Article
Materials Science, Ceramics
Ying Hong, Baolong Wang, Shanshan Hu, Shuang Lu, Qi Wu, Mengmeng Fu, Chenzhang Gu, Yinzhen Wang
Summary: Zn2SnO4(ZTO)/ZIF-8 nanocomposite photocatalysts were prepared using solution method and hydrothermal method. The addition of ZIF-8 improved the photocatalytic activity of ZTO by inhibiting the recombination of photoelectron-hole pairs. The composite exhibited slightly improved adsorption performance due to the high specific surface area of ZIF-8. With 0.4 wt%ZIF-8, the ZTO nanocomposite achieved a photocatalytic activity of 75% in the removal of 20 mg/L MB dye solution after 120 min.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Ali Akhtar, Xiangfeng Chu, Shiming Liang, Yongping Dong, Lifang He, Kui Zhang
Summary: Synthesizing MoS2-Zn2SnO4 nanocomposites enhances adsorption of indoor formaldehyde, with good selectivity to formaldehyde. Therefore, the material has the potential to be a candidate for detecting formaldehyde.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Kai Huang, Tingting Hu, Yang Wang
Summary: The Novel BiVO4/Zn2SnO4 photocatalyst was prepared by a two-step hydrothermal method, with the optimal mass ratio of Zn2SnO4 to BiVO4 identified as 7wt%. The composite demonstrated significantly improved photocatalytic degradation performance, with h(+) identified as the main active substance, as confirmed through active species trapping experiments and ESR spectroscopy.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Yifang Qi, William E. Meador, Jian Xiong, Mahsa Abbaszadeh, Rooban Venkatesh K. G. Thirumala, Jared H. Delcamp, Santanu Kundu, Glake Alton Hill, Qilin Dai
Summary: In this study, Zn2SnO4 (ZTO) nanocrystals were successfully synthesized using a hydrothermal reaction method. The impact of size on the structural, optical, photocatalytic, and optoelectronic properties of ZTO nanocrystals was investigated. Doping Eu3+ ions into ZTO nanocrystals revealed size-dependent Eu doping sites with potential applications in LED phosphors. The nanocrystals with a size of 6 nm showed superior performance in photocatalytic decoloration of Rhodamine (RhB) and in detecting IR light compared to those with a size of 270 nm.
Article
Materials Science, Multidisciplinary
Somayeh Saadat Niavol, Abbas Bagheri Khatibani, Seyedeh Faezeh Hashemi Karouei, Seyede Azadeh Hejazi Juybari, Hossain Milani Moghaddam
Summary: In this study, mesoporous Zn2SnO4 nanostructures were prepared by a simple and environmentally friendly hydrothermal method. The nanostructures exhibited various morphologies and were characterized by X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and Brunauer-Emmett-Teller analysis. The selected sample showed promising gas sensing properties, including high sensitivity, fast response time, excellent selectivity, and long-term stability.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Environmental
Deasung Kim, Thanh Thao Tran, Vishwa Bhatt, Ha Trang Nguyen, Joondong Kim, Manjeet Kumar, Ju-Hyung Yun
Summary: The increasing concerns over environmental pollution caused by urbanization and modernization have led to a focus on gas sensors. This study synthesized Zn2SnO4 octahedrons using a hydrothermal method and studied the effect of synthesis conditions on their sensing performance. The Zn2SnO4 sample synthesized in 12 hours showed the best gas sensing characteristics.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Qizhi Tian, Weimin Ouyang, Yugui Wang, Yajun Ji
Summary: Al-2(WO4)(3)/Bi2WO6 heterojunctions with Z-type structure were successfully prepared by a one-step hydrothermal method. The obtained heterojunctions showed improved electrochemical and photocatalytic performance compared to pure Bi2WO6 material, with the best performance achieved at a molar ratio of Al to Bi of 2:1.
FUNCTIONAL MATERIALS LETTERS
(2022)
Article
Materials Science, Ceramics
Masoumeh Mohandesi, Mina Tavakolian, Mohammad Reza Rahimpour
Summary: In this study, a green, sustainable, and feasible method for synthesizing 5 nm NiO nanoparticles using eggplant skin as a bio-template was described. Two approaches, hydrothermal and sol-gel, were compared, and it was found that the hydrothermal method is better for synthesizing NiO bio-template nanoparticles. The obtained NiO nanoparticles were evaluated for their morphology and physical properties using various analyses, which confirmed their suitability for photocatalytic applications due to their low bandgap energy of 2.88 eV.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Konstantinos Kostelenos, Feidias Bairamis, Nikolaos Karamoschos, Lamprini Sygellou, Konstantinos S. Andrikopoulos, Ioannis Konstantinou, Dimitrios Tasis
Summary: This research presents the microwave-assisted synthesis of CdS/carbon/MoSx hybrids used as photocatalysts for degrading 4-nitrophenol. The hybrids showed variable photocatalytic activity, with the ternary composite using ascorbic acid as a precursor exhibiting excellent performance in degrading 4-nitrophenol within 45 minutes of irradiation. This suggests potential applications of such ternary hybrids in removing toxic water-soluble substances.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Materials Science, Ceramics
N. K. A. Hamed, M. K. Ahmad, N. H. H. Hairom, A. B. Faridah, M. H. Mamat, A. Mohamed, A. B. Suriani, C. F. Soon, F. I. M. Fazli, S. M. Mokhtar, M. Shimomura
Summary: This study investigates the photocatalytic degradation of methylene blue using flowerlike rutile-phase TiO2 films synthesized by a hydrothermal method. The research reveals that various parameters such as catalyst morphology, oxygen vacancy/Ti3+ surface defects, pH of the methylene blue solution, and initial concentration of the dye influence the photocatalytic activity of the TiO2 film. The presence of oxygen vacancy/Ti3+ surface defects is found to enhance the photocatalytic activity by acting as an electron trap.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Daniel Ursu, Radu Banica, Melinda Vajda, Corneliu Birtok Baneasa, Marinela Miclau
Summary: In this study, one-dimensional silver nanowires were integrated into zinc tin oxide spheres through one-step hydrothermal synthesis to enhance the photovoltaic performance of dye-sensitized solar cells. Experimental results demonstrated that the addition of silver nanowires can enhance the photoelectrochemical activity and charge injection.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Md Shahadat Hossain, Takeshi Furusawa, Masahide Sato
Summary: ZnO hollow microspheres were successfully prepared using a sucrose-derived carbon template-assisted hydrothermal method. The microspheres showed a shell composed of aggregated ZnO nanoparticles and a hollow interior after decomposition of the sucrose-derived carbon core. Both ZnO hollow microspheres and ZnO nanoparticles exhibited excellent photocatalytic activity for rhodamine blue degradation under UV light, with the hollow microspheres showing 10% higher efficiency due to their nanoporous structure, higher surface area, and easy formation of ·OH radicals.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
AR. Pandimurugan, K. Sankaranarayanan
Summary: The study successfully synthesized ZnO, SnO2 and Zn2SnO4 nanoparticles using a simple microwave assisted method. It was found that Zn2SnO4 exhibited higher antibacterial and photocatalytic activities, achieving a degradation rate of methylene blue up to 90.9%.
MATERIALS TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhengru Zhu, Haiwen Xia, Bo Ren, Songlin Han, Hong Li
Summary: A solar-driven Zn2SnO4/g-C3N4 composite photocatalyst was synthesized and characterized. The photocatalyst showed enhanced performance for norfloxacin degradation under visible light compared to Zn2SnO4 and g-C3N4. The Z-scheme migration pattern is proposed as the reason for the improved photocatalytic efficiency.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xin Li, Nan Zhang, Caixia Liu, Samira Adimi, Jingran Zhou, Dali Liu, Shengping Ruan
Summary: The ZnO/Zn2SnO4 nanocomposites synthesized via one-step hydrothermal method demonstrated excellent gas sensing properties towards formaldehyde, showing higher sensitivity, better selectivity, and lower detection limit compared with pristine Zn2SnO4 and ZnO.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Nishi Mehak, Bindu Rani, Aadil Fayaz Wani, Shakeel Ahmad Khandy, Ajay Singh Verma, Atif Mossad Ali, M. A. Sayed, Shobhna Dhiman, Kulwinder Kaur
Summary: In this study, the electronic, structural, and thermoelectric properties of newly designed layered rare-earth metal germanide halides were investigated. The materials showed promising thermoelectric performance, making them suitable candidates for energy harvesting in thermoelectric applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Devidas I. Halge, Vijaykiran N. Narwade, Nabeel M. S. Kaawash, Pooja M. Khanzode, Sohel J. Shaikh, Jagdish W. Dadge, Prashant S. Alegaonkar, Rajeshkumar S. Hyam, Kashinath A. Bogle
Summary: This study presents the design and fabrication of a high-performance blue light photodetector using an n-type cadmium sulfide (CdS) thin film and a p-type polyaniline (PANI). The photodetector demonstrates exceptional performance characteristics, including high responsivity, detectivity, and sensitivity, along with rapid response time and rectification behavior. The research represents a significant advancement in the field of high-performance photodetectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Da Hu, Jiabin Lu, Qiusheng Yan, Yingrong Luo, Ziyuan Luo
Summary: This study introduces a chemical mechanical polishing technique based on metal electrochemical corrosion for single-crystal SiC to address the environmental pollution caused by the polishing solution in chemical mechanical polishing. Wear experiments were conducted to investigate the wear properties of SiC C-surface under different grinding ball materials and solutions. The proposed mechanism of material removal in single-crystal SiC via metal electrochemical corrosion was discussed.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Lifang Mei, Long Lin, Dongbing Yan, Yu Liang, Yu Wu, Shuixuan Chen
Summary: This paper investigates the removal of CuO particles from silicon wafer surfaces using a picosecond laser. Numerical calculations and experimental research were conducted, and a thermal-stress coupled finite element model was established. The results show that as the laser energy density increases, the removal rate of CuO particles initially increases and then decreases, while the roughness of the silicon substrate decreases and then increases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Michihiro Yamada, Shuhei Kusumoto, Atsuya Yamada, Kentarou Sawano, Kohei Hamaya
Summary: In this study, we demonstrated the low-temperature growth of a Ge layer on a Co-based Heusler alloy via Sn doping, which improved the magnetic properties and spin signal.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Xiang-Long Wei, Bao-Feng Shan, Zong-Yan Zhao
Summary: This study synthesized and characterized a CuAlO2/CuGaO2 heterostructure and evaluated its photocatalytic performance. The heterostructure exhibited superior performance compared to individual CuAlO2 and CuGaO2 photocatalysts, with increased carrier concentration, enhanced redox capabilities, superior electrochemical stability, and reduced interfacial resistance. Photocatalytic experiments demonstrated the remarkable oxidation potential and notable reduction activity of the heterostructure, outperforming CuAlO2 and CuGaO2 in degradation rates and hydrogen production rates, respectively. These findings highlight the superior performance and broad applicability of the CuAlO2/CuGaO2 heterostructure in various photocatalytic reactions.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Micka Bah, Daniel Alquier, Marie Lesecq, Nicolas Defrance, Damien Valente, Thi Huong Ngo, Eric Frayssinet, Marc Portail, Jean-Claude De Jaeger, Yvon Cordier
Summary: This study investigates the AlN nucleation layer issue in GaN high frequency telecommunication and power switching systems fabricated after heteroepitaxy on Silicon or Silicon Carbide. It is shown that using 3C-SiC as an intermediate layer can significantly decrease RF propagation losses. Measurements and analyses demonstrate that dopant diffusion into the 3C-SiC pseudo-substrate is confined beneath the interface, and a slightly conductive zone is present beneath the AlN/3C-SiC interface, explaining the low propagation losses obtained for the devices. This work highlights the importance and efficiency of the 3C-SiC intermediate layer as a pseudo-substrate.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuang Wang, Lijun Wu, Zhiqing Wang, Ziyue Qian
Summary: The geometric structure and electrical properties of zigzag and armchair DWSiNT perfect tubes with different Stone-Wales defects were simulated using the SCC-DFTB method. It was found that the atomic arrangement, stability, energy gap, and charge distribution strongly depend on the type of tube. The effects of strong and weak electric fields on the tubes were also investigated, showing different impact on stability and energy gap. These findings have implications for future experimental studies.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Nanda Kumar Reddy Nallabala, Sunil Singh Kushvaha, Sambasivam Sangaraju, Venkata Krishnaiah Kummara
Summary: This study focuses on the preparation and performance of MIS-type high-k dielectric oxide-based UV photodetectors. The researchers found that the Au/Ta2O5/GaN devices prepared on Ta2O5/GaN heterojunction with post-annealing exhibited improved photoresponsivity, EQE, and rise/fall times. This improvement is attributed to the optimized band configuration of the Ta2O5/GaN heterostructure and the effect of post-annealing on photogenerated charge carriers.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Jean-Francois Michaud, Marc Portail, Daniel Alquier, Dominique Certon, Isabelle Dufour
Summary: This paper reviews the use of MEMS devices without sensitive layers in gas detection applications. These devices can measure a physical property of the gas to determine its concentration, and have the advantages of generality and high detection limits.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Kanyu Yang, Chaojie Shi, Ruizhao Tian, Haoyue Deng, Jie He, Yangyang Qi, Zhengchun Yang, Jinshi Zhao, Zhen Fan, Jun Liu
Summary: This study investigates the electrical and synaptic properties of Ag/TiO2 nanorod/FTO-based RRAM devices, focusing on the impact of different seed layer thicknesses on nanorod thickness and RRAM performance. The devices show remarkable achievements in terms of endurance, self-compliance, and resistance switching ratio. The switching mechanism is attributed to space-charge-limited conduction resulting from electron trapping in oxygen vacancy traps. The devices also maintain stable synaptic properties even after undergoing multiple cycles of long-term potentiation and depression.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Karthickraj Muthuramalingam, Wei-Chih Wang
Summary: This study presents a non-destructive approach using terahertz time-domain spectroscopy (THz-TDS) to estimate the electrical properties of semi-insulating compound semiconductors. The study successfully measures the resistivity and carrier concentration of semi-insulating Silicon Carbide (SiC) and Indium Phosphide (InP) wafers using THz-TDS in transmission mode. The simplified Drude model and the Nelder-Mead algorithm are employed to estimate the electrical properties, and the results are in accordance with the manufacturer specifications. The feasibility of non-destructive mapping of the electrical properties is demonstrated, offering a promising tomographic inspection approach for online monitoring.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Pengfei Wei, Rui Tong, Xiaofeng Liu, Yao Wei, Yongan Zhang, Xu Liu, Jian Dai, Haipeng Yin, Dongming Liu
Summary: This study investigates the influence of SiNx and SiOxNy as rear-side passivation films on the performance of PERC+ cells. SiNx film is found to have better passivation performance and resistance to aluminum paste erosion, while SiOxNy film exhibits better optical performance. By designing multi-layer SiNx/SiOxNy/SiNx stacks, the cells' efficiency and bifaciality are significantly improved.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Article
Engineering, Electrical & Electronic
Shuangting Ruan, Xiaolan Li, Wen Cui, Zhihui Zhang, Zhihui Xu, Huanqi Cao, Shougen Yin, Shishuai Sun
Summary: Integrating photosensitive electrode materials can effectively improve the low temperature tolerance and enhance energy density and power density. The surface morphology reconstruction technique can increase the active surface area and improve electrolyte contact, leading to higher specific capacity. Additionally, the electrodes demonstrate excellent photoelectric and photothermal conversion abilities, allowing the supercapacitor to maintain high energy density even at low temperatures.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)
Review
Engineering, Electrical & Electronic
Ashmalina Rahman, James Robert Jennings, Mohammad Mansoob Khan
Summary: This review provides a comprehensive overview of the synthesis and applications of nanostructured CuInS2 in photocatalytic applications. Various strategies, including the introduction of dopants, surface decoration, and heterojunction formation, have been summarized to improve the photocatalytic performance of CuInS2. However, scientific challenges such as the high carrier recombination rate limit the broad application of CuInS2.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2024)