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2010 3rd International Nanoelectronics Conference (INEC)最新文献

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Large-scale synthesis of Sb2S3 spikes by hydrothermal reaction 水热反应大规模合成Sb2S3尖晶
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5425105
C. Pilapong, T. Thongtem, S. Thongtem
Spikes of Sb2S3 (antimony sulfide) were synthesized by hydrothermal reaction at 100–200 °C for 6–48 h. By using X-ray diffraction (XRD), selected area electron diffraction (SAED), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM) and UV-vis absorption spectroscopy, the products were specified as orthorhombic Sb2S3 in the shape of spikes, with their growths in the [001] direction and Eg of 5.40 eV. A diffraction pattern was also simulated, and was in good accordance with the SAED pattern obtained from the experiment.
在100-200℃条件下,水热反应6-48 h合成Sb2S3(硫化锑)的峰状产物。通过x射线衍射(XRD)、选择区域电子衍射(SAED)、场发射扫描电镜(FE-SEM)、透射电镜(TEM)、高分辨率透射电镜(HRTEM)和紫外-可见吸收光谱分析,产物确定为呈峰状的正交Sb2S3,其生长方向为[001],Eg为5.40 eV。模拟了衍射图,与实验得到的SAED图吻合较好。
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引用次数: 0
Study on the fabrication and characterization of a novel n-HA/mulit-(animo acid) compolymer Composite 一种新型n-HA/多(氨基酸)聚合物的制备及表征研究
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5425062
Hong Li, G. Lv, J. Nan, Yonglei Liu, Xiaoman Luo, Yonggang Yan
A novel nano-hydroxyapatite/multi-(amino acid) copolymer (n-HA/MACP) composite was prepared by in situ polymerization and characterized by FT-IR XRD, mechanical measurement, in vitro degradation experiments and cell growth behavior. FT-IR and XRD results showed that the composite was composed of n-HA and an amide linkage structure and hydrogen bond was formed between n-HA and the copolymer. The composite showed different compressive strength of 176–263MPa, varying with the n-HA content in it. A 24-week incubation in phosphate buffered saline exhibited that the composite was degradable with the weight loss of 20.7wt% and the degradation showed no significant effects on the pH of the soaking medium.
采用原位聚合法制备了一种新型纳米羟基磷灰石/多(氨基酸)共聚物(n-HA/MACP)复合材料,并通过FT-IR XRD、力学测量、体外降解实验和细胞生长行为对其进行了表征。FT-IR和XRD结果表明,复合材料由n-HA组成,具有酰胺键结构,n-HA与共聚物之间形成氢键。复合材料抗压强度随n-HA含量的变化而变化,强度在176 ~ 263mpa之间。在磷酸盐缓冲盐水中孵育24周,表明该复合材料可降解,重量减轻20.7wt%,并且降解对浸泡介质的pH值没有显著影响。
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引用次数: 0
Photoelectric Properties of Novel Conjugated Copolymers Based on 3, 4-Ethylenedioxythiophene and π-deficient aromatic rings 基于3,4 -乙烯二氧噻吩和缺π芳环的新型共轭共聚物的光电性质
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424873
De‐Lin Wu, Bo Shen, Li‐Min Liu, Guoyuan Lu, T. He, Qiang Zhang, Changshun Wang
Four novel donor-accepter (D-A) conjugated polymers based on 3, 4- ethylenedioxythiophene and electron-deficient heterocycle rings were prepared, they have strong tendency to form self-assembled structure in the solid state, which is revealed by X- ray diffraction (XRD) patterns of them in powder. The UV-vis absorption spectroscopy, fluorescence emission spectroscopy and cyclic voltammertry studies suggest that the copolymers are expected to provide enhanced charge-transporting properties for the development of efficient electroluminescent materials. Furthermore, the third-order NLO measurements made with the single-beam Z-scan technique indicate that the copolymers have good third-order NLO response and are desired materials for fabricating nonlinear photonic devices.
以3,4 -乙烯二氧噻吩和缺电子杂环为基料制备了4种新型的给受体共轭聚合物(D-A),它们在粉末中的X射线衍射(XRD)图表明,它们在固体状态下具有很强的自组装倾向。紫外-可见吸收光谱、荧光发射光谱和循环伏安法研究表明,共聚物有望为高效电致发光材料的开发提供增强的电荷传输性能。此外,用单束z扫描技术进行的三阶NLO测量表明,共聚物具有良好的三阶NLO响应,是制造非线性光子器件的理想材料。
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引用次数: 0
Novel all-optical logic gate using an add-drop filter and intensity switch 新型全光逻辑门采用加降滤波器和强度开关
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424664
T. Threepak, S. Mitatha, P. Yupapin
We propose new system of an all-optical AND gate and inverter that can be used to generate logic operation result by using a short pulse laser input. A system consists of an add-drop optical filter and an intensity switch that can be integrated into a single system. We have successfully simulated AND gate and inverter. Results obtained have shown that they can be used in terms of truth tables satifaction. Furthermore, the DeMorgan theory can be applied to produce other logic operations. For furture work, we can construct all optical routers that operate switching and routing method in an optical layer.
我们提出了一种新的全光与门和逆变器系统,可以使用短脉冲激光输入来产生逻辑运算结果。该系统由一个可集成到单个系统中的附加滤光片和一个强度开关组成。我们成功地模拟了与门和逆变器。结果表明,它们可以用于真值表的满足。此外,DeMorgan理论还可以应用于产生其他逻辑运算。在未来的工作中,我们可以构建在一个光层中操作交换和路由方法的所有光路由器。
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引用次数: 3
Graphene nanosheet counter-electrodes for dye-sensitized solar cells 染料敏化太阳能电池用石墨烯纳米片反电极
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424743
D. Zhang, X. D. Li, S. Chen, H. B. Li, Z. Sun, X. Yin, S. M. Huang
Graphene nanosheets (GNs) have been investigated as a counter electrode for dye-sensitized solar cells (DSCs). Mesoporous TiO2 films are prepared from the commercial TiO2 nano-powders by screen-printing technique on fluorine-doped tin oxide (FTO) slides. GNs are applied to substitute for platinum as counter-electrode materials. GN films are screen printed on FTO glass using a paste based on GNs dispersed in a mixture of terpineol and ethylcellulose. GN counter-electrodes were prepared by annealing the GN films at different temperatures. A metal-free organic dye (indoline dye D102) is used as a sensitizer. Morphological and electrochemical properties of the formed counter-electrodes are investigated by scanning electronic microscopy and electrochemical impedance spectroscopy (EIS), respectively. The electronic and ionic processes in platinum and GNs based DSCs are analysized and discussed. A conversion efficiency of 2.94 % has been obtained for GNs based DSCs. It is found that the quality of the GN counter-electrode and the photovoltaic performance are strongly affected by the annealing temperature of GN materials.
石墨烯纳米片(GNs)作为染料敏化太阳能电池(dsc)的对电极进行了研究。采用丝网印刷技术在掺氟氧化锡(FTO)载玻片上制备了介孔TiO2薄膜。GNs被用于替代铂作为对电极材料。GN薄膜是用分散在松油醇和乙基纤维素混合物中的GN浆料在FTO玻璃上丝网印刷的。通过在不同温度下对GN薄膜进行退火,制备了GN反电极。使用无金属有机染料(吲哚染料D102)作为敏化剂。利用扫描电镜和电化学阻抗谱(EIS)研究了制备的反电极的形态和电化学性能。对铂基dsc和GNs基dsc的电子和离子过程进行了分析和讨论。GNs基dsc的转换效率为2.94%。研究发现,GN材料的退火温度对GN对电极的质量和光伏性能有很大影响。
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引用次数: 16
A luminescent nano-scale metal-organic framework for sensing small molecules 用于传感小分子的发光纳米级金属有机框架
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424708
Hui Xu, Zhongshang Dou, Yuanjing Cui, Banglin Chen, G. Qian
A nano-scale metal-organic framework Eu(BDC)1.5(H20)2 was synthesized in a reverse microemulsion system. Scanning electron micrographic (SEM) showed that they were nanorods with 100∼200nm in length by 25nm in diameter. Sensing experiments were carried out to examine the potential of Eu(BDC)1.5(H20)2 for sensing small molecules such as acetonitrinile and acetone. The luminescent intensity was largely dependent on the solvent molecules in the case of acetonitrinile and acetone, which showed no significant change and quenching effects respectively. The result indicated that Eu(BDC)1.5(H20)2 could be developed for the sensing of acetone solvent molecules. Research on the sensing of other small molecules is still underway.
在反相微乳液体系中合成了纳米级金属有机骨架Eu(BDC)1.5(H20)2。扫描电镜(SEM)显示它们是长100 ~ 200nm,直径25nm的纳米棒。通过传感实验考察了Eu(BDC)1.5(H20)2对乙腈、丙酮等小分子的传感能力。在乙腈和丙酮的情况下,发光强度很大程度上依赖于溶剂分子,分别表现出不明显的变化和猝灭效应。结果表明,Eu(BDC)1.5(H20)2可用于丙酮溶剂分子的传感。对其他小分子的传感研究仍在进行中。
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引用次数: 0
Indentation creep and hardness of a Sn-Ag-Cu solder reinforced with Ni-coated carbon nanotubes 镀镍碳纳米管增强Sn-Ag-Cu钎料的压痕蠕变和硬度
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424643
Y.D. Han, H. Jing, S. Nai, L.Y. Xu, C. Tan, J. Wei
In the present study, the powder metallurgy route was used to successfully incorporate Ni-coated carbon nanotubes into Sn-Ag-Cu solder, to form a nanocomposite solder. The creep behavior and hardness of composite and Sn-Ag-Cu solder samples were studied using the Berkvich depth-sensing indentation at room temperature. Characterization results revealed that with increasing addition of Ni-coated carbon nanotubes, an increasing improvement in the creep behavior of composite solder was observed. Moreover, the results also showed that the nanoindentation hardness increased by 18.1% with the incorporation of 0.03 wt.% of Ni-coated CNTs.
本研究采用粉末冶金方法成功地将ni包覆碳纳米管掺入Sn-Ag-Cu钎料中,形成纳米复合钎料。采用Berkvich深度感测压痕研究了复合材料和Sn-Ag-Cu钎料样品在室温下的蠕变行为和硬度。表征结果表明,随着ni包覆碳纳米管添加量的增加,复合钎料的蠕变性能得到了显著改善。此外,结果还表明,当添加0.03 wt.%的ni包覆CNTs时,纳米压痕硬度提高18.1%。
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引用次数: 2
Ce-doped ZnO nanorods by electrodeposition 电沉积法制备ce掺杂ZnO纳米棒
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424805
F. Fang, A. Ng, X. Chen, A. Djurišić, W. Chan
We have investigated the use of different cerium precursors for fabrication of Ce:ZnO nanorods by electrodeposition. ZnO nanorods fabricated with different Ce precursors had similar morphology, but very different optical properties. The influence of annealing in oxygen at different temperatures on the optical properties of Ce:ZnO nanorods was also studied.
我们研究了不同的铈前驱体在电沉积制备Ce:ZnO纳米棒中的应用。不同Ce前驱体制备的ZnO纳米棒具有相似的形貌,但光学性质差异很大。研究了不同温度下氧退火对Ce:ZnO纳米棒光学性能的影响。
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引用次数: 1
Study on the technological conditions of nanoscale silver palmitate 纳米棕榈酸银制备工艺条件的研究
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424786
Yaling Li, Shui Wang, Xiaoling Yang, Xu Zhang
In order to supply high quality silver source to photothermographic materials based on silver carboxylate, silver plamitate was prepared by chemical deposition method using palmitic acid, sodium hydroxide, silver nitrate as raw materials and PVP as surfactant. The effects of experimental conditions such as reaction system, reaction temperature, reactant concentration and amount of PVP were investigated. The morphology and dispersed properties were characterized by scanning electron microscopy (SEM). The crystal structure and thermal properties of silver palmitate were characterized by X-ray powder diffraction (XRD), differential scanning calorimetry (DSC) and Thermogravimetry(TG). A set of suitable operating parameters (concentration of palmitic acid of 0.05mol/L, reaction temperature of 75°C, PVP of 0.05g and prepared in water-alcohol system) for the preparation of silver palmitate were recommended. Under these optimum conditions, well-dispersed silver palmitate with well-defined layer structure was obtained. The diameter of fiber-like silver palmitate is about 150nm. DSC curves demonstrate that silver palmitate has multiple phase transitions.
为了给基于羧酸银的光热成像材料提供高质量的银源,以棕榈酸、氢氧化钠、硝酸银为原料,以PVP为表面活性剂,采用化学沉积法制备了铂酸银。考察了反应体系、反应温度、反应物浓度和PVP用量等实验条件对反应性能的影响。用扫描电镜(SEM)对其形貌和分散性进行了表征。采用x射线粉末衍射(XRD)、差示扫描量热法(DSC)和热重法(TG)对棕榈酸银的晶体结构和热性能进行了表征。推荐了棕榈酸银制备的适宜操作参数(棕榈酸浓度为0.05mol/L,反应温度为75℃,PVP为0.05g,水醇体系制备)。在此条件下,得到了分散良好、层状结构清晰的棕榈酸银。纤维状棕榈酸银的直径约为150nm。DSC曲线表明棕榈酸银具有多个相变。
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引用次数: 0
Growth and characterization of Ni3FeN thin films by reactive gas timing RF magnetron sputtering 反应气体定时射频磁控溅射制备Ni3FeN薄膜及表征
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424982
W. Techitdheera, C. Thassana, W. Pecharapa, J. Nukaew
Ni3FeN films were deposited on the glass substrate at room temperature by reactive gas timing rf magnetron sputtering, with two conditions: (1) a time period of Ar∶N2 gas (2) a flow rate of Ar∶N2 gas. Our results show that sputter rate increase with increasing of a time period and the rate of Ar∶N2 gas. The crystal structure of thin films was investigated by x-ray diffraction show fcc structure of Ni3FeN (200) plane. The lattice constants increase with increasing of the flow rate of the nitrogen gas but it decrease with increasing of a time period of Ar gas. The grain size of thin films were investigated by atomic force microscope show the size range between 20 – 120 nm.
采用反应气体定时射频磁控溅射的方法,在室温条件下在玻璃基板上沉积Ni3FeN薄膜,条件为:(1)Ar∶N2气体的时间周期(2)Ar∶N2气体的流速。结果表明,溅射速率随时间的增加和Ar∶N2气体掺量的增加而增加。用x射线衍射研究了薄膜的晶体结构,发现了Ni3FeN(200)平面的fcc结构。晶格常数随氮气流速的增大而增大,随氩气流速的增大而减小。用原子力显微镜观察了薄膜的晶粒尺寸,晶粒尺寸范围在20 ~ 120 nm之间。
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引用次数: 0
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2010 3rd International Nanoelectronics Conference (INEC)
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