Nanomanufacturing and Metrology最新文献_第4页

Nanomanufacturing and Metrology Pub Date : 2023-08-01 DOI: 10.3390/nanomanufacturing3030021

G. Kordas

引用次数: 0

Angle Measurement Based on Second Harmonic Generation Using Artificial Neural Network 基于二次谐波产生的人工神经网络角度测量

Nanomanufacturing and Metrology Pub Date : 2023-07-27 DOI: 10.1007/s41871-023-00206-5

Kuangyi Li, Zhi-Li Zhang, Jiahui Lin, R. Sato, H. Matsukuma, W. Gao

引用次数: 0

Calculation Model for the Steady-State Vibration Amplitude of a New Type of Cascaded Composite Structure-Based Ultrasonic Transducer 一种新型级联复合结构超声换能器稳态振幅计算模型

Nanomanufacturing and Metrology Pub Date : 2023-07-24 DOI: 10.1007/s41871-023-00204-7

Hongjie Zhang, Xinyue Gao, Xiaochen Liu, Junqiang Wu

引用次数: 0

Bridging the Divide Between Iterative Optical Polishing and Automation 跨越迭代光学抛光和自动化之间的鸿沟

Nanomanufacturing and Metrology Pub Date : 2023-07-21 DOI: 10.1007/s41871-023-00197-3

David Walker, J. I. Ahuir-Torres, Yasemin Akar, Paul A. Bingham, Xun Chen, Michal Darowski, O. Fähnle, Philippe Gambron, Frankie F. Jackson, Hongyu Li, Luke Mason, Rakesh Mishra, Abdullah Shahjalal, Guoyu Yu

引用次数: 1

Effect of Textured Glasses on Conversion Efficiency in Dye-Sensitized Solar Cells 纹理玻璃对染料敏化太阳能电池转换效率的影响

Nanomanufacturing and Metrology Pub Date : 2023-07-05 DOI: 10.3390/nanomanufacturing3030020

Ryutaro Kimura, Yuji Nishiyasu, C. Oka, S. Hata, J. Sakurai

{"title":"Effect of Textured Glasses on Conversion Efficiency in Dye-Sensitized Solar Cells","authors":"Ryutaro Kimura, Yuji Nishiyasu, C. Oka, S. Hata, J. Sakurai","doi":"10.3390/nanomanufacturing3030020","DOIUrl":"https://doi.org/10.3390/nanomanufacturing3030020","url":null,"abstract":"In this paper, three types of optical textured glass substrates were prepared at the glass/transparent conductive oxide interface using polydimethylsiloxane nanoimprint lithography to increase the conversion efficiency of dye-sensitized solar cells (DSSCs). There were three types of textures: nanotexture, microtexture, and micro/nano double texture. In terms of optical characteristics, it was confirmed that the reflectance of all of the textured glass substrates was lower than that of flat glass in the mean value of the 400–800 nm wavelength band. Further, the diffuse transmittance was higher than that of flat glass for all of the textured glass substrates, and the D-Tx was particularly high. DSSCs were fabricated using N749 and N719 dyes; their size was 6 mm2. The conversion efficiencies of the N749 DSSCs were improved by 11% for the N-Tx (η of 2.41%) and 10% for the D-Tx (η of 2.38%) compared with flat glass (η of 2.17%) DSSCs. On the other hand, the M-Tx did not improve it. The conversion efficiencies of the N719 DSSCs with textured glass substrates were improved by 7.5% for the M-Tx (η of 2.74%), 18% for the N-Tx (η of 3.01%), and 26% for the D-Tx (η of 3.22%) compared with flat glass (η of 2.55%) DSSCs.","PeriodicalId":52345,"journal":{"name":"Nanomanufacturing and Metrology","volume":"129 10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77527626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Area-Specific Positioning of Metallic Glass Nanowires on Si Substrate 金属玻璃纳米线在Si衬底上的区域定位

Nanomanufacturing and Metrology Pub Date : 2023-07-05 DOI: 10.1007/s41871-023-00205-6

S. Theeda, G. Kumar

引用次数: 0

Effect of Probe Lifting Height in Jumping Mode AFM for Living Cell Imaging 跳模AFM中探针升降高度对活细胞成像的影响

Nanomanufacturing and Metrology Pub Date : 2023-07-03 DOI: 10.1007/s41871-023-00196-4

Can Cheng, Xingyue Wang, Jianjun Dong, Zuobin Wang

引用次数: 0

Thermodynamic Theory of Phase Separation in Nonstoichiometric Si Oxide Films Induced by High-Temperature Anneals 高温退火诱导非化学计量氧化硅膜相分离的热力学理论

Nanomanufacturing and Metrology Pub Date : 2023-07-03 DOI: 10.3390/nanomanufacturing3030019

A. Sarikov

{"title":"Thermodynamic Theory of Phase Separation in Nonstoichiometric Si Oxide Films Induced by High-Temperature Anneals","authors":"A. Sarikov","doi":"10.3390/nanomanufacturing3030019","DOIUrl":"https://doi.org/10.3390/nanomanufacturing3030019","url":null,"abstract":"High-temperature anneals of nonstoichiometric Si oxide (SiOx, x < 2) films induce phase separation in them, with the formation of composite structures containing amorphous or crystalline Si nanoinclusions embedded in the Si oxide matrix. In this paper, a thermodynamic theory of the phase separation process in SiOx films is proposed. The theory is based on the thermodynamic models addressing various aspects of this process which we previously developed. A review of these models is provided, including: (i) the derivation of the expressions for the Gibbs free energy of Si oxides and Si/Si oxide systems, (ii) the identification of the phase separation driving forces and counteracting mechanisms, and (iii) the crystallization behavior of amorphous Si nanoinclusions in the Si oxide matrix. A general description of the phase separation process is presented. A number of characteristic features of the nano-Si/Si oxide composites formed by SiOx decomposition, such as the local separation of Si nanoinclusions surrounded by the Si oxide matrix; the dependence of the amount of separated Si and the equilibrium matrix composition on the initial Si oxide stoichiometry and annealing temperature; and the correlation of the presence of amorphous and crystalline Si nanoinclusions with the presence of SiOx (x < 2) and SiO2 phase, respectively, in the Si oxide matrix, are explained.","PeriodicalId":52345,"journal":{"name":"Nanomanufacturing and Metrology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76482587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Electrostatic Charging of Fine Powders and Assessment of Charge Polarity Using an Inductive Charge Sensor 微细粉体的静电充电及电感式电荷传感器的电荷极性评估

Nanomanufacturing and Metrology Pub Date : 2023-06-28 DOI: 10.3390/nanomanufacturing3030018

Tong Deng, Vivek Garg, M. Bradley

{"title":"Electrostatic Charging of Fine Powders and Assessment of Charge Polarity Using an Inductive Charge Sensor","authors":"Tong Deng, Vivek Garg, M. Bradley","doi":"10.3390/nanomanufacturing3030018","DOIUrl":"https://doi.org/10.3390/nanomanufacturing3030018","url":null,"abstract":"Electrostatic charging of powders becomes important, when particles become smaller, especially for fine powders at micron or sub-micron size. Charging of powders causes strong particle adhesion and consequently difficulties in processes such as blending or mixing, and sieving, etc. Not only does the charge of powders influence the process and the quality of the products, but also the discharge creates risks of dust explosion. Assessing powder charge and the hazards in manufacturing can be difficult. One of the major challenges is to evaluate the charge levels and polarity in the powders but this requires a significant number of tests to detect charge tendency and distributions in bulk materials, which is time-consuming. In this paper, electrostatic charging of powders in material handling processes and the associated hazards are briefly reviewed. For an assessment, the challenges for sensing electrostatic charges of particulate solids, particularly for fine powders, are discussed. It was revealed that sensing the charge polarity for representative samples of powders can be the main challenge because of the difficulty in separation of the charged particles. The inductive charge sensor showed great potential to measure charge levels and polarity distributions in powders. Experimental trials for several fine powders showed that the inductive charge sensor can be used for rapidly assessing chargeability and charge polarity distribution of powders.","PeriodicalId":52345,"journal":{"name":"Nanomanufacturing and Metrology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77888010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Superferromagnetic Sensors Superferromagnetic传感器

Nanomanufacturing and Metrology Pub Date : 2023-06-24 DOI: 10.3390/nanomanufacturing3030017

V. N. Kondratyev, V. Osipov

{"title":"Superferromagnetic Sensors","authors":"V. N. Kondratyev, V. Osipov","doi":"10.3390/nanomanufacturing3030017","DOIUrl":"https://doi.org/10.3390/nanomanufacturing3030017","url":null,"abstract":"The strong ferromagnetic nanoparticles are analyzed within the band structure-based shell model, accounting for discrete quantum levels of conducting electrons. As is demonstrated, such an approach allows for the description of the observed superparamagnetic features of these nanocrystals. Assemblies of such superparamagnets incorporated into nonmagnetic insulators, semiconductors, or metallic substrates are shown to display ferromagnetic coupling, resulting in a superferromagnetic ordering at sufficiently dense packing. Properties of such metamaterials are investigated by making use of the randomly jumping interacting moments model, accounting for quantum fluctuations induced by the discrete electronic levels and disorder. Employing the mean-field treatment for such superparamagnetic assemblies, we obtain the magnetic state equation, indicating conditions for an unstable behavior. Respectively, magnetic spinodal regions and critical points occur on the magnetic phase diagram of such ensembles. The respective magnetodynamics exhibit jerky behavior expressed as erratic stochastic jumps in magnetic induction curves. At critical points, magnetodynamics displays the features of self-organized criticality. Analyses of magnetic noise correlations are proposed as model-independent analytical tools employed in order to specify, quantify, and analyze the magnetic structure and origin of superferromagnetism. We discuss some results for a sensor-mode application of superferromagnetic reactivity associated with spatially local external fields, e.g., the detection of magnetic particles. The transport of electric charge carriers between superparamagnetic particles is considered tunneling and Landau-level state dynamics. The tunneling magnetoresistance is predicted to grow noticeably with decreasing nanomagnet size. The giant magnetoresistance is determined by the ratio of the respective times of flight and relaxation and can be significant at room temperature. Favorable designs for superferromagnetic systems with sensor implications are revealed.","PeriodicalId":52345,"journal":{"name":"Nanomanufacturing and Metrology","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77557034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1