Article
Environmental Sciences
Sunil Babu Eadi, Han Yan, P. Senthil Kumar, Yuvakkumar Rathinam, Hi-Deok Lee
Summary: In this study, the performance of IGZO-decorated ZnO films for the detection of NO2 gas was investigated by changing the IGZO deposition time. The results showed that decorating ZnO with IGZO can significantly increase the sensor response.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Qixuan Qin, Asu Li, Yizhuo Fan, Xindong Zhang
Summary: In this study, Au nanoparticle-loaded ZnO/ZnFe2O4 microspheres with a yolk-shell structure were successfully prepared. The synthesized Au-ZnO/ZnFe2O4 samples showed high gas-sensitive performance, exhibiting the highest response to 100 ppm acetone, lower operating temperature, and fast response and recovery times.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Environmental Sciences
P. Senthil Kumar, G. Padmalaya, N. Elavarasan, B. S. Sreeja
Summary: GO-ZnO is a novel nanomaterial that has attracted researchers' attention. Its intriguing physical and electrochemical properties make it widely used in electrochemical sensor applications. Understanding the structural role of GO-ZnO and its modification process is crucial for maximizing its potential.
Article
Chemistry, Multidisciplinary
Sergio Sanchez-Martin, S. M. Olaizola, E. Castano, G. G. Mandayo, I. Ayerdi
Summary: ZnO conductometric gas sensors with nanostructured by laser interference lithography exhibit improved sensitivity to NO2 at room temperature, achieved through vertical growth of ZnO grains and 2D periodic nanopatterning. This nanostructuring enhances surface defects and surface-to-volume ratio, allowing for NO2 sensing even at lower temperatures.
Article
Engineering, Electrical & Electronic
Yu-Sheng Tsai, Deng-Yi Wang, Ya-Hsuan Lin, Yu-He Zhang, Jia-Jie Jhang, Cheng-Shan Chen, Yew Chung Sermon Wu, Wen-Chang Huang, Tien-Chai Lin, Hsiang Chen, Jung Han
Summary: In this study, ZnO/InGaZnO (IGZO) match-head nanorods (NRs) were fabricated as light/gas dual sensors. The incorporation of an IGZO match-head on a ZnO NR enhanced hydrogen gas sensing and UV light detection capabilities. ZnO/IGZO-based hydrogen gas and UV light dual sensors devices are promising for future environmental monitoring due to their compact size, steady response and simple fabrication.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Shiyu Zhou, Wenjun Yan, Min Ling, Chengdu Liang
Summary: A facile solution reduction method was used to modulate the oxygen vacancies of ZnO nanosheets, resulting in enhanced hydrogen sensing properties with significantly reduced operating temperature (150 degrees C), higher response (around 38.2 for 200 ppm), lower limit of detection (55 ppb), and quick recovery speed (only 6 s). The increased molecule adsorption and narrower band gap generated by controlled oxygen vacancies contribute to the superior sensing properties. The oxygen vacancy engineering strategy of pure metal oxide semiconductor-based materials shows great potential for creating low-temperature high-response sensors.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Analytical
Tara Ghafouri, Negin Manavizadeh
Summary: This paper proposes a method for fabricating milli/microfluidic multipurpose devices using 3D printing and triboelectric nanogenerator (TENG) technologies. The liquid-solid TENG device serves as an energy harvester and sensor, with flexibility in operation modes. A millifluidic pH sensor made from ethylene vinyl acetate (EVA) and zinc oxide nanosheets is fabricated and compared to contemporary electrochemical pH sensors. The device shows high sensitivity and various desirable characteristics, making it a promising candidate for real-life and point-of-care devices.
ANALYTICA CHIMICA ACTA
(2023)
Article
Materials Science, Ceramics
M. Kumar, Mohinder Singh Chauhan, M. Shaheer Akhtar, Ahmad Umar
Summary: Nanostructured ZnO doped with different Ce precursor concentrations were prepared and tested for photocatalytic and chemical sensing performances. Blue-shift was detected in 5 mol% Ce doping, which was found to be the optimum concentration for achieving the maximum dye degradation and sensing performances. Facile redox couple Ce3+/Ce4+ improved charge separation, leading to increased catalytic and PA sensing performances.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
V. L. Patil, D. S. Dalavi, S. B. Dhavale, N. L. Tarwal, S. A. Vanalakar, A. S. Kalekar, J. H. Kim, P. S. Patil
Summary: This report focuses on the deposition of nanocrystalline aluminium doped ZnO (Al doped ZnO: AZO) samples on seeded glass substrates using a cost-effective reflux method. The doping concentration of 'Al' ions ranged from 1 to 3 vol%. The study found that the deposited AZO samples exhibited a wurtzite hexagonal crystal structure and the formation of nanorods for undoped ZnO, with a reduction in diameter and the formation of fine tips for AZO samples. The photoluminescence study confirmed the presence of oxygen vacancies and defects in the AZO samples. Furthermore, the AZO samples demonstrated excellent gas sensing performance towards NO2 gas at a temperature of 175 degrees C, with a gas sensitivity of 85% for 5 ppm NO2 gas. This work shows promise for practical applications in the gas sensor technology field, particularly for low detection limits at low operating temperatures.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Materials Science, Multidisciplinary
T. A. Taha, Rana Saad, Mohamed Zayed, Mohamed Shaban, Ashour M. M. Ahmed
Summary: ZnO nanostructures were synthesized using the SILAR strategy and the CBD method, showing different shapes depending on the deposition time. XRD analysis revealed hexagonal wurtzite structures with an increased crystallite size and reduced bandgap as the deposition time increased. The ZnO @ 12 h sensor exhibited enhanced sensitivity, higher response to CO2, and excellent selectivity compared to hydrogen and ammonia.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Yusuf Selim Ocak, Meryem Lamri Zeggar, Mustafa Fatih Genisel, Nilufer Uslu Uzun, Mohammed Salah Aida
Summary: Metal oxide nanostructures with high surface-to-volume ratios are ideal for gas sensor fabrication. By depositing ZnO thin films on vertically aligned silicon nanowires with varying etching times, sensitivity and specific reactive surface of CO2 sensors can be improved. The sensors show low response and recovery times compared to those reported in literature.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Environmental Sciences
Wenjing Wei, Feng Zhang, Yimeng Sun, Qunfeng Yue, Kai Yu, Wei Guo, Fengyu Qu
Summary: Reasonable doping is beneficial for generating defects in ZnO sensors. Through a self-sacrificing template strategy, Co-doped hZnO core-shell structures were fabricated with different defect contents, significantly enhancing the response and selectivity towards triethylamine. Particularly, 15% Co-doped hZnO exhibited the maximum response towards 50 ppm TEA at 573 K.
Article
Engineering, Environmental
Chandra Bhan, Animes Kumar Golder
Summary: In this study, hierarchical 2D vertically aligned nanostructures (VANs) of ZnO were synthesized using a bioinspired method for electrocatalytic sensing. The ZnO-VANs showed excellent performance in electrochemical sensing.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jiaqi Zhang, Jin Li
Summary: In this study, ZnO/NiO composites with oxygen vacancies were prepared and the existence of phases, morphology, and oxygen vacancies in the material were effectively proven through various testing methods. The results showed that 10% Ni doped OZN-10 exhibited the best photocatalytic activity and gas sensitivity characteristics.
Article
Chemistry, Inorganic & Nuclear
Shiyu Zhou, Jiapeng Ji, Tong Qiu, Liguang Wang, Wenbin Ni, Sheng Li, Wenjun Yan, Min Ling, Chengdu Liang
Summary: The study designed a composite material based on ZIF-8 derived ZnO, functionalized with rGO to enhance the selectivity of H-2 sensing, achieving significant results.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Kalimuthu Vijayarangamuthu, Shyama Rath
Article
Chemistry, Physical
Harneet Kaur, Sandeep Yadav, Avanish K. Srivastava, Nidhi Singh, Shyama Rath, Jorg J. Schneider, Om P. Sinha, Ritu Srivastava
Article
Materials Science, Multidisciplinary
Vijayarangamuthu Kalimuthu, Praveen Kumar, Mahesh Kumar, Shyama Rath
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2018)
Article
Instruments & Instrumentation
E. Vittone, J. Garcia-Lopez, M. Jaksi, M. C. Jimenez Ramos, A. Lohstroh, Z. Pastuovic, S. Rath, R. Siegele, N. Skukan, G. Vizkelethy, A. Simon
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2019)
Article
Materials Science, Coatings & Films
Vineeta Singh, Dattatray J. Late, Shyama Rath
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2020)
Article
Engineering, Electrical & Electronic
Rakesh Kumar Pandey, Puspashree Mishra, Janesh Kumar Kaushik, Akhilesh Pandey, R. Raman, Ksh Devarani Devi, Shyama Rath
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2020)
Article
Chemistry, Physical
Vineeta Singh, Dattatray J. Late, Anshu Goyal, Shyama Rath
Summary: The transformation process of precursor MoO3 into two-dimensional MoSe2 using Chemical Vapor Deposition method was monitored through micro-Raman spectroscopy. Different morphologies observed during deposition represent different compounds, with each morphology corresponding to specific oxide or oxyselenide phases. The stepwise selenization mechanism of MoSe2 formation was revealed through the Raman and photoluminescence spectroscopy analysis.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Condensed Matter
Gaurav Gupta, Shikha Verma, R. Nagarajan, Shyama Rath
Summary: The microstructural and optical properties of ZnMgO nanopowders synthesized by a ball-milling technique were investigated in this study. It was found that the wurtzite phase of the ZnO host is preserved up to a Mg incorporation of x = 0.10. Structural refinement of the X-ray diffraction patterns revealed compositional and structural disorder leading to a non-linear decrease in lattice constant c with composition x.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Nanoscience & Nanotechnology
Vineeta Singh, Shyama Rath
Summary: The combination of manual grinding and sonication in the exfoliation process significantly improves the light emission properties of MoS2 nanosheets. The grinding aids in achieving ultrathin nanosheets and reducing the influence of solvent degradation, resulting in enhanced excitonic emission in MoS2. This study presents an easy and reliable approach to enhance the optical emission of two-dimensional MoS2.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Nisha Bala, Gaurav Gupta, Arijit Mitra, Shyama Rath
Summary: The annealing atmosphere (air and oxygen) and temperature can affect the microstructural and magnetic properties of sol-gel synthesized NiO nanoparticles, leading to changes in particle size, lattice constant, and bond length. Air annealing results in larger particle size variations compared to oxygen annealing. The magnetic properties can be extracted from the law of approach to saturation fit of the magnetic hysteresis curves, with the observed two-magnon mode in the Raman spectrum correlating with the antiferromagnetic/ferromagnetic transition.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Rakesh Kumar Pandey, Puspashree Mishra, Akhilesh Pandey, Satish Kumar, Anshu Goel, Shyama Rath
Summary: Epitaxial growth of GaSb on semi-insulating GaAs (001) substrates using molecular beam epitaxy was investigated. The effects of varying ion energy and fluence of Si ion implantation on the structure, morphology, composition, and electrical characteristics of the GaSb epilayers were studied. Post-implantation annealing was found to recover the damage, and various characterization techniques were used to analyze the properties of the epitaxial layers.
Article
Physics, Applied
Vineeta Singh, V. G. Sathe, Shyama Rath
Summary: This work presents Raman spectroscopic protocols to determine various material parameters of two-dimensional MoSe2 films, including layer thickness, layer-dependent thermal conductivity, interlayer interactions, and anharmonicity. The Davydov splitting observed in the Raman mode provides a method for estimating the number of layers. The findings are important for the applications of 2D MoSe2 in low power electronic, optoelectronic, and thermoelectric devices.
APPLIED PHYSICS LETTERS
(2023)
Proceedings Paper
Physics, Condensed Matter
Vineeta Singh, Dattatray J. Late, Shyama Rath
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
(2020)
Proceedings Paper
Physics, Condensed Matter
Nisha Bala, Shyama Rath
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
(2020)
Article
Materials Science, Multidisciplinary
Nisha Bala, H. K. Singh, Shikha Verma, Shyama Rath
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
