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

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Organic-inorganic hybrid circuit with organic memory and MOSFET 具有有机存储器和MOSFET的有机-无机混合电路
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424695
Xinghua Liu, Z. Ji, Deyu Tu, Liwei Shang, Ming Liu, Changing Xie
In this paper, the organic-inorganic hybrid circuit is demonstrated with the sandwiched structure of Au/poly(3,4-ethylene-dioxythiophene): polystyrenesulfonate/Au organic memory device and N-type MOSFET for nonvolatile memory application. The MOSFET is fabricated with 0.13-µm CMOS technology. One transistor and one resistor (1T–1R) structure is fabricated in this hybrid circuit, in which the transistor is used as a select cell to limit the compliance current. The compliance current is determined by the transistor's gate voltage, resulting in the control of electrical resistance of the filamentary conductive paths in the low resistive state. The resistive ratio between the ON- and OFF-state is on the order of 103.
本文以Au/聚(3,4-乙烯-二氧噻吩)、聚苯磺酸盐/Au有机存储器件和n型MOSFET为夹层结构,演示了用于非易失性存储的有机-无机杂化电路。该MOSFET采用0.13µm CMOS工艺制造。在这种混合电路中制造了一个晶体管和一个电阻(1T-1R)结构,其中晶体管用作限制顺应电流的选择单元。顺应电流由晶体管的栅极电压决定,从而在低阻状态下控制丝状导电路径的电阻。ON-和off状态之间的电阻比约为103。
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引用次数: 0
Dynamic optical tweezers: Experiment 动态光镊:实验
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424872
S. Mitatha, S. Noppanakeepong, J. Ali, P. Yupapin
We have experimentally generated the optical tweezers in the form of a dark soliton pulse using the Stimulated Brillouin Scattering (SBS) system. This is the first time ever found on the use of the highly intense pulse in the form of a dark soliton to perform the dynamic light trapping probe known as a “dynamic optical tweezers”. The advantage of the generated tweezers is that it can be used to transmit and transport the trapping atom/molecule into the optical device and communication network, which can be claimed as the dynamic optical tweezers transportation, for used in many frontier applications. The multi-optical tweezers generated, with high capacity regime can then be used for multi-optical tweezers transmission. The various applications to form the frontier research using photon, atom, molecule, DNA, electron and ion trapping for atomic tools, tiny synchrotron, molecular networks, bottom up atom/molecule assembly, ozone repair etc. are described. The experimental details and model of the optical tweezers generation and related characteristics are described. The interesting simulation results of a dark soliton generation for the optical tweezers are also analyzed and discussed in various applications.
我们利用受激布里渊散射(SBS)系统实验产生了暗孤子脉冲形式的光镊。这是有史以来第一次发现使用高强度脉冲以暗孤子的形式来执行被称为“动态光镊”的动态光捕获探针。所生成的光镊的优点是可以将捕获的原子/分子传输到光器件和通信网络中,可称为动态光镊传输,可用于许多前沿应用。所产生的多光镊具有高容量,可用于多光镊传输。介绍了光子、原子、分子、DNA、电子和离子捕获在原子工具、微型同步加速器、分子网络、自下而上的原子/分子组装、臭氧修复等方面形成前沿研究的各种应用。描述了光镊产生的实验细节和模型及其相关特性。文中还分析和讨论了光镊产生暗孤子的有趣模拟结果。
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引用次数: 1
Enhanced wet etching of patterned GaN with heavy-ion implantation 重离子注入增强氮化镓图像化的湿法刻蚀
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424943
Yuan Gao, C. Lan, J. Xue, Sha Yan, Yugang Wang, F. Xu, B. Shen
We present the enhanced wet etching of GaN epilayer implanted with Au+ ion. Patterned GaN with 2µm-wide sink-like strips was achieved by using 500 keV Au+ ion implantation and KOH etching. The Dependence of etching depth on etching time for the implantation at different ion fluences was investigated. Erosion of GaN surface was obvious with implantation at the fluence of 3×1016 cm−2. The experiment showed that the damaged GaN area could be completely etched out at high ion fluence, and the etching depth could exceed the project range of incident 500 keV Au+ ion. The ∼400nm depth etching could be achieved with high fluence implantation and a long etching time, and the edge of etched area could remain clear until the etching process passes 80 mins. As-deposited SiO2 spheres were used to mask the GaN sample in implantation process to investigate the etching effect. ∼70nm wave of the GaN surface was observed. The results of our experiments may suggest an approach to the fabricating of GaN devices.
本文研究了注入Au离子的氮化镓涂层的增强湿法刻蚀。采用500 keV的Au+离子注入和KOH蚀刻,获得了2 μ m宽的槽状条带的图像化GaN。研究了在不同离子影响下注入的蚀刻深度与蚀刻时间的关系。在3×1016 cm−2的影响下,氮化镓表面腐蚀明显。实验表明,在高离子影响下,损伤的GaN区域可以完全蚀刻出来,蚀刻深度可以超过入射500 keV Au+离子的规划范围。在高通量注入和较长的蚀刻时间下,可以实现~ 400nm深度的蚀刻,并且蚀刻区域的边缘可以保持清晰,直到蚀刻过程通过80 min。在注入过程中,用沉积的SiO2球掩盖GaN样品,研究其蚀刻效果。观察到GaN表面的~ 70nm波。我们的实验结果可能为GaN器件的制造提供了一种方法。
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引用次数: 0
Study on the changes of surface property of grown C-TiO2 films by O2 plasma treatment O2等离子体处理C-TiO2薄膜表面性能变化的研究
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5425025
K. Lee, Sang-Hun Nam, H. Seo, Sang Duck Lee, Y. D. Kim, J. Boo
In the previous work, we reported that TiO2 nanorods could be successfully grown on Ta substrates using titanium tetra isopropoxide (TTIP) as a single precursor without any carriers or bubbling gases. In the mean time, columnar-structured C doped TiO2 was grown on glass substrates by MOCVD method. For change of surface properties, grown columnar-structured C-TiO2 was treated by O2 plasma. After O2 plasma treatment, the surface property of grown columnar-structured C-TiO2 changed from hydrophobic surface to super hydrophilic surface. For determination of this mechanism, scanning electron microscopy (SEM), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), FT-IR spectroscopy, and contact angle analyzer were employed.
在之前的工作中,我们报道了使用四异丙醇钛(TTIP)作为单一前驱体,在没有任何载体或鼓泡气体的情况下,可以成功地在Ta衬底上生长TiO2纳米棒。同时,采用MOCVD方法在玻璃衬底上生长出柱状结构的C掺杂TiO2。为了改变C-TiO2的表面性能,采用O2等离子体处理生长的柱状结构C-TiO2。经过氧等离子体处理后,生长的柱状结构C-TiO2的表面性能由疏水表面转变为超亲水表面。采用扫描电镜(SEM)、x射线衍射(XRD)、x射线光电子能谱(XPS)、傅里叶变换红外光谱(FT-IR)和接触角分析仪等方法对其机理进行了分析。
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引用次数: 0
Dielectric properties of binary BaTiO3/PVDF and graphite doped GN/BaTiO3/PVDF nanocomposites 二元BaTiO3/PVDF和石墨掺杂GN/BaTiO3/PVDF纳米复合材料的介电性能
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424635
Yuchao Li, R. K. Li, S. Tjong
Binary BaTiO3/PVDF nanocomposites and its nanographite (GN) doped ternary hybrids were fabricated using simple solution casting and hot compression molding. The dielectric behavior of such hybrids over a wide frequency range was studied. Additions of graphite nanosheets with their concentrations close to percolation threshold were found to be very effective to enhance the dielectric permittivity of GN/BaTiO3/PVDF nanocomposites. Furthermore, both dielectric constant and electrical conductivity of hybrids displayed strong frequency and temperature dependence.
采用简单溶液铸造和热模压法制备了BaTiO3/PVDF二元纳米复合材料及其掺杂纳米石墨(GN)的三元杂化物。研究了这种杂化材料在宽频率范围内的介电性能。在GN/BaTiO3/PVDF纳米复合材料中添加浓度接近渗透阈值的石墨纳米片,可以有效提高其介电常数。此外,混合材料的介电常数和电导率均表现出较强的频率和温度依赖性。
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引用次数: 0
Grystal growth and photoluminescence properties of Eu3+-doped Y3Al5O12 nanocrystals by high-energy ball milling 高能球磨法制备Eu3+掺杂Y3Al5O12纳米晶的晶体生长及光致发光性能
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424476
H. Yang, Jong Won Chung, Soung Wook Park, J. Jeong, K. Jang, Hongye Li, S. Yi
Y3Al5O12:Eu3+ powders were synthesized by a high-energy ball mill and characterized. The effects of the crystal size on the crystallinity, morphology, structure and luminescence spectra were investigated by X-ray diffraction, field emission-scanning electron microscopy and photoluminescence spectroscopy (PL). Compared to the solid state reaction method, synthesis by high-energy ball milling is simple, easy to carry out, and the raw materials are commercially available.
采用高能球磨机合成了Y3Al5O12:Eu3+粉体,并对其进行了表征。采用x射线衍射、场发射扫描电镜和光致发光光谱(PL)研究了晶体尺寸对结晶度、形貌、结构和发光光谱的影响。与固相反应法相比,高能球磨法合成工艺简单,易于实施,原料可商品化。
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引用次数: 0
Relationship between electrical properties and structure for modified poly(3-hexylthiophene) copolymer thin films 改性聚(3-己基噻吩)共聚物薄膜电性能与结构的关系
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424648
M. Sittishoktram, U. Asawapirom, T. Osotchan
Relationship between the changing in structure and the electrical properties of modified poly(3-hexylthiophene) (P3HT) was examined. For modified P3HT two types of acceptor molecules including 1,4-Bis(5-brothien-2-yl)-2,3,5,6-tetrafluoro benzene (TFT) and 2,1,3-benzothiadiazole (Bz) were added into the main chain of P3HT. These modifications have the effect to molecular ordering of modified polymer thin film. The structural and optical characteristics of modified polymer were investigated by X-ray diffraction (XRD) and UV-visible absorption spectroscopy. By comparing to characteristic of pristine P3HT, the XRD pattern of modified polymer showed the shift of diffraction peak with decrease in intensity. These indicate that modified polymer chain reduced in structural coplanarity and crystallinity. Since the electrical property relates to the morphology and structure of thin film, the I-V characteristic of modified polymer thin film was measured with aluminum electrode and the results show the decrease in current relative to that in pristine P3HT. Furthermore, the mobility of modified polymer was also evaluated by using time of flight measurement with the structure of ITO/modified P3HT/Al at room temperature. The measured mobilities of modified is agree well with the I-V characteristics and this can demonstrate the effect of molecular ordering on its carrier conduction.
研究了改性聚(3-己基噻吩)(P3HT)的结构变化与电性能的关系。在P3HT的主链上加入了1,4-双(5-溴-2-基)-2,3,5,6-四氟苯(TFT)和2,1,3-苯并噻唑(Bz)两类受体分子。这些修饰对改性聚合物薄膜的分子有序性有影响。利用x射线衍射(XRD)和紫外-可见吸收光谱研究了改性聚合物的结构和光学特性。与原始P3HT相比较,改性聚合物的XRD谱图显示,随着强度的降低,衍射峰发生了位移。这表明改性聚合物链的结构共面性和结晶度均有所降低。由于电学性能与薄膜的形貌和结构有关,用铝电极测量了改性聚合物薄膜的I-V特性,结果表明,与原始P3HT相比,改性聚合物薄膜的电流有所降低。在室温下,通过ITO/改性P3HT/Al结构的飞行时间测量来评价改性聚合物的迁移率。改性后的迁移率与I-V特性吻合较好,证明了分子有序度对载流子传导的影响。
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引用次数: 0
Structural characterization and field emission of stacked-cone GaN nanorods 叠锥GaN纳米棒的结构表征与场发射
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424952
Chun Li, Yang Huang, Y. Bando, D. Golberg
The stacked-cone morphology GaN nanorods with diameters of 100–400 nm and lengths of tens of micrometers were synthesized by metal-catalyzed chemical vapor deposition. The stacked-cone GaN nanorods possessed dominated hexagonal crystalline structure with growth direction along [0001]. TEM analysis showed that the top tip had a bicrystal structure of hexagonal and cubic phases, while the stem and side tip had single hexagonal phase. Room temperature field emission test showed the turn-on field was 8.9 V/µm at 0.1 µA/cm2 and current density was about 0.1 mA/cm2 at 14.2 V/µm at a vacuum gap of 70 µm. The field enhancement factor β and anode-cathode gap d follows a universal equation. The simple synthesis method and good emission properties imply their potential application in vacuum microelectronic.
采用金属催化化学气相沉积法制备了直径为100 ~ 400 nm、长度为数十微米的叠锥状GaN纳米棒。叠锥GaN纳米棒具有主导的六方晶体结构,生长方向沿[0001]。TEM分析表明,顶尖为六方相和立方相的双晶结构,而茎尖和侧尖为单六方相。室温场发射测试表明,在0.1µA/cm2下,导通场为8.9 V/µm,在70µm真空间隙下,14.2 V/µm电流密度约为0.1 mA/cm2。场增强因子β和阳极阴极间隙d遵循一个通用方程。合成方法简单,发射性能好,在真空微电子领域具有广阔的应用前景。
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引用次数: 0
Optical and FTIR studies of CdSe quantum dots CdSe量子点的光学和FTIR研究
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5425142
N. Hamizi, M. Johan
CdSe colloidal nanocrystals (∼3.4 nm) with zinc blende structure were synthesized at low temperature and at different reaction time via inverse micelle technique. CdSe QDs FTIR spectra show the existence of cadmium selenide compound and long alkane chains solvents. The Cd-Se band stretching can be observed at ∼722 cm−1. All other peaks are corresponding to the structural bond of oleic acid and paraffin oil with cadmium selenide QDs e.i ∼1377, 1463, 2853, 2924 and 2953 cm−1. CH3 bending deformed behaviour can be observed at ∼1377 cm−1 and CH2 bending band behaviour at ∼1463 cm−1. Also the present of CH2 stretching at ∼2853, 2924 and 2953 cm−1. The presence of peak at ∼1712 cm−1 proof of capping of as-prepared CdSe QDs by oleic acid. Interestingly, there is no peak observed at ≫3000 cm−1 compared to FTIR spectra of CdSe QDs prepared by TOP based route that confirmed the elimination of hydroxide and amine group from non-TOP based route CdSe QDs samples. From this study, it also can be observed that almost all existed peak in FTIR spectra shows slightly shifting behaviour toward larger wavenumber as the crystal size increases.
采用逆胶束技术,在低温和不同反应时间下合成了具有闪锌矿结构的CdSe胶体纳米晶体(~ 3.4 nm)。CdSe QDs FTIR光谱显示了硒化镉化合物和长链烷烃溶剂的存在。Cd-Se能带在~ 722 cm−1处被拉伸。所有其他峰对应于油酸和石蜡油与硒化镉QDs的结构键,即~ 1377、1463、2853、2924和2953 cm−1。在~ 1377 cm−1可以观察到CH3的弯曲变形行为,在~ 1463 cm−1可以观察到CH2的弯曲带行为。CH2在~ 2853、2924和2953 cm−1处也有伸展。在~ 1712 cm−1处存在峰,证明制备的CdSe量子点被油酸覆盖。有趣的是,与TOP方法制备的CdSe量子点的FTIR光谱相比,在< 3000 cm−1 >处没有观察到峰,这证实了非TOP方法制备的CdSe量子点样品中消除了氢氧化物和胺基。从本研究还可以观察到,随着晶体尺寸的增大,FTIR光谱中几乎所有存在的峰都表现出轻微的向较大波数偏移的行为。
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引用次数: 12
A large gap of Ar and mixed gas at atmospheric pressure RF-DBD glow discharges 氩气和混合气体在常压下有较大的间隙,RF-DBD辉光放电
Pub Date : 2010-03-04 DOI: 10.1109/INEC.2010.5424652
B. Li, Q. Chen, Z. Liu, Z. Wang
In this study, a large gap of the distance between electrodes (≫5.5 mm) of Ar atmospheric pressure glow discharge (APGD) in radio frequency dielectric barrier discharges (RF-DBD) is achieved. The I-V characteristic and I-phase angle characteristic of RF-DBD are studied in detail. The discharge characteristic of Ar mixed with N2, O2 and Air, respectively, was diagnosed by the optical emission spectrum. The Lissajous plot was measured to calculate the effective power of the discharges. It is obtained that the mixture gas ratio in RF-DBD is seriously affected the discharge stability and the discharge mode. It concludes that this adjustable manufacture of the RF-DBD is capable in wide applications for material modifications and polymerizations.
本研究实现了射频介质阻挡放电(RF-DBD)中氩大气压辉光放电(APGD)的电极间距较大(< 5.5 mm)。详细研究了射频dbd的I-V特性和i相角特性。利用发射光谱分析了Ar分别与N2、O2和Air混合后的放电特性。测量了利萨尤曲线以计算放电的有效功率。研究结果表明,RF-DBD的混合气比严重影响放电稳定性和放电方式。结果表明,这种可调节的RF-DBD在材料改性和聚合方面具有广泛的应用前景。
{"title":"A large gap of Ar and mixed gas at atmospheric pressure RF-DBD glow discharges","authors":"B. Li, Q. Chen, Z. Liu, Z. Wang","doi":"10.1109/INEC.2010.5424652","DOIUrl":"https://doi.org/10.1109/INEC.2010.5424652","url":null,"abstract":"In this study, a large gap of the distance between electrodes (≫5.5 mm) of Ar atmospheric pressure glow discharge (APGD) in radio frequency dielectric barrier discharges (RF-DBD) is achieved. The I-V characteristic and I-phase angle characteristic of RF-DBD are studied in detail. The discharge characteristic of Ar mixed with N2, O2 and Air, respectively, was diagnosed by the optical emission spectrum. The Lissajous plot was measured to calculate the effective power of the discharges. It is obtained that the mixture gas ratio in RF-DBD is seriously affected the discharge stability and the discharge mode. It concludes that this adjustable manufacture of the RF-DBD is capable in wide applications for material modifications and polymerizations.","PeriodicalId":6390,"journal":{"name":"2010 3rd International Nanoelectronics Conference (INEC)","volume":"65 1","pages":"232-233"},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87577428","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
期刊
2010 3rd International Nanoelectronics Conference (INEC)
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