped samples through XPS analysis, and enhanced room temperature ferromagnetism correlated with UV-VIS transmittance results was detected in Ho3+-doped ZnO samples.
Article
Nanoscience & Nanotechnology
Sihun Lee, Dongwan Kim, Jae-Young Leem
Summary: Zinc oxide thin films were annealed using a thermal dissipation annealing (TDA) method, resulting in the formation of nanosheet structures and enhanced near-band-edge emission intensities, showcasing improved photoresponse properties.
SCIENCE OF ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Abderrahmane Hamdi, Ahmad Hamieh, Mervat Alamri, Karim Dogheche, M. M. Saj Mohan, Rachel Desfeux, Denis Remiens, Elhadj Dogheche
Summary: In this study, a piezoelectric structure based on ZnO nanowires was successfully fabricated using a hydrothermal method. The effect of various parameters on the structure and performance of the nanowires was investigated. The results showed the presence of different impurity phases during the fabrication process and revealed the piezoelectric characteristics of the ZnO nanowires.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
M. Y. A. Yagoub, H. C. Swart, E. Coetsee
Summary: The impact of calcined temperature on the structural, surface, and luminescent properties of SrF2:Eu thin film was examined, suggesting that Eu could serve as a good sensitizer for other lanthanide ions at low temperature treatments.
Article
Engineering, Electrical & Electronic
Muhammad Rafi, G. Uzma, Muhammad Arfan, Rashad Rashid, Zahoor Ahmad, Muhammad Nadeem
Summary: Low-temperature ZnO was synthesized using a single-step composite hydroxide-mediated (CHM) technique. The prepared sample was characterized and confirmed to have an average crystallite size of around 15 nm by X-ray diffraction (XRD). Field emission scanning electron microscopy (FE-SEM) results showed uniform spherical shape and narrow size distribution. The dielectric behavior revealed high dielectric constant (epsilon') and low dielectric loss, making ZnO a suitable material for practical applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)