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Low-Programmable-Voltage Nonvolatile Memory Devices Based on Omega-shaped Gate Organic Ferroelectric P(VDF-TrFE) Field Effect Transistors Using p-type Silicon Nanowire Channels

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Nano-Micro Letters 2015年第1期7卷 35-41页

作者： Ngoc Huynh Van Jae-Hyun Lee Dongmok Whang Dae Joon Kang Department of Physics Institute of Basic SciencesSungkyunkwan University School of Advanced Materials Science and Engineering SKKU Advanced Institute of Nanotechnology Sungkyunkwan University

A facile approach was demonstrated for fabricating high-performance nonvolatile memory devices based on ferroelectric-gate field effect transistors using a p-type Si nanowire coated with omega-shaped gate organic ferroelectric poly(vinylidene fluoride-trifluoroethylene)(P(VDF-Tr FE)). We overcame the interfacial layer problem by incorporating P(VDF-Tr FE) as a ferroelectric gate using a low-temperature fabrication process. Our memory devices exhibited excellent memory characteristics with a low programming voltage of ±5 V, a large modulation in channel conductance between ON and OFF states exceeding 105, a long retention time greater than 3 9 104 s, and a high endurance of over 105 programming cycles while maintaining an ION/IOFFratio higher than 102.

关键词： Si nanowires Field effect transistor Ferroelectric memory

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Colourimetric redox-polyaniline nanoindicator for in situ vesicular trafficking of intracellular transport

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Nano Research 2015年第4期8卷 1169-1179页

作者： Eun Bi Choi Jihye Choi Seo Ryung Bae Hyun-Ouk Kim EunjiJang Byunghoon Kang Myeong-Hoon Kim Byeongyoon Kim Jin-Suck Suh Kwangyeol Lee Yong-Min Huh Seungjoo Haam Department of Chemical and Biomolecular Engineering College of Engineering Yonsei University Seou1120-749 Republic of Korea Department of Radiology College of Medicine Yonsei University Seou1120-752 Republic of Korea Department of Chemistry Korea University Seou1136-701 Republic of Korea

小囊的 pH 调制许多细胞器的功能并且在象增长和 apoptosis 那样的房间新陈代谢过程起一个枢轴的作用。这里，我们介绍简单比色的 redox-polyaniline nanoindicator，它能检测并且确定有与采用荧光 resonance-energy-transfer 的一个维... 详细信息

小囊的 pH 调制许多细胞器的功能并且在象增长和 apoptosis 那样的房间新陈代谢过程起一个枢轴的作用。这里，我们介绍简单比色的 redox-polyaniline nanoindicator，它能检测并且确定有与采用荧光 resonance-energy-transfer 的一个维的刺激的预先的 trafficking 代理人相比的优异敏感的一个更宽广的源於生物的 pH 范围(烦恼) 信号。我们制作了基于 polyaniline 的 nanoprobes，它根据质子层次展出了可改变的转变状态，作为一在里面小囊的运输 pH 的 situ 指示物。硅石涂的 Fe 3 O 4 -MnO heterometal nanoparticles 是 synthesised 并且作为金属氧化剂利用了到 polymerise 苯胺单体。最后，有吸附的花青染料 fluorophores Cy3 和 Cy7 的硅石涂的 polyaniline nanoparticles (FPSNI Cy3 和 FPSNI Cy7 ) 作为质子敏感的 nanoindicators 被制作。由小囊的运输的本地 pH 变化由于选择熄灭导致了， FPSNI Cy3 和 FPSNI Cy7 表明了优秀细胞内部的 trafficking 并且提供了极小的质子层次的敏感光指示。

关键词：囊泡运输氧化还原聚苯胺比色原位荧光共振能量转移 pH调节二氧化硅

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Macroscopic Ag nanostructure array patterns with high-density hotspots for reliable and ultra-sensitive SERS substrates

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Nano Research 2019年第10期12卷 2554-2558页

作者： Taeksu Lee Soongeun Kwon San ghee Jung Hyungjun Lim Jae-Jong Lee Department of Nano Manufacturing Technology Korea Institute of Machinery and Materials(KIMM)156 Gajeongbuk-RoYuseong-GuDaejeon 34103Republic of Korea

Syn thesis of metal nano structures arrays with large amounts of small nano-gaps on a homoge nous macroscale is of significant in terest and importa nee in chemistry,biotech no logy,physics,and nan otech no logy because of their enhan ced ***,the fabricatio n of uncovered nano-gaps with high-density and uniformity is rather difficult due to the complex and multiple synthetic *** this research,a facile and low-cost approach is demonstraind for the synthesis of high-density small nano-gaps(about 3.4 nm)between silver nanostructure array patter ns(SNAPs)over a large *** nan o?hole patter ns were periodically gen erated over an entire substrate using nano-impri nt *** reacti on at the high over-potential produced multiple silver nano crystals inside the nano-hole patter ns,gen erati ng a high-de nsity of small and un covered ***,we fully dem on strate their applicati on in the rapid detectio n of rhodamine 6G(R6G)molecules by surface-enhaneed Raman scattering(SERS)spectroscopy with a very low detection limit(1 fM)as well as excellent signal uniformity(RSD<8.0%±2.5%),i ndicati ng an extra ordinary capability for single-molecule detecti on.

关键词： nanoImprint lithography surface-enhanced Raman scattering(SERS)spectroscopy electrodeposition nano patterning gold silver

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Synthesis,Properties,and Biological Application of Perfect Crystal Gold Nanowires:A Review

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Journal of Materials Science & Technology 2015年第6期31卷 573-580页

作者： Mijeong Kang Hyoban Lee Taejoon Kang Bongsoo Kim Department of Chemistry KAISTDaejeon 305-701Korea bionanotechnology Research center and bionano health guard Research center

In the last decade,numerous kinds of nanoscale materials have been *** characteristics are critically influenced by their synthetic or fabrication *** this review article,we introduce perfect crystal gold nanowires(Au NWs) synthesized by vapor transport method and summarize their material properties and biological ***-crystalline Au NWs having no defects or twins show unique mechanical,electrical,and electrochemical ***,they are exceptionally competent in penetrating cells or tissues with minimum biological damage and in the electrical analysis and manipulation of biological activities in the cells and/or *** is expected that the Au NWs would give us technological breakthrough in diverse applications such as nanoscale functional components as well as new insights in fundamental material science.

关键词： Nanomaterials Nanostructured metallic materials Na

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