Fabrication and Characterization of Silicon Nitride Nanopores PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Fabrication and Characterization of Silicon Nitride Nanopores PDF full book. Access full book title Fabrication and Characterization of Silicon Nitride Nanopores by Dhruti Mayur Trivedi. Download full books in PDF and EPUB format.
Author: Dhruti Mayur Trivedi
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Dhruti Mayur Trivedi
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Taekyung Kim
Publisher:
ISBN:
Category :
Languages : en
Pages : 70
Get Book Here
Book Description
Author: 顏嘉男
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Toshiyuki Nishimura
Publisher: Springer
ISBN: 4431553843
Category : Technology & Engineering
Languages : en
Pages : 53
Get Book Here
Book Description
In this book, improvements in the heat resistance of silicon nitride (Si3N4) ceramics using grain boundary control and in plasticity at high temperatures using grain size control in order to reduce the cost of shaping Si3N4 are described. The heat resistance of Si3N4 is improved by mixing a slight amount of sintering additive as an impurity into the original material powder. The author presents his findings on the high heat resistance of Si3N4. The author also develops a new fabrication method for Si3N4 nano-ceramics that produces high plastic formability. The method developed offers two improved points in grinding and sintering processes. The author found that the plastic formability of Si3N4 nanoceramics is dependent on load stress; the results of his research are detailed in this book.
Author: Nazar Ileri
Publisher:
ISBN: 9781124508849
Category :
Languages : en
Pages :
Get Book Here
Book Description
Nanoporous devices are up-and-coming platforms for selective molecule separation and sensing. They have great potential for high throughput and economy in manufacturing and operation. Acting as mass transfer diodes similar, tapered pores are proven to have superior performance characteristics compared to traditional cylindrical pores. Nevertheless, such phenomena remain to be exploited for molecular separation. In this thesis, we present fabrication, characterization, modeling, and performance results of thin silicon based sieves created by interferometric lithography, an approach which is ideally suited for the integration of nano-structured materials into microfluidic processing systems. Millimeter sized planar arrays of uniformly cylindrical and pyramidal nanopores are created in silicon nitride and silicon respectively with pore diameter/side length 200 nm or smaller. Molecular transport properties of the fabricated devices are investigated by molecular dynamics simulations against state-of-the-art polycarbonate track etched (PCTE) membranes. Higher diffusion rates are achieved with thin pores among which the highest rates were for thin cylindrical pores. The best separation capability, on the other hand, is achieved with pyramidal pores in presence of electrostatics. Increasing the pore size and decreasing the molecule size increased the rates and fluxes and decreased the pore clogging probability in general. The least possibility of fouling is achieved with pyramidal pores having molecular transport from small to large square. For the pore/protein ratio
Author:
Publisher: ScholarlyEditions
ISBN: 146496744X
Category : Technology & Engineering
Languages : en
Pages : 352
Get Book Here
Book Description
Issues in Nanotechnology and Micotechnology: Engineering, Fabrication, and Structural Research: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Nanotechnology and Micotechnology—Engineering, Fabrication, and Structural Research. The editors have built Issues in Nanotechnology and Micotechnology: Engineering, Fabrication, and Structural Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Nanotechnology and Micotechnology—Engineering, Fabrication, and Structural Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Nanotechnology and Micotechnology: Engineering, Fabrication, and Structural Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author: Denis Forbi Tita
Publisher:
ISBN: 9781267549426
Category : Biomedical engineering
Languages : en
Pages : 118
Get Book Here
Book Description
Solid State nanopores that are fabricated by the ion beam sculpting process and electron beam drilling have shown great promise as a sensing device for DNA and protein molecules. Even though biological pores such as the alpha-Haemolysin have been in use for quite some time, the use of solid state Nanopores in single biomolecule detection has been on the rise since the mid 1990s. Solid State nanopores have an advantage over biological pores in that they are more robust, stable, and can be sculpted to any desired size for use in translocation experiments. One of the major challenges in Nanopore fabrication by ion beam sculpting has been limited by the user's ability to control the closure rate of pores in the fabrication process. Another challenge in nanopore sensing is the resolution limitation due to the thickness of the pore. This is because most of the nanopores fabricated by the ion beam sculpting method are often thicker than they should. This thesis will focus on the modification of nanopore fabrication using the ion beam sculpting system at the University of Arkansas by first baking the samples in vacuum under specified temperature conditions. Baking the samples will give the user better control over pore closure. This Thesis will also focus on thinning the sculpted pores by Reactive Ion Etching in an attempt to increase its resolution for single biomecule translocation experiments.
Author: Chengzhu Qi
Publisher:
ISBN:
Category :
Languages : en
Pages : 130
Get Book Here
Book Description
"Porous nanocrystalline silicon (pnc-Si) membrane is a new class of materials that is promising for a wide range of applications from biofiltration to cell culture substrate. Nano-size pores are spontaneously formed in a silicon film sandwiched between two silicon dioxide layers during rapid thermal annealing. Previous research has shown that pore formation in the pnc-Si membrane is thermally driven and closely connected to silicon crystallization, however, the process by which pore are formed is still not well understood. In this thesis, the fabrication and characterization process of pnc-Si membranes is first introduced to understand their basic structure and properties, followed next by a study on the effects silicon dioxide capping films have on pore formation. The results show that both the top and bottom silicon dioxide films are essential to pore formation in pnc-Si membranes. The top oxide layer prevents the silicon film from agglomerating while the bottom oxide layer acts as a barrier layer to prevent homoepitaxy of the silicon film during annealing. To study the effects of capping materials on pore formation, silicon nitride, is incorporated into the sandwich structure to replace the capping silicon dioxide layers. From this study, it was found for the first time that nanopores can still be formed in silicon films sandwiched between two silicon nitride layers during rapid thermal annealing. Pore formation in these new silicon nitride capped structures is then discussed, along with the resulting pore characteristics. In the final part of this thesis, ex-situ and in-situ annealing studies of pore formation in pnc-Si membranes are discussed. The ex-situ study shows that both the silicon crystallization and associated pore formation are enhanced in the silicon film in the nitride/silicon/nitride (NSN) stack compared to that in the oxide/silicon/oxide (OSO) stack. The in-situ heating studies demonstrate that pore growth in the NSN stack follows a pearl-necklace pattern while no clear pattern is observed from the OSO stack. The energy-dispersive X-ray spectroscopy (EDS) study shows that Ar atoms embedded during sputtering move together, forming Ar bubbles to occupy the porous areas in the silicon film during the heating process. These Ar bubbles are held in the pores of the silicon film when silicon nitride is used to cap the membrane, but when silicon dioxide is used as the capping layer the Ar diffuses out of the structure. This may lead to the different pore growth patterns between the NSN and OSO stacks. Finally, pore formation process can be understood in two stages which are void nucleation and pore growth. Nano-voids are nucleated in the silicon film near interface with the oxide or nitride layer, and grow in both the vertical and lateral directions during crystallization process. This process is attributed to the diffusion of silicon atoms during the transition from amorphous silicon to nanocrystalline silicon. These voids become through pores when their growth spans the entire silicon film in the vertical direction. The pore growth is strongly affected by the silicon thickness, temperature ramp rate and capping layers"--Pages vi-vii.
Author: Klaus D. Sattler
Publisher: CRC Press
ISBN: 1000710157
Category : Technology & Engineering
Languages : en
Pages : 485
Get Book Here
Book Description
21st Century Nanoscience - A Handbook: Low-Dimensional Materials and Morphologies (Volume 4) will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics by the same editor published in the fall of 2010 and was embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. This fourth volume in a ten-volume set covers low-dimensional materials and morphologies. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanophysics extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.
Author: Guigen Zhang
Publisher: CRC Press
ISBN: 1466517565
Category : Medical
Languages : en
Pages : 508
Get Book Here
Book Description
Arguably the first book of its kind, Computational Bioengineering explores the power of multidisciplinary computer modeling in bioengineering. Written by experts, the book examines the interplay of multiple governing principles underlying common biomedical devices and problems, bolstered by case studies. It shows you how to take advantage of the la
