Article
Environmental Sciences
Vempuluru Navakoteswara Rao, Pasupuleti Kedhareswara Sairam, Moon-Deock Kim, Mashallah Rezakazemi, Tejraj M. Aminabhavi, Chi Won Ahn, Jun-Mo Yang
Summary: In order to reduce environmental pollution and carbon-based gas emissions, photocatalytic hydrogen production and sensing applications at ambient temperature are crucial. This research focuses on developing new 0D/1D materials based on TiO2 nanoparticles grown onto CdS hetersturctured nanorods through a two-stage synthesis process. The optimized nanohybrid showed excellent stability and a high photocatalytic hydrogen production rate. Furthermore, the nanomaterial exhibited superior gas sensing performance for NO2 detection at room temperature, with increased sensitivity when activated by UV light. Overall, the 1D/0D CdS@TiO2 material proved to be efficient for both hydrogen production and gas detection.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Applied
Mun Kyoung Kim, Woo Hyeong Sim, Miri Choi, Hyungseob Lim, Youngkook Kwon, Hyung Mo Jeong
Summary: The study introduces an effective electrochemical lithiation method for the synthesis of lithium-intercalated TiO2 nanoparticles, improving their photocatalytic hydrogen production performance. The electrochemical lithiation of TiO2 leads to a partial reduction of Ti ions in the crystal lattices, introducing additional energy states and enhancing the optical properties. As a result, Li-intercalated TiO2 NPs exhibit significantly higher hydrogen generation activity under both UV and visible light exposure compared to commercial TiO2 NPs (P25).
Review
Environmental Sciences
Zhigang Li, Kexin Li, Pinru Du, Mohammad Mehmandoust, Fatemeh Karimi, Nevin Erk
Summary: The article emphasizes the importance of converting solar energy into environmentally friendly and cost-effective technologies like water splitting, and discusses the application of carbon-based materials in photocatalytic reactions and methods to enhance their photocatalytic activity.
Article
Chemistry, Multidisciplinary
Sajjad Keshipour, Shima Mohammad-Alizadeh, Mohammad Hossein Razeghi
Summary: The use of a hybrid catalyst involving CuPc supported on GO and TiO2 for hydrogen production under visible light has shown significantly higher efficiency in generating hydrogen, with enhancements of 103% and 39% compared to traditional catalysts.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Nobutaka Yoshimura, Atsushi Kobayashi, Tomoki Kondo, Ryu Abe, Masaki Yoshida, Masako Kato
Summary: The combination of Ru-dye double layering and Pt cocatalyst intercalation to layered niobate semiconductor effectively suppresses back electron transfers at interfaces, leading to efficient photocatalytic hydrogen production. Double nano-architectures controlling the surfaces of the semiconductor and cocatalyst demonstrate great potential for photo-induced charge separation at the solid-solution interface, expanding the possibilities of layered semiconductor materials toward Z-scheme water splitting.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Qi Yu, Zhang Fuxiang
Summary: This article reviews the basic concepts, testing methods, types of photocatalytic reactions, and efficiency measurement techniques in the field of photocatalytic water splitting to produce hydrogen. It introduces the development of photocatalytic materials and summarizes the key research progresses in light absorption, charge separation, and surface catalytic reactions. Strategies for improving charge separation and promoting surface catalysis are discussed. The research progress in one-step and two-step photo-excitation systems for photocatalytic overall water splitting is summarized. The challenges and potential development directions of photocatalytic water splitting are analyzed and prospectively discussed.
ACTA CHIMICA SINICA
(2022)
Review
Environmental Sciences
Vivek Dhiman, Sandeep Singh, Varsha Srivastava, Sangeeta Garg, Amit D. Saran
Summary: In response to the global increase in energy demand, researchers have been investigating alternative green fuels to replace conventional fossil fuels. The demand for hydrogen is expected to grow by 4-5% in the next 5 years. Different production technologies are used to obtain high yields of hydrogen, with 96% currently produced by conventional methods and the remaining 4% produced by electrolysis of water. Photo-electrochemical (PEC) water splitting is a promising pathway for solar-to-hydrogen conversion, and recent advancements in photocatalysts have been highlighted in this article.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Applied
Kamil Czelej, Juan Carlos Colmenares, Katarzyna Jablczynska, Karol Cwieka, Lukasz Werner, Leon Gradon
Summary: This review summarizes the recent progress in plasmonic thermophotocatalysis, with a focus on sustainable hydrogen production. It discusses a wide range of topics including plasmon-related phenomena, plasmonic nanostructures, and the potential implementation of continuous-flow reactors for hydrogen production. Remaining challenges in the commercialization of this technology are highlighted.
Article
Energy & Fuels
Faten Saman, Hasliza Bahruji, Abdul Hanif Mahadi, Celine Hee Se Ling
Summary: The reduction treatment affects the photocatalytic activity of g-C3N4 and Pd/g-C3N4 due to changes in their structural and optical properties. Reduced Pd/g-C3N4 exhibits improved H2 production rate, while g-C3N4 experiences a decline in photocatalytic activity after reduction. The hydrogen production rate follows the order of Pd/g-C3N4/450 degrees C > Pd/g-C3N4/250 degrees C > Pd/g-C3N4 > g-C3N4 > g-C3N4/250 degrees C > g-C3N4/450 degrees C. The presence of Pd reduces electron recombination and enhances charge mobility through Pd-N bond formation, while the formation of terminal -NH2 groups in g-C3N4 hinders electron conductivity due to increased hydrogen bonding. The role of the hydroxyl group on triethanolamine (TEOA) in scavenging photogenerated holes was demonstrated in in-situ photocatalytic hydrogen production.
Article
Chemistry, Multidisciplinary
Muhammad Salman Nasir, Guorui Yang, Iqra Ayub, Abdul Nasir, Wei Yan
Summary: The study presents a higher efficiency in hydrogen production using a 1D hollow tubular graphitic carbon nitride composite compared to zinc telluride and traditional graphitic carbon nitride, with significantly increased hydrogen yields and quantum efficiency.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Xinru Wang, Bingxin Yu, Qinyuan Wang, Jing Cao, Man Wang, Weifeng Yao
Summary: This study presents a facile method for synthesizing L-cysteine-protected Ru nanoclusters and demonstrates their effectiveness as co-catalysts in enhancing the photocatalytic activity and stability of CdS photocatalysts. The hybrid CdS photocatalyst modified with Ru nanoclusters shows superior performance compared to photoinduced Ru nanoparticles/CdS composite photocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Physical
Shelly Singla, Surbhi Sharma, Soumen Basu, Nagaraj P. Shetti, Tejraj M. Aminabhavi
Summary: This review highlights the environmentally friendly hydrogen production using carbon-based nanomaterials through photochemical and photoelectrochemical processes by water splitting. Various carbon materials like graphene, graphene oxide, carbon nanotubes, graphitic carbon nitride, and fullerenes are discussed for their photocatalytic properties and applications in hydrogen production. The advantages and shortcomings of these materials, along with their production methods and critical discussions, are covered in this article.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yuqing Hu, Puhui Deng, Wenying Wang, Linping Zhang, Yu Hou
Summary: Element doping and collaboration with other cocatalysts are important strategies to improve CdS's photoelectrochemical properties. In this study, manganese cadmium sulfides (MnxCd1-xS) were synthesized by a solvothermal method. The Mn0.5Cd0.5S sample showed the best photocatalytic hydrogen production, and further enhancement was achieved by coupling Ni-POMs as cocatalysts. The highest efficiency was observed for 15-Ni-4-Mn0.5Cd0.5S, which formed a double type-II heterojunction.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Wenbo He, Hongzhou Dong, Ping Zhao, Yan Huang, Bingnan Wang, Zhixing Gan, Honggang Lu, Rufan Zhang, Lina Sui, Lifeng Dong, Liyan Yu
Summary: Combining TiF3 with BP nanosheets can enhance the efficiency of photocatalytic hydrogen production and improve stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Yin-Feng Wang, Ming-Yu Qi, Marco Conte, Zi-Rong Tang, Yi-Jun Xu
Summary: This study presents a new radical-induced method for the synthesis of benzimidazoles through high-performance photoredox coupling of alcohols and diamines on Pd/ZnO nanosheets. The unique advantages of ZnO nanosheets, especially the role of Pd nanoparticles in cleaving the alpha-C-H bond of alcohols and adsorbing subsequently-generated C-centered radicals, are revealed. Rational design of semiconductor-based photoredox systems provides new insights for efficient benzimidazole synthesis and hydrogen gas generation based on radical mechanisms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Oncology
Xing Yan, Changhong Liu
Summary: Lung cancer is a rapidly increasing malignant cancer in China, and surgical treatment is the only effective treatment. However, postoperative local recurrence rate is high, mainly due to minimal residual disease. Monitoring circulating tumor DNA can assess the level of minimal residual disease and guide personalized postoperative treatment.
Article
Engineering, Multidisciplinary
Jie Wang, Xi Lu, Pengfei Du, Haotian Zheng, Zhaoxin Dong, Zihua Yin, Jia Xing, Shuxiao Wang, Jiming Hao
Summary: A new synergistic indicator is introduced to evaluate the synergistic effects of carbon mitigation on air pollutant reduction and public health in China. The results show that synergistic effects played an increasingly important role in emissions mitigation, leading to reductions in pollutants and improvements in air quality and public health. With urbanization and carbon neutrality, synergistic effects are expected to continue to increase.
Article
Computer Science, Artificial Intelligence
Jianjun Chu, Xiaoshan Yu, Shangshang Yang, Jianfeng Qiu, Qijun Wang
Summary: This paper proposes an evolutionary algorithm for neural network architecture search, introduces a novel indicator to measure population diversity, and suggests effective sampling and encoding strategies to optimize the search process. Experimental results demonstrate that the proposed method outperforms existing comparison methods.
COMPLEX & INTELLIGENT SYSTEMS
(2023)
Article
Fisheries
Moamer A. H. Ahmed, Jiabao Ma, Shuai Shao, Qiyao Wang, Rongjing Xu, Kaiyu Yin
Summary: In this study, it was discovered that a PDZ-domain-containing protease (Prc) regulated the expression of esrB and T3/T6SSs in different manners at different growth stages. Additionally, Prc mediated the regulation of environmental acidic signals on the expression of esrB. Mutation of esrA impaired E. piscicida virulence expression irrespective of the ambient acidic signals. These findings provide a comprehensive understanding of the virulence regulation upon sensing the environmental acidic signals in bacterial pathogens.
Article
Biochemical Research Methods
Chenchen Liu, Huiling Chen, Yida Zhang, Meng Li, Qiyao Jiang, Zhendong Wang, Liangwen Yu, Qi Wang, Huafeng Pan, Yue Zhuo
Summary: This study identified the chemical composition of Li-Zhong-Xiao-Pi granules (LZXP) using UPLC-Q-TOF-MS and found six active ingredients and five crucial targets involved in treating gastric precancerous lesions (GPL). The research provides a systematic method for screening and understanding the mechanism of LZXP in GPL treatment.
BIOMEDICAL CHROMATOGRAPHY
(2023)
Article
Engineering, Electrical & Electronic
Liqi Yan, Qifan Wang, Siqi Ma, Jingang Wang, Changbin Yu
Summary: This paper presents a weakly supervised framework called STC-Seg for instance segmentation and tracking in videos, which utilizes spatio-temporal collaboration. It generates effective pseudo-labels for training deep networks and predicting high-quality instance masks by leveraging the complementary representations from unsupervised depth estimation and optical flow. The framework also enhances mask generation with a puzzle loss and improves robustness to different object appearances through a tracking module that jointly utilizes bounding-box diagonal points with spatio-temporal discrepancy.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xinxiu Wang, Ruirun Chen, Qi Wang, Shu Wang, Yili Li, Yanqing Su, Yuan Xia, Guoping Zhou, Guanglong Li, Yingdong Qu
Summary: Reasonable selection of process parameters can affect the temperature and flow fields of metal liquid in the mold cavity and achieve the desired casting organization. This study simulated the temperature and flow fields of high molybdenum cast iron casting under different casting temperatures and mold preheating temperatures. The results indicate that casting temperature has a strong impact on the movement state of the metal liquid, while mold preheating temperature influences the solidification rate and cooling time of the casting.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Pan Wu, Yubing Zhang, Jiaqi Hu, Shaojie Song, Yong Li, Huiyuan Wang, Guo Yuan, Zhaodong Wang, Shizhong Wei, Feng Liu
Summary: This study proposes a systematic framework that integrates non-equilibrium dendritic growth and overall solidification kinetics, and introduces a generalized stability (GS) concept derived from transient thermodynamic driving force AG t and transient kinetic energy barrier Q t eff. The framework allows for quantitatively controlling and optimizing segregation phenomena in twin-roll casting (TRC) process.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yang Liu, Yuliang Wu, Tong Wang, Qian Wang, Xianchao Han, Xiaofu Wu, Hui Tong, Lixiang Wang
Summary: A series of host materials containing a hole-transport triphenyl-substituted triazatruxene conjugated skeleton and different numbers of diphenyl methylene-bridging groups were developed for solution-processed yellow TADF OLEDs. These host materials exhibited high triplet energy, effectively separated the TADF emitters, and showed high thermal stability and good solubility. The OLED using 2FTAT-1Ph as host achieved low turn on voltage, high external quantum efficiency, and remarkable power efficiency, demonstrating the potential of diphenyl methylene bridged tri-azatruxene derivatives as high-performance host materials for solution-processed TADF OLEDs.
ORGANIC ELECTRONICS
(2023)
Article
Plant Sciences
Qi Wu, Xue Bai, Mengping Nie, Li Li, Yiming Luo, Yu Fan, Changying Liu, Xueling Ye, Liang Zou
Summary: This study identified 23 PEBP genes in quinoa and determined their roles in growth and flowering. Transcription factors that may regulate flowering in quinoa were also discovered. These findings are significant for future quinoa breeding.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Chemistry, Physical
Ning Gao, Xuetao Shen, Yifan Liu, Zhanwei Xu, Xi Wang, Hangyu Liu, Yuchuan Ren, Siyu Chen, Zhi Li
Summary: To inhibit the shuttle effect of LiPSs and accelerate the conversion of LiPSs to Li2S, researchers prepared Co-Co9S8-nitrogen-doped carbon (NC) particles anchored on 3D hyperfine carbon nanofiber networks (CNF/Co-Co9S8-NC) to modify the Li-S battery separator. The modified battery exhibited excellent electrochemical performance due to the dual limiting effect.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Cuicui Wang, Yuhao Zhang, Yifan Liu, Qian Chen, Yingxuan Song, Anqi Cai, Hongwei Guo, Pei Zhang
Summary: Pure and alkaline earth metal elements (Mg2+, Ca2+ and Sr2+) doped NaTaO3 nanofilms were prepared by a simple hydrothermal method, showing better stability and recycling performance in wastewater treatment. The band gaps of NaTaO3 were reduced to 2.83, 3.01 and 2.96 eV after doping with Mg2+, Ca2+ and Sr2+. Mg-NaTaO3 catalyst exhibited a higher photodegradation efficiency of 80.1% for methylene blue solution under visible light irradiation and a strong inhibition effect on E. coli and S. aureus.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Xin-Fang Zhai, Jing-Jing Fan, Yang Yi, Meng Zhang, Xia Yuan, Xue Qiao, Lei Liang, Min Ye
Summary: This research reports the first sensitive and selective fluorescent off-on UGT1A10 probe substrate called UPr6, which can be used to monitor the function of UGT1A10 in biological systems. Through a collaborative modification strategy, the researchers designed UPr6 by introducing a rigid propyl morpholine group and a methoxy group to the amide and 4'-phenoxy positions, respectively. The study also discovered two natural products from licorice as potent UGT1A10 inhibitors, which improved the sensitivity of CPT-11 against a resistant human cancer cell line. This work established a feasible strategy for designing isoform-specific UGT probe substrates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Yu Zhang, Yuqing He, Yiyang Zhang, Shaojie Song, Feng Liu
Summary: In this study, an analytical treatment was conducted to quantitatively evaluate the growth retardation of bainitic transformation (BT) in HSLA steels. By analyzing the thermodynamic driving force ΔG and kinetic energy barrier Q, along with modeling the transformed fraction, unified expressions for thermo-kinetic correlation and generalized stability (GS) were derived. The current model, based on a proposed criterion of high ΔG-high GS, can be used to design the BT to produce bainitic microstructure with high strength and high plasticity, as confirmed by experimental results.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Bin Li, Yuxiang Xu, Guoliang Rao, Qimin Wang, Jun Zheng, Ruiyuan Zhu, Yubo Chen
Summary: To improve the wear resistance and cutting performance of AlTiN coatings, a structure optimization strategy and a nano-multilayer architecture strategy were presented. The investigated AlTiN coatings exhibited improved properties, including phase structure, hardness, adhesion, and tribological properties. The Al0.67Ti0.33N/Al0.5Ti0.5N multilayer with enhanced mechanical properties achieved the lowest wear rate and longest cutting lifetime.
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)
