2006 IEEE Conference on Emerging Technologies - Nanoelectronics最新文献

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Piezoresistivity (with uniaxial strain) in nanocrystalline films of rare-earth manganites 稀土锰纳米晶膜的压阻性(单轴应变)
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609751
J. Sarkar, A. Raychaudhuri
{"title":"Piezoresistivity (with uniaxial strain) in nanocrystalline films of rare-earth manganites","authors":"J. Sarkar, A. Raychaudhuri","doi":"10.1109/NANOEL.2006.1609751","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609751","url":null,"abstract":"We present a study of the piezoresistivity in nanostructured polycrystalline films of La<inf>0.67</inf>Ca<inf>0.33</inf>MnO<inf>3</inf>and La<inf>0.67</inf>Sr<inf>0.33</inf>MnO<inf>3</inf>grown on oxidized Si","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134215258","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
Microwave Properties of Fe-based Nanocrystalline Alloy Particles 铁基纳米晶合金颗粒的微波特性
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609702
P. Zhou, L. Deng, J.L. Xie, Y.Q. Liu
{"title":"Microwave Properties of Fe-based Nanocrystalline Alloy Particles","authors":"P. Zhou, L. Deng, J.L. Xie, Y.Q. Liu","doi":"10.1109/NANOEL.2006.1609702","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609702","url":null,"abstract":"Microwave properties of Fe-based nanocrystalline alloy particles mainly depend on the crystal structure and particle morphology. It’s difficult to build up their relationship directly, so magnetic properties are introduced as intermediaries. In this paper, nanocrystalline Fe73.5Cu1Nb3Si13.5B7alloy powders were prepared and tested by the structural, magnetic and microwave measurement. It’s found that besides particle size, the structural properties such as grain size or lattice constant have important influence on the sample’s static magnetic properties, and such influence effectively extends to its complex permeability. Moreover, the exchange coupling and surface-effect were discussed in this issue.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134260350","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
Size Dependent Surface Energy and Surface Tension 尺寸相关的表面能和表面张力
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609683
H.M. Lu, Q. Jiang
{"title":"Size Dependent Surface Energy and Surface Tension","authors":"H.M. Lu, Q. Jiang","doi":"10.1109/NANOEL.2006.1609683","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609683","url":null,"abstract":"A model for size-dependent surface energy of nanocrystals, γ<inf>sv</inf>(D), has been established based on previous models for bulk surface energy γ<inf>sv0</inf>and the size-dependent cohesive energy E(D). Since the structure and energy differences between solid and liquid are small in comparison with those between solid and gas or between liquid and gas, this model can be extended to describe the size dependence of surface tension γ<inf>1v</inf>(D). It is found that γ<inf>sv</inf>(D) and γ<inf>1v</inf>(D) drop monotonically with size in the nanometer region while the surface energy ratio between different facets is size-independent and equals the corresponding bulk one. Moreover, size dependence of Tolman length is also discussed. Modeling predictions agree with the experimental and theoretical results of γ<inf>sv</inf>(D) for beryllium, magnesium, sodium, aluminum and gold, and the computer simulations of γ<inf>1v</inf>(D) for sodium, and aluminum droplets.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131966967","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: 2
New Nanometric Opportunities with High Mobility Semiconductors such as InAs 高迁移率半导体(如InAs)的纳米技术新机遇
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609686
H. Hartnagel
{"title":"New Nanometric Opportunities with High Mobility Semiconductors such as InAs","authors":"H. Hartnagel","doi":"10.1109/NANOEL.2006.1609686","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609686","url":null,"abstract":"One-dimensioned electron gas (1DEG) structures can be fabricated from suitable hetero-structure sandwiches by using nano-technology Schottky- or MOS lithography. We have grown by MBE InAs sandwiched nearly lattice matched between AlSb and GaSb layers and obtained for InAs thicknesses of around 15 nm a room temperature mobility of up to 32000cm2/Vs, provided that the heterojunction was of InSb type. At 77K the electron gas has a mobility of up to 225000 cm2/Vs. Si-Nanowires are found to have an interesting band structure, which is different from Si bulk material. The InAs 1DEG exhibits a quantum-physical behaviour at low temperatures of a reasonable well defined quantized staircase conductance of a ballistic electron wave with increasing applied voltage. InAs is a material where such behaviour is expected to occur at not too low temperature. If two such 1DEG structures of slightly different geometry in parallel are applied with a triangular voltage, the difference potential between each of these two 1DEG’s is a pulse sequence. The number of pulses obtained then depends on the amplitude of the triangular voltage. This can be considered as a basic unit for an Analogue-Digital Converter. These concepts were initially outlined by us at one of the European workshops, intended for discussion of new ideas. Such nano-conductance lines and zero-DEG quantum dot electronic structures can be interconnected in such a manner that various types of signal processing can be achieved.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132740623","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
Nanostructuring surfaces with slow multiply-charged ions 纳米结构表面与缓慢的多重电荷离子
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609739
I. Gebeshuber, R. Smith, S. Pleschko, C. Grünberger, K. Kaska, M. Fuersatz, H. Winter, F. Aumayr
{"title":"Nanostructuring surfaces with slow multiply-charged ions","authors":"I. Gebeshuber, R. Smith, S. Pleschko, C. Grünberger, K. Kaska, M. Fuersatz, H. Winter, F. Aumayr","doi":"10.1109/NANOEL.2006.1609739","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609739","url":null,"abstract":"With the shrinking of semiconductor devices surface features and structuring become increasingly important. Generally, fast ions are used for modification of surfaces via ion beam writing. Their kinetic energy is not only dissipated close to the surface but also in deeper layers of the material. Associated radiation damage could become a problem in the production of novel 3D micro- and nanoelectromechanical systems (MEMS and NEMS). Slow (< 1keV) multiply-charged ions as opposed to fast ions are a new tool for gentler structuring of surfaces at the nanometer-scale. The substrate is modified only at and slightly below the surface, opening the possibility of controlling electronic properties at the nanometer scale, vertically and horizontally. Materials under investigation are highly orientated pyrolytic graphite, single crystal insulators (quartz, mica, aluminum oxide), hydrogen-terminated single-crystal silicon, AsSe- and Se-glass and mylar foils. The materials modified by the ion irradiation are investigated with scanning probe microscopy (AFM, STM) in ultrahigh vacuum and in ambient conditions.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114190372","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
Patterning of Functional Materials by Pulsed Laser Deposition through Nanostencils 脉冲激光沉积纳米模板功能材料的图案化研究
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609730
C. Cojocaru, C. Harnagea, A. Pignolet, F. Rosei
{"title":"Patterning of Functional Materials by Pulsed Laser Deposition through Nanostencils","authors":"C. Cojocaru, C. Harnagea, A. Pignolet, F. Rosei","doi":"10.1109/NANOEL.2006.1609730","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609730","url":null,"abstract":"We present how various features drawn in a miniature shadow-mask (nanostencil) can be efficiently transferred to a surface in the form of 3D nanostructures of metals (Pt, Cr), semiconductors (Ge) or complex oxides (e.g. BaTiO3) by room temperature pulsed laser deposition (PLD) and stenciling. Using the proposed method, there is no aggressive interaction with the substrate, but selective deposition of the material by simply interposing a sieve with apertures down to 100 nm between the deposition source and the substrate. Nanostenciling allows organizing the structures in given architectures, with high accuracy, while reducing drastically the number of processes present in resist-based lithography. The material deposited through the stencil mask conserves the desired functionality even at the level of the individual nanostructures. The patterning process is simple and rapid since it is not implying additional processing steps to the deposition process; it is also parallel, resist-less and without interfering with the structures natural growth dynamics. Nanostenciling can be performed in high or ultra high vacuum and is suitable for parallel prototyping of fragile or functionalized surfaces.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116129029","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
Ferroelectric copolymer P(VDF-TrFE) as gate dielectric in organic field effect transistors for memory application devices 铁电共聚物P(VDF-TrFE)作为存储器应用器件中有机场效应晶体管的栅极介质
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609707
A. Nguyen, P. Lee
{"title":"Ferroelectric copolymer P(VDF-TrFE) as gate dielectric in organic field effect transistors for memory application devices","authors":"A. Nguyen, P. Lee","doi":"10.1109/NANOEL.2006.1609707","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609707","url":null,"abstract":"Fabrication of ferroelectric memory field effect transistor (FEMFET) is presented with copolymer P(VDF-TrFE) as gate dielectric. Spin-coated copolymer film has semi-crystalline structure after annealing, in which the crystallites contains ferroelectric and paraelectric phase. Dipolar alignment in ferroelectric phase is controlled with the sweeping of transistor gate bias. Ferroelectric remanent polarization enables current retention in the transistor during OFF state that can be used in non-volatile memory application.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116929476","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: 3
Sintering of Nano-sized Zirconia Powder Processed by Powder Injection Moulding 粉末注射成型纳米氧化锆粉体的烧结研究
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609700
P. C. Yu, Q.F. Li, J. Fuh
{"title":"Sintering of Nano-sized Zirconia Powder Processed by Powder Injection Moulding","authors":"P. C. Yu, Q.F. Li, J. Fuh","doi":"10.1109/NANOEL.2006.1609700","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609700","url":null,"abstract":"The nano-sized Yttria Stabilized Zirconia (Nano YSZ) powder with an average particles size of 50nm is initially heat treated and then mixed with wax-based binder system. The prepared feedstock is then formed into a shape by powder injection moulding process. The green parts are then thermally debound and sintered. The sintering behavior of the nano-sized particles is presented and compared with those of BASF feedstock. It is found that Nano YSZ can achieve 98% of its theoretical density. Homogenous microstructure is obtained with an average grain size of 500nm. The hardness value of the sintered Nano YSZ is similar to those obtained from BASF feedstock.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122307513","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: 3
Dynamic Study of Planar Focusing for a Microfluidic Cell Sorter 微流控电池分选机平面聚焦的动力学研究
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609743
Z. G. Wu, H. N. Cheang, D. Ghista, A. Liu
{"title":"Dynamic Study of Planar Focusing for a Microfluidic Cell Sorter","authors":"Z. G. Wu, H. N. Cheang, D. Ghista, A. Liu","doi":"10.1109/NANOEL.2006.1609743","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609743","url":null,"abstract":"Planar focusing is widely used in lab-on-a-chip applications and devices. In the previous works, only the steady state was considered for the planar focusing. In this study, a dynamic response of planar focusing is studied using numerical simulation. From our simulation, the response time is various with different inlet velocity and focusing ratio. The results show that at small velocity, the response time is quit short and the velocity magnitude has small influence on response time. Interesting, we also found that the ratio of focusing ratio affect the response time stronger than velocity magnitude. It is useful to design and optimize planar focusing microfluidic cell sorters or other microfluidic devices.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129729614","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
Effect of Super Saturation Level on the size and morphology of Hydroxyapatite precipitate 超饱和度对羟基磷灰石沉淀大小和形态的影响
2006 IEEE Conference on Emerging Technologies - Nanoelectronics Pub Date : 2006-03-27 DOI: 10.1109/NANOEL.2006.1609744
K. Prakash, C. Ooi, R. Kumar, K. Khor, P. Cheang
{"title":"Effect of Super Saturation Level on the size and morphology of Hydroxyapatite precipitate","authors":"K. Prakash, C. Ooi, R. Kumar, K. Khor, P. Cheang","doi":"10.1109/NANOEL.2006.1609744","DOIUrl":"https://doi.org/10.1109/NANOEL.2006.1609744","url":null,"abstract":"Hydroxyapatite (HA) is synthesized through acid-base reaction by adding an aqueous solution of orthophosphoric acid to an aqueous solution of calcium hydroxide maintained at 40, 80 and 100°C. X-ray diffraction of the precipitate particles revealed HA as the predominant phase in all the temperatures and that the morphology of the particles changed from needle-shaped at 40°C to spheroid at 100°C. The changes in the morphology with temperature were analyzed taking into account the driving force for the HA precipitation and the super saturation level of Ca2+and PO43-ions with respect to HA. It appears that the effect of temperature on morphology is less pronounced compared to that of super saturation level. The analysis also indicated that the super saturation level of the reactants, especially the concentration of Ca2+ions, played a predominant role on the precipitate morphology for this classical acid-base reaction.","PeriodicalId":220722,"journal":{"name":"2006 IEEE Conference on Emerging Technologies - Nanoelectronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130879807","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: 11
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