ECS Journal of Solid State Science and Technology最新文献_第2页

Insight into the Impact of Electron Drift Trajectory on Charge Collection in Silicon Drift Detector 洞察电子漂移轨迹对硅漂移探测器电荷收集的影响

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-09-04 DOI: 10.1149/2162-8777/ad7401

Rongrong Guo, Yujia Peng, Huixiang Huang, Chih-Ching Chen, Tsung-Yi Chen

{"title":"Insight into the Impact of Electron Drift Trajectory on Charge Collection in Silicon Drift Detector","authors":"Rongrong Guo, Yujia Peng, Huixiang Huang, Chih-Ching Chen, Tsung-Yi Chen","doi":"10.1149/2162-8777/ad7401","DOIUrl":"https://doi.org/10.1149/2162-8777/ad7401","url":null,"abstract":"The internal electric field distribution is one key design consideration, which affects the charge collection efficiency in silicon drift detectors (SDDs). The internal electrostatic potential distributions along SDD front and back surfaces, which are determined by the applied voltages at cathode electrodes, define the final internal field distribution. Front-back bias coupling leads to the complexity of electrode structure design and voltage tuning. Device simulation is performed to investigate the performance of SDDs with varied bias voltages. When the cathode bias is −40 V with the first ring bias of −15 V and the outermost ring bias of −80 V, the detector is biased with a uniform electric field distribution, favorable electron drift trajectories. The simulation results provide new insight into the influence of internal electric field and electron drift trajectories on the charge collection efficiency. According to the analysis of simulation results, a 2000 × 2000 μm area concentric silicon drift detector was designed and fabricated. The electrical characteristics of the designed detectors were studied to show the validity of the proposed device design methodology. The internal electric field distribution and electron drift trajectories can be tuned to improve the charge collection efficiency.","PeriodicalId":11496,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":"14 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Communication—Tunable Lorentz-Type Negative Permittivity of PANI/Epoxy Resin Composites in the Frequency Range from 3 kHz to 1 MHz 3 kHz 至 1 MHz 频率范围内 PANI/环氧树脂复合材料的通信可调洛伦兹型负脆性

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-09-04 DOI: 10.1149/2162-8777/ad7402

Min Chen, Shuxin Chen, Yaxuan Ji, Kai Zhang

引用次数: 0

Growth, Characterizations of Oxalic Acid Di-Hydrate Crystals of Pure, Milled, Shocked Impact of 50 Scaling for Electronic, Photonic, Display and Sensor Usefulness by Theory and Practice 草酸二水合物晶体的生长和特性：纯晶体、研磨晶体、冲击晶体 50 缩放对电子、光子、显示和传感器用途的理论和实践影响

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-30 DOI: 10.1149/2162-8777/ad71f0

Padmanaban B, Hariharasuthan R, Saravanan P, SenthilKannan K

{"title":"Growth, Characterizations of Oxalic Acid Di-Hydrate Crystals of Pure, Milled, Shocked Impact of 50 Scaling for Electronic, Photonic, Display and Sensor Usefulness by Theory and Practice","authors":"Padmanaban B, Hariharasuthan R, Saravanan P, SenthilKannan K","doi":"10.1149/2162-8777/ad71f0","DOIUrl":"https://doi.org/10.1149/2162-8777/ad71f0","url":null,"abstract":"Oxalic acid dihydrate (OADH) crystal was grown by slow evaporation solution method, milled to micro-OADH, impacted with shocked 50 pulses and harvested in a 16-day period. The 2 MPa pressure with 2.2 Mach number of 864 K temperature specifies the product as shocked 50 scaled OADH. Single crystalline X-ray diffraction of OADH macro are as specified with P21/n as space group with monoclinic as the crystal system and shocked 50 scaled OADH are with lattice constants; the % of elements of OADH specimen are confirmed by theory and practice. The dielectric constant of OADH is higher at lower frequency values by space charge polarization. OADH of all scales are of the negative photo-conductivity type. The influx data of OADH of three types of scaling are identified as better electronic filter. The micro-OADH is confirmed by the scanning electron microscopy analysis as 10 micrometer scaling without any flaws. The Fluorescence (FL) study shows bluish FL emission for all samples of OADH; sensitivity is 8.88>6.6>2.2 for shocked 50-OADH, micro-OADH, macro-OADH. The Miller’s indices of (101) profile for RGB display is shown without as well with recursive colors of OADH.","PeriodicalId":11496,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":"41 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring the Magnetic, Structural and Shielding Characteristics of Nano Er2O3 via Ni Doping 通过掺杂镍调整纳米 Er2O3 的磁性、结构和屏蔽特性

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-30 DOI: 10.1149/2162-8777/ad71f1

Zein K. Heiba, Mohamed Bakr Mohamed, Ali Badawi

{"title":"Tailoring the Magnetic, Structural and Shielding Characteristics of Nano Er2O3 via Ni Doping","authors":"Zein K. Heiba, Mohamed Bakr Mohamed, Ali Badawi","doi":"10.1149/2162-8777/ad71f1","DOIUrl":"https://doi.org/10.1149/2162-8777/ad71f1","url":null,"abstract":"We investigated the effects of Ni-doping amount on the structural, magnetic, and shielding properties of nano Er2O3. Nano Er2−xNixO3 (x = 0, 0.05, 0.1, 0.15) samples were fabricated by a pechini scheme and characterized via X-ray diffraction. Rietveld refinement was used to discover the distribution of cations on the two crystallographic sites. Cation ordering in the two nonequivalent sites of the structure and the variation of the oxygen bond lengths of octahedra with the composition x were also investigated. A consistent reduction in the average bond lengths of (Er/Ni)O6 octahedra around 8b and 24d as x progresses was observed. Average crystallite size reduced while average lattice micro-strain increased with increasing Ni doping. The correlation between magnetization and temperature for all samples under a magnetic field of 200 Oe was studied. Curie-Weiss law was applied to find the magnetic moments and the types of magnetic structure. The <italic toggle=\"yes\">μ</italic>\u0000eff in the Er2−xNixO3 samples dropped from 9.7 to 9.36 μB as the nickel doping level rose from 0 to 0.15. Calculated magnetic moments, <italic toggle=\"yes\">μ</italic>\u0000cal, were found to drop from 9.4 to 9.02 μB as the nickel doping level changed from x = 0 to x = 0.15 in Er2−xNixO3 samples. Curie paramagnetic temperature (<italic toggle=\"yes\">θ</italic>) for all samples has been observed to rise from −10.6 to −19.34. The theoretical gamma-ray attenuation parameters for nano Er2−xNixO3 samples were acquired through the Phy-X/PSD software. The nano Er2−xNixO3 samples have been proven to possess remarkable magnetic and neutron shielding applications.","PeriodicalId":11496,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":"30 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Milk Tea–Colored Perovskite Solar Cells Fabricated Through a Multilayer Film Design 通过多层薄膜设计制造奶茶色 Perovskite 太阳能电池

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-30 DOI: 10.1149/2162-8777/ad71f3

Yu-Hung Chen, Ching-Chuan Chou, Hong-Shi Liu, Chien-Tso Lin, Yu-Pin Lin

引用次数: 0

Multifunctional Characterization and Anticancer Properties of Magnetic Zinc Ferrite Nanoparticles by Modified Ultrasonic Assisted Co-precipitation Method 改良超声波辅助共沉淀法表征磁性锌铁氧体纳米粒子的多功能性和抗癌特性

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-30 DOI: 10.1149/2162-8777/ad71f2

K. Ashok, P. Usha, Nagaraju R., T. Ramesh, N. Pavan Kumar, Ghassan M. Sulaiman

{"title":"Multifunctional Characterization and Anticancer Properties of Magnetic Zinc Ferrite Nanoparticles by Modified Ultrasonic Assisted Co-precipitation Method","authors":"K. Ashok, P. Usha, Nagaraju R., T. Ramesh, N. Pavan Kumar, Ghassan M. Sulaiman","doi":"10.1149/2162-8777/ad71f2","DOIUrl":"https://doi.org/10.1149/2162-8777/ad71f2","url":null,"abstract":"Zinc Ferrite (ZnFe2O4) nanoparticles were synthesized successfully via the modified ultrasonic-assisted co-precipitation method. Structural characterization, conducted through X-ray diffraction (XRD) analysis and Rietveld refinement, revealed a single cubic phase with a mixed spinel structure. Fourier transform infrared spectroscopy confirmed the presence of functional groups indicative of the spinel ferrite structure. Morphological analysis using field-emission scanning electron microscopy showcased the nanoparticles’ uniform morphology and size distribution. UV–vis spectra revealed the optical properties, while the Tauc Plot method determined the optical band gap. Electron paramagnetic resonance spectra confirm the symmetric resonance peak with 1254 Oe line width and the Lande g value 2.133. Magnetic hysteresis loops confirm the soft magnetic nature of the nanoparticles with magnetic saturation and coercivity of 39.2 emu gm−1 and 77.5 Oe. The anticancer properties against various cancer cell lines (HeLa, HepG-2 and MCF-7) revealed significant anticancer activity against HepG-2 and HeLa cells compared to MCF-7 cancer cells, and the results were compared with the standard drug cisplatin. A comparative analysis of results among cancer cell lines was conducted and discussed.","PeriodicalId":11496,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":"23 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Smooth and Vertical Sidewall Formation for AlGaN-Based Electronic and Optoelectronic Devices 为氮化铝基电子和光电器件形成平滑垂直的侧壁

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-28 DOI: 10.1149/2162-8777/ad6f43

Arnob Ghosh, Agnes Maneesha Dominic Merwin Xavier, Siddharth Rajan, Shamsul Arafin

引用次数: 0

Hierarchical Nitrogen-Doped Carbon: A Bifunctional Catalyst for Oxygen Reduction and Evolution Reactions 分层掺氮碳：氧气还原和进化反应的双功能催化剂

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-28 DOI: 10.1149/2162-8777/ad709f

Anand Parkash, Adeel Mukhtar Arain, Masroor Abro

{"title":"Hierarchical Nitrogen-Doped Carbon: A Bifunctional Catalyst for Oxygen Reduction and Evolution Reactions","authors":"Anand Parkash, Adeel Mukhtar Arain, Masroor Abro","doi":"10.1149/2162-8777/ad709f","DOIUrl":"https://doi.org/10.1149/2162-8777/ad709f","url":null,"abstract":"This study presents the synthesis and characterization of hierarchical nitrogen-doped carbon (HCN-900), demonstrating remarkable electrocatalytic performance for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), outperforming traditional catalysts like RuO₂ and Pt/C. HCN-900 exhibits an onset potential of 0.98 V and a half-wave potential of 0.85 V for ORR, closely matching Pt/C performance while achieving an electron transfer number of 4.0, indicative of a four-electron pathway. For OER, HCN-900 achieves a current density of 10 mA cm⁻2 at an overpotential of 223 mV, significantly lower than RuO₂ (288 mV) and Pt/C (363 mV). The material also shows a Tafel slope of 87 mV dec⁻¹, indicating rapid kinetics and efficient electron transfer. This impressive performance is attributed to the optimized structural and electronic properties of HCN-900, including its high surface area, hierarchical porosity, and nitrogen doping, which enhance active site density and promote electron transport. Furthermore, HCN-900 retains approximately 96.72% of its initial performance after 10 h of continuous operation, demonstrating excellent long-term stability. The comprehensive analysis highlights HCN-900 as a promising bifunctional catalyst for advanced energy applications, providing a cost-effective and sustainable alternative to conventional catalysts. Its superior electrocatalytic properties make HCN-900 an excellent candidate for integration into next-generation energy conversion and storage systems.","PeriodicalId":11496,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":"18 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Communication—A Powerful Method to Improve Dielectric/GaN Interface Properties: A Dummy SiO2 Process 通信--改善介电质/氮化镓界面特性的有效方法：模拟二氧化硅工艺

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-28 DOI: 10.1149/2162-8777/ad6fd2

Yoshihiro Irokawa, Toshihide Nabatame, Tomomi Sawada, Manami Miyamoto, Hiromi Miura, Kazuhito Tsukagoshi, Yasuo Koide

引用次数: 0

Effects of Ceria Abrasives on the Chemical Mechanical Polishing of Molybdenum Film with Alkaline H2O2 Slurries 铈磨料对使用碱性 H2O2 泥浆进行钼膜化学机械抛光的影响

IF 2.2 4区材料科学

ECS Journal of Solid State Science and Technology Pub Date : 2024-08-28 DOI: 10.1149/2162-8777/ad6f41

Lianfeng Hu, Yingjie Wang, Qiancheng Sun, Chun-Feng Hu, Haijun Cheng, Xin-Ping Qu

{"title":"Effects of Ceria Abrasives on the Chemical Mechanical Polishing of Molybdenum Film with Alkaline H2O2 Slurries","authors":"Lianfeng Hu, Yingjie Wang, Qiancheng Sun, Chun-Feng Hu, Haijun Cheng, Xin-Ping Qu","doi":"10.1149/2162-8777/ad6f41","DOIUrl":"https://doi.org/10.1149/2162-8777/ad6f41","url":null,"abstract":"The impact of ceria abrasives on the chemical mechanical polishing (CMP) of molybdenum (Mo) films was examined in alkaline slurries utilizing H2O2 as an oxidizer and ceria abrasives. The static etching rate (SER) decreased after the addition of ceria abrasives to the alkaline H2O2-based slurry, while the removal rate (RR) increased except for that of the slurry at pH 9. At pH 9, following the etching of the Mo film in an H2O2 solution with ceria, the surface became coated with MoO3 and Ce2Mo4O15 species. These species originated from the interaction between ceria, H2O2, and molybdic acid. The Ce2Mo4O15 particles envelop the MoO3 surface, thereby preventing the etching of loose MoO3 and hindering further oxidation of Mo to MoO3. This process effectively reduces the RR of Mo. Utilizing ceria slurries at appropriate pH values facilitates achieving a smooth surface with a reasonable RR.<inline-formula>\u0000<inline-graphic xlink:href=\"jssad6f41-ga.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>","PeriodicalId":11496,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":"73 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142189615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0