Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751417
Liguo Dai, N. Jiao, Lianqing Liu
Micro-bubbles have been widely used in microfluidic systems. In this paper, we propose a micro-manipulation technique based on opto-thermally generated bubbles in open chip environment. Micro particles can be captured and moved effectively with a bubble by modulating the position of the laser spot. Analysis, simulations and experiments are involved. This technique doesn't require complicated equipment or chip, and is supposed to be applied for micro assembly, particle separation and transmission.
{"title":"Particle manipulation via opto-thermally generated bubbles in open chip environment","authors":"Liguo Dai, N. Jiao, Lianqing Liu","doi":"10.1109/NANO.2016.7751417","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751417","url":null,"abstract":"Micro-bubbles have been widely used in microfluidic systems. In this paper, we propose a micro-manipulation technique based on opto-thermally generated bubbles in open chip environment. Micro particles can be captured and moved effectively with a bubble by modulating the position of the laser spot. Analysis, simulations and experiments are involved. This technique doesn't require complicated equipment or chip, and is supposed to be applied for micro assembly, particle separation and transmission.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"5 1","pages":"30-33"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81923427","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751513
Mahdi Aghadjani, P. Mazumder
In this paper, an analogue-to-digital convertor (ADC) utilizing the single sided spoof surface plasmon polariton (SS-SSPP) waveguide is presented. The proposed ADC device consists of three stages: first stage is the Mach-Zehnder interferometer (MZI) with two arms which acts as a beam steering device, second is free space propagation stage, and third is the detector arrays to convert analog signal into digital input. The SSPP waveguide includes periodic grooves, which are filled with a thin layer of doped semiconductor. In order to alter the refractive index of the semiconductor the depletion mode has been used. It is demonstrated that the ADC can operate with sampling speed around 47 GS/s.
{"title":"THz analog to digital converter using single sided spoof surface plasmon polariton waveguide","authors":"Mahdi Aghadjani, P. Mazumder","doi":"10.1109/NANO.2016.7751513","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751513","url":null,"abstract":"In this paper, an analogue-to-digital convertor (ADC) utilizing the single sided spoof surface plasmon polariton (SS-SSPP) waveguide is presented. The proposed ADC device consists of three stages: first stage is the Mach-Zehnder interferometer (MZI) with two arms which acts as a beam steering device, second is free space propagation stage, and third is the detector arrays to convert analog signal into digital input. The SSPP waveguide includes periodic grooves, which are filled with a thin layer of doped semiconductor. In order to alter the refractive index of the semiconductor the depletion mode has been used. It is demonstrated that the ADC can operate with sampling speed around 47 GS/s.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"9 1","pages":"845-848"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84577304","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751296
X. Wang, Bingcheng Hu, X. Xing
Layer-by-layer (LbL) assembly is a prevalent approach for coating material with functional thin films. In this work, we report on high-efficient antibacterial nanofilms constructed by direct assembly of sodium citrate with synthetic N-halamine precursor containing quaternary ammonium salt (QAS) moieties, and deposited on the iron oxide nanoparticles (IO NPs) (size 20~30 nm) using the LbL method. The chlorinated magnetic nanoparticles were characterized by Transmission electron microscopy, Thermogravimetric analysis, Zeta Potential analyses, Fourier transform infrared spectroscopy, X-Ray powder diffraction and Saturation magnetization value measurement. The biocidal kinetic test showed that the as-prepared nanoparticles had excellent biocidal activity towards both S. aureus (gram-positive) and E.coli (gram-negative) with short contact. In addition, functionalized magnetic nanocomposites can be easily recycled by an external magnetic field. The LbL assembly strategy provides possibility for the development of novel antimicrobial coatings via an eco-friendly approach.
{"title":"Layer-by-layer self-assembly for fabrication of recyclable magnetic antimicrobial nanocomposites","authors":"X. Wang, Bingcheng Hu, X. Xing","doi":"10.1109/NANO.2016.7751296","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751296","url":null,"abstract":"Layer-by-layer (LbL) assembly is a prevalent approach for coating material with functional thin films. In this work, we report on high-efficient antibacterial nanofilms constructed by direct assembly of sodium citrate with synthetic N-halamine precursor containing quaternary ammonium salt (QAS) moieties, and deposited on the iron oxide nanoparticles (IO NPs) (size 20~30 nm) using the LbL method. The chlorinated magnetic nanoparticles were characterized by Transmission electron microscopy, Thermogravimetric analysis, Zeta Potential analyses, Fourier transform infrared spectroscopy, X-Ray powder diffraction and Saturation magnetization value measurement. The biocidal kinetic test showed that the as-prepared nanoparticles had excellent biocidal activity towards both S. aureus (gram-positive) and E.coli (gram-negative) with short contact. In addition, functionalized magnetic nanocomposites can be easily recycled by an external magnetic field. The LbL assembly strategy provides possibility for the development of novel antimicrobial coatings via an eco-friendly approach.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"6 1","pages":"547-550"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84585567","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751396
Domna-Maria Kaimaki, Ben E. Smith, Sorin V Filip, C. Durkan
Carbonaceous deposits in oil exposed surfaces are responsible for compromising performance and reducing profitability across the hydrocarbons value chain. In particular, in upstream operation, fouling between the well and the production facility has been found to reduce flow, availability and reliability resulting in lost production. Thus, a better understanding of the processes leading to the deposition of these complex and heavy organic compounds is required, since it is unclear whether they primarily aggregate in the liquid phase or at the liquid-solid interface. In an effort to understand the mechanisms behind deposition, this study uses different modalities of atomic force microscopy (AFM) to characterise relevant metallic, oil exposed surfaces with deposits already on them. More specifically, in this post-mortem analysis, surfaces exposed to oil with and without the presence of an inhibitor are imaged in an effort to pinpoint the effect of the inhibitor on deposition.
{"title":"Characterisation of carbonaceous deposition in oil exposed surfaces at the nanoscale","authors":"Domna-Maria Kaimaki, Ben E. Smith, Sorin V Filip, C. Durkan","doi":"10.1109/NANO.2016.7751396","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751396","url":null,"abstract":"Carbonaceous deposits in oil exposed surfaces are responsible for compromising performance and reducing profitability across the hydrocarbons value chain. In particular, in upstream operation, fouling between the well and the production facility has been found to reduce flow, availability and reliability resulting in lost production. Thus, a better understanding of the processes leading to the deposition of these complex and heavy organic compounds is required, since it is unclear whether they primarily aggregate in the liquid phase or at the liquid-solid interface. In an effort to understand the mechanisms behind deposition, this study uses different modalities of atomic force microscopy (AFM) to characterise relevant metallic, oil exposed surfaces with deposits already on them. More specifically, in this post-mortem analysis, surfaces exposed to oil with and without the presence of an inhibitor are imaged in an effort to pinpoint the effect of the inhibitor on deposition.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"64 1","pages":"573-576"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89147439","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751380
I. Michaljaničová, P. Slepička, M. Veselý, V. Svorcik
Nanostructured polymers assume an important role in many applications, especially if they are prepared by an economical and effective process. The aim of this work is the construction and characterization of new surface structures induced by an inexpensive and easy method with a potential application in tissue engineering. Diverse surface structures and patterns on several polymer substrates were created by oxygen and argon plasma modification, while maintaining the identical properties of the bulk. The study was conducted on the foils of the following polymers: polyetheretherketone (PEEK), polyethersulfone (PES), polyhydroxybutyrate (PHB) and polymethylpentene (PMP). The shape and size of created structures are related to the choice of the treated polymer, applied plasma power, time exposure, and working atmosphere. The AFM and FIB-SEM images declare that the most interesting surface patterns were created on PMP and PHB by the longest time exposure (240 s). Goniometric measurement was also included and discussed.
{"title":"Efficient nanostructure construction on polymer substrates by plasma treatment for tissue engineering","authors":"I. Michaljaničová, P. Slepička, M. Veselý, V. Svorcik","doi":"10.1109/NANO.2016.7751380","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751380","url":null,"abstract":"Nanostructured polymers assume an important role in many applications, especially if they are prepared by an economical and effective process. The aim of this work is the construction and characterization of new surface structures induced by an inexpensive and easy method with a potential application in tissue engineering. Diverse surface structures and patterns on several polymer substrates were created by oxygen and argon plasma modification, while maintaining the identical properties of the bulk. The study was conducted on the foils of the following polymers: polyetheretherketone (PEEK), polyethersulfone (PES), polyhydroxybutyrate (PHB) and polymethylpentene (PMP). The shape and size of created structures are related to the choice of the treated polymer, applied plasma power, time exposure, and working atmosphere. The AFM and FIB-SEM images declare that the most interesting surface patterns were created on PMP and PHB by the longest time exposure (240 s). Goniometric measurement was also included and discussed.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"1 1","pages":"149-152"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89334735","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751552
Xuqiang Zhang, Jianping Hu, Xiaoyan Luo
This paper proposes the realization of dual-threshold independent-gate FinFETs by optimizing the FinFET process parameters including the electrode work function, silicon body thickness, and oxide thickness. The optimum values of the FinFET process parameters are derived using BSIM-IMG SPICE model for independent-gate FinFET devices. In optimum dual-threshold independent-gate (IG) FinFETs, a high-threshold IG FinFET is logically equivalent to two short-gate (SG) FinFETs in series, while a low-threshold one is logically equivalent to two SG FinFETs in parallel. The complementary static logic circuits and differential cascode voltage switch logic circuits based on the proposed IG FinFET devices have been verified. The results show that basic gates using the proposed dual-threshold independent-gate FinFETs obtain lower energy delay products than those implementations based on SG FinFETs.
{"title":"Optimization of dual-threshold independent-gate FinFETs for compact low power logic circuits","authors":"Xuqiang Zhang, Jianping Hu, Xiaoyan Luo","doi":"10.1109/NANO.2016.7751552","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751552","url":null,"abstract":"This paper proposes the realization of dual-threshold independent-gate FinFETs by optimizing the FinFET process parameters including the electrode work function, silicon body thickness, and oxide thickness. The optimum values of the FinFET process parameters are derived using BSIM-IMG SPICE model for independent-gate FinFET devices. In optimum dual-threshold independent-gate (IG) FinFETs, a high-threshold IG FinFET is logically equivalent to two short-gate (SG) FinFETs in series, while a low-threshold one is logically equivalent to two SG FinFETs in parallel. The complementary static logic circuits and differential cascode voltage switch logic circuits based on the proposed IG FinFET devices have been verified. The results show that basic gates using the proposed dual-threshold independent-gate FinFETs obtain lower energy delay products than those implementations based on SG FinFETs.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"1 1","pages":"529-532"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89012907","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751414
Guangfu Wu, M. Meyyappan, K. Lai
Novel devices are desperately required for effective detection of bacteria because of its potential risks in the fields of food safety and public health. In this paper, we demonstrated graphene field-effect transistors (G-FETs) for Escherichia coli (E. coli) detection. Linker molecules and antibodies were employed to functionalize graphene. Raman spectroscopy and confocal microscopy were used to confirm the functionalization process of the linker molecules and antibodies. The linker molecule (1-pyrenebutanoic acid succinimidyl ester, PBASE) contains two parts: pyrene backbone and succinimidyl ester group. Pyrene attached onto the graphene surface via π-π stacking, and succinimidyl ester group covalently reacted with amino group of antibodies. Antibodies functionalized G-FETs enabled effective E. coli detection. The results showed that the Dirac point of the G-FETs shifted to right after detection of E. coli bacteria. Our G-FETs devices showed an obvious increase in the electrical current when the E. coli concentration was 5×103 CFU/mL. The simple and label-free biosensor reported here possesses promising potential to serve as a platform for other bacteria, protein and small molecule detection.
{"title":"Graphene field-effect transistors-based biosensors for Escherichia coli detection","authors":"Guangfu Wu, M. Meyyappan, K. Lai","doi":"10.1109/NANO.2016.7751414","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751414","url":null,"abstract":"Novel devices are desperately required for effective detection of bacteria because of its potential risks in the fields of food safety and public health. In this paper, we demonstrated graphene field-effect transistors (G-FETs) for Escherichia coli (E. coli) detection. Linker molecules and antibodies were employed to functionalize graphene. Raman spectroscopy and confocal microscopy were used to confirm the functionalization process of the linker molecules and antibodies. The linker molecule (1-pyrenebutanoic acid succinimidyl ester, PBASE) contains two parts: pyrene backbone and succinimidyl ester group. Pyrene attached onto the graphene surface via π-π stacking, and succinimidyl ester group covalently reacted with amino group of antibodies. Antibodies functionalized G-FETs enabled effective E. coli detection. The results showed that the Dirac point of the G-FETs shifted to right after detection of E. coli bacteria. Our G-FETs devices showed an obvious increase in the electrical current when the E. coli concentration was 5×103 CFU/mL. The simple and label-free biosensor reported here possesses promising potential to serve as a platform for other bacteria, protein and small molecule detection.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"3 1","pages":"22-25"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88114778","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751525
Jinhua Li, Zhuqing Wang, T. Ono
Preserved the exceptional properties of graphene, the graphene nanowall (GNW) with inter-networked vertically oriented three-dimensional graphene morphology possess superior potential in constructing advanced microsystems. In this paper, GNW thin film was synthesized through the microwave plasma-enhanced chemical vapor deposition method on SiO2/Si wafer and a spiral GNW microelectrode was further prepared with an achievable pattern resolution of 20 μm. The whole micro-patterning process on GNW demonstrated a good compatibility with the conventional Silicon-based micromachining technique. With the rational discussions on both of the growth mechanism and the microfabrication procedures, this work is expected to pave the way to realize GNW-based electronic devices and progressing the micro-electro-mechanical industry.
{"title":"Deposition and micromachining of graphene nanowall towards high-performance microsystems","authors":"Jinhua Li, Zhuqing Wang, T. Ono","doi":"10.1109/NANO.2016.7751525","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751525","url":null,"abstract":"Preserved the exceptional properties of graphene, the graphene nanowall (GNW) with inter-networked vertically oriented three-dimensional graphene morphology possess superior potential in constructing advanced microsystems. In this paper, GNW thin film was synthesized through the microwave plasma-enhanced chemical vapor deposition method on SiO2/Si wafer and a spiral GNW microelectrode was further prepared with an achievable pattern resolution of 20 μm. The whole micro-patterning process on GNW demonstrated a good compatibility with the conventional Silicon-based micromachining technique. With the rational discussions on both of the growth mechanism and the microfabrication procedures, this work is expected to pave the way to realize GNW-based electronic devices and progressing the micro-electro-mechanical industry.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"50 1","pages":"624-626"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86447027","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751481
Takashi Nakamura, K. Amezawa
In order to understand the behavior of the crystal lattice deformation induced by the interstitial oxygen formation in La2(Ni0.9M0.1)O4+δ (M = Fe, Co, Cu), thermogravimetry, coulometric titration, and high temperature X-ray diffraction measurements were carried out in the temperature range between 873 to 1173 K and the P(O2) range between 10-24 to 1 bar. Oxygen content variation under wide range of P(O2) could be successfully evaluated by combining thermogravimetry and coulometric titration techniques. Compared with non-doped La2NiO4+δ, La2(Ni0.9Fe0.1)O4+δ and La2(Ni0.9Co0.1)O4+δ have more interstitial oxygen while La2(Ni0.9Cu0.1)O4+δ have less. Crystal structure at high temperatures was analyzed assuming the tetragonal symmetry, I4/mmm, for all compositions. With increasing interstitial oxygen concentration, the lattice parameter perpendicular to the perovskite layer increased and that parallel to the perovskite layer decreased. Consequently, the change of the cell volume by the interstitial oxygen formation was small, meaning macroscopic chemical expansion is small.
{"title":"Chemically-induced structural deformation of layered perovskite oxides","authors":"Takashi Nakamura, K. Amezawa","doi":"10.1109/NANO.2016.7751481","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751481","url":null,"abstract":"In order to understand the behavior of the crystal lattice deformation induced by the interstitial oxygen formation in La<sub>2</sub>(Ni<sub>0.9</sub>M<sub>0.1</sub>)O<sub>4+δ</sub> (M = Fe, Co, Cu), thermogravimetry, coulometric titration, and high temperature X-ray diffraction measurements were carried out in the temperature range between 873 to 1173 K and the P(O<sub>2</sub>) range between 10<sup>-24</sup> to 1 bar. Oxygen content variation under wide range of P(O<sub>2</sub>) could be successfully evaluated by combining thermogravimetry and coulometric titration techniques. Compared with non-doped La<sub>2</sub>NiO<sub>4+δ</sub>, La<sub>2</sub>(Ni<sub>0.9</sub>Fe<sub>0.1</sub>)O<sub>4+δ</sub> and La<sub>2</sub>(Ni<sub>0.9</sub>Co<sub>0.1</sub>)O<sub>4+δ</sub> have more interstitial oxygen while La<sub>2</sub>(Ni<sub>0.9</sub>Cu<sub>0.1</sub>)O<sub>4+δ</sub> have less. Crystal structure at high temperatures was analyzed assuming the tetragonal symmetry, I4/mmm, for all compositions. With increasing interstitial oxygen concentration, the lattice parameter perpendicular to the perovskite layer increased and that parallel to the perovskite layer decreased. Consequently, the change of the cell volume by the interstitial oxygen formation was small, meaning macroscopic chemical expansion is small.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"72 1","pages":"429-430"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86155485","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}
Pub Date : 2016-08-01DOI: 10.1109/NANO.2016.7751490
T. Morie, Haichao Liang, Takashi Tohara, Hirofumi Tanaka, M. Igarashi, S. Samukawa, K. Endo, Yasuo Takahashi
This paper introduces a time-domain weighted-sum calculation operation based on a spiking neuron model, and discusses a resistance-capacitance circuit that performs a calculation operation assumed to be realized in CMOS VLSI technology. A nanodevice that executes this calculation is also presented. The calculation circuit is useful for extremely low power operation. This operation uses the rising slopes of post-synaptic potentials triggered by input spike pulses. In the time-domain calculation circuit, the energy dissipation is independent of the resistance, and only depends on the capacitance and voltages. However, the time constant, which is the product of the resistance and capacitance, should be relatively large to guarantee the calculation resolution, and therefore the resistance should be at the giga-ohms levels. The nanodevice consists of a nanodisk array connected with a fin field-effect transistor. Nanodisk arrays can be fabricated using a self-assembly bio-nano-template technique, and they act as resistors with resistance levels of several giga-ohms. A weighted sum can be achieved with an energy dissipation on the order of 1 fJ, with a number of inputs that can be more than 100. This amount of energy is several orders of magnitude lower than that of conventional digital processors.
{"title":"Spike-based time-domain weighted-sum calculation using nanodevices for low power operation","authors":"T. Morie, Haichao Liang, Takashi Tohara, Hirofumi Tanaka, M. Igarashi, S. Samukawa, K. Endo, Yasuo Takahashi","doi":"10.1109/NANO.2016.7751490","DOIUrl":"https://doi.org/10.1109/NANO.2016.7751490","url":null,"abstract":"This paper introduces a time-domain weighted-sum calculation operation based on a spiking neuron model, and discusses a resistance-capacitance circuit that performs a calculation operation assumed to be realized in CMOS VLSI technology. A nanodevice that executes this calculation is also presented. The calculation circuit is useful for extremely low power operation. This operation uses the rising slopes of post-synaptic potentials triggered by input spike pulses. In the time-domain calculation circuit, the energy dissipation is independent of the resistance, and only depends on the capacitance and voltages. However, the time constant, which is the product of the resistance and capacitance, should be relatively large to guarantee the calculation resolution, and therefore the resistance should be at the giga-ohms levels. The nanodevice consists of a nanodisk array connected with a fin field-effect transistor. Nanodisk arrays can be fabricated using a self-assembly bio-nano-template technique, and they act as resistors with resistance levels of several giga-ohms. A weighted sum can be achieved with an energy dissipation on the order of 1 fJ, with a number of inputs that can be more than 100. This amount of energy is several orders of magnitude lower than that of conventional digital processors.","PeriodicalId":6646,"journal":{"name":"2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO)","volume":"23 1","pages":"390-392"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78180376","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}
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