Pub Date : 2017-07-01DOI: 10.1109/NANO.2017.8117256
S. Shringi, N. N. Sharma
Brownian motion had been a topic of interest since the last two centuries and researchers have investigated the motion considering size, environment and mass. Few attempts considering the non-rigidity had been published to establish correlation between variance and nanoparticle parameter like size, mass and non-rigidity (stiffness) [1] [2]. In continuation, the present work investigates the significance of non-rigidity (stiffness) on variance in motion of nanoparticle. This work is important to conclude on whether soft nanoparticle moves more or less vis-à-vis a hard nanoparticle. We developed a model using correlation technique applied on Langevin equation for Brownian motion of nanoparticle and based on the simulation results, it was found that the motion is significantly governed by the stiffness of nanoparticles.
{"title":"Analysis of Brownian particle considering nonrigidity of matter — A Langevin equation approach","authors":"S. Shringi, N. N. Sharma","doi":"10.1109/NANO.2017.8117256","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117256","url":null,"abstract":"Brownian motion had been a topic of interest since the last two centuries and researchers have investigated the motion considering size, environment and mass. Few attempts considering the non-rigidity had been published to establish correlation between variance and nanoparticle parameter like size, mass and non-rigidity (stiffness) [1] [2]. In continuation, the present work investigates the significance of non-rigidity (stiffness) on variance in motion of nanoparticle. This work is important to conclude on whether soft nanoparticle moves more or less vis-à-vis a hard nanoparticle. We developed a model using correlation technique applied on Langevin equation for Brownian motion of nanoparticle and based on the simulation results, it was found that the motion is significantly governed by the stiffness of nanoparticles.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128677762","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117360
Jeong-Soo Lee, Saebyuk Jeong, Donghoon Kim, Chanoh Park, R. Baek, Bo Jin
In order to detect DMMP (dimethyl methyl-phosphonate; sarin simulant), tetrafluorohydroquinone (TFQ) functionalized graphene chemiresistive sensors are successfully developed. The graphene sensors show significantly enhanced sensitivity with various DMMP concentrations. In addition, for the real-time DMMP detection, a method using the first derivative of current sensitivity will be presented.
{"title":"Improving DMMP (Salin simulant) sensing characteristics of TFQ functionalized graphene chemiresistive sensors","authors":"Jeong-Soo Lee, Saebyuk Jeong, Donghoon Kim, Chanoh Park, R. Baek, Bo Jin","doi":"10.1109/NANO.2017.8117360","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117360","url":null,"abstract":"In order to detect DMMP (dimethyl methyl-phosphonate; sarin simulant), tetrafluorohydroquinone (TFQ) functionalized graphene chemiresistive sensors are successfully developed. The graphene sensors show significantly enhanced sensitivity with various DMMP concentrations. In addition, for the real-time DMMP detection, a method using the first derivative of current sensitivity will be presented.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131229284","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117441
N. Ganesh, N. Anderson
We present the fundamental lower bound on dissipation in feedforward neural networks associated with the combined cost of the training and testing phases. Finite state automata descriptions of output generation and the weight updates during training, are used to derive the corresponding lower bounds in a physically grounded manner. The results are illustrated using a simple perceptron learning the AND classification task. The effects of the learning rate parameter and input probability distribution on the cost of dissipation are studied. Derivation of neural network learning algorithms that minimize the total dissipation cost of training are explored.
{"title":"Dissipation in neuromorphic computing: Fundamental bounds for feedforward networks","authors":"N. Ganesh, N. Anderson","doi":"10.1109/NANO.2017.8117441","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117441","url":null,"abstract":"We present the fundamental lower bound on dissipation in feedforward neural networks associated with the combined cost of the training and testing phases. Finite state automata descriptions of output generation and the weight updates during training, are used to derive the corresponding lower bounds in a physically grounded manner. The results are illustrated using a simple perceptron learning the AND classification task. The effects of the learning rate parameter and input probability distribution on the cost of dissipation are studied. Derivation of neural network learning algorithms that minimize the total dissipation cost of training are explored.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129728276","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117284
Shane Colbum, A. Zhan, A. Majumdar, S. Deshmukh, E. Pop, J. Myers, J. Frantz
Tunable metasurfaces are a promising candidate for the next generation of spatial light modulators which will require higher refresh rates, smaller pixel sizes, and compact form factors. Phase-change memory materials present a unique platform for nonvolatile reconfigurable metasurfaces which could undergo phase transitions at MHz frequencies if actuated electrically, more than three orders of magnitude higher than refresh rates of existing commercial SLMs. While stable intermediate phases of GeSbTe (GST) exist which can be used for imparting differential phase shifts, the stochasticity of the material properties would limit the robustness of such a phase shifter, whereas the fully crystalline and amorphous states exhibit more consistent behavior. To overcome this, we design GST digital metamolecules comprising constituent meta-atoms which individually are in either the SET or RESET state, but which together form a tunable metamolecule with a set of robust phase shifts. We simulate active metasurface lenses based on these metamolecules, showing successful focusing, and demonstrate nano-patterning of a GST film with isolated nanoposts of material which could be electrically actuated, unlike counterparts which must be optically reconfigured.
{"title":"Active metasurfaces based on phase-change memory material digital metamolecules","authors":"Shane Colbum, A. Zhan, A. Majumdar, S. Deshmukh, E. Pop, J. Myers, J. Frantz","doi":"10.1109/NANO.2017.8117284","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117284","url":null,"abstract":"Tunable metasurfaces are a promising candidate for the next generation of spatial light modulators which will require higher refresh rates, smaller pixel sizes, and compact form factors. Phase-change memory materials present a unique platform for nonvolatile reconfigurable metasurfaces which could undergo phase transitions at MHz frequencies if actuated electrically, more than three orders of magnitude higher than refresh rates of existing commercial SLMs. While stable intermediate phases of GeSbTe (GST) exist which can be used for imparting differential phase shifts, the stochasticity of the material properties would limit the robustness of such a phase shifter, whereas the fully crystalline and amorphous states exhibit more consistent behavior. To overcome this, we design GST digital metamolecules comprising constituent meta-atoms which individually are in either the SET or RESET state, but which together form a tunable metamolecule with a set of robust phase shifts. We simulate active metasurface lenses based on these metamolecules, showing successful focusing, and demonstrate nano-patterning of a GST film with isolated nanoposts of material which could be electrically actuated, unlike counterparts which must be optically reconfigured.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130271361","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117486
Yanting Liu, Yajing Shen
Gold nanoplates (NPs) were fabricated through a facile hydrothermal method with cetyltrimethylammonium chlorine (CTAC) as a surfactant agent. The morphology and size of the gold NPs could be manipulated by changing the molar ratio of ([CTAC]/[HAuCl4] during the preparation. Triangular, truncated triangular and hexagonal gold nanoplates can be obtained and the sizes of these gold NPs can be varied from a few tens of nanometers, to several hundreds of nanometers, and even a few microns in width.
{"title":"Hydrothermal synthesis of gold nanoplates with different size ranges","authors":"Yanting Liu, Yajing Shen","doi":"10.1109/NANO.2017.8117486","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117486","url":null,"abstract":"Gold nanoplates (NPs) were fabricated through a facile hydrothermal method with cetyltrimethylammonium chlorine (CTAC) as a surfactant agent. The morphology and size of the gold NPs could be manipulated by changing the molar ratio of ([CTAC]/[HAuCl4] during the preparation. Triangular, truncated triangular and hexagonal gold nanoplates can be obtained and the sizes of these gold NPs can be varied from a few tens of nanometers, to several hundreds of nanometers, and even a few microns in width.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127768963","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117391
L. Fu, B. Shi, D. Jin, R. Chung
Neurodegenerative disorder diseases have been perplexing physicians and scientists for many years. There is considerable interest in developing diagnostic nanotools for diagnosis and therapeutic treatment strategies for the neuron diseases. However, a key challenge remains in selection of suitable surface to overcome the nano-bio interface issue as many nanoparticles indicate instability when administered into biological environments and show serious cytotoxicity to sensitive central nervous system. We have developed new-generation upconversion nanoparticles (UCNPs) which represent a promising model nanoparticle for suitable evaluation due to its superior properties in bio photonics.
{"title":"Versatile upconversion surfaces evaluation platform for bio-nano surface selection for nervous system","authors":"L. Fu, B. Shi, D. Jin, R. Chung","doi":"10.1109/NANO.2017.8117391","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117391","url":null,"abstract":"Neurodegenerative disorder diseases have been perplexing physicians and scientists for many years. There is considerable interest in developing diagnostic nanotools for diagnosis and therapeutic treatment strategies for the neuron diseases. However, a key challenge remains in selection of suitable surface to overcome the nano-bio interface issue as many nanoparticles indicate instability when administered into biological environments and show serious cytotoxicity to sensitive central nervous system. We have developed new-generation upconversion nanoparticles (UCNPs) which represent a promising model nanoparticle for suitable evaluation due to its superior properties in bio photonics.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128736092","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117374
Changho Oh, M. D. de Boer
Nano-electromechanical (NEM) are of interest to address the static and/or dynamic power loss challenges [1]-[4] in digital logic applications. Such mechanical switches prevent any leakage current from forming an air gap that separates the electrical contacts when the device is in the OFF state. The subthreshold swing can also be effectively reduced to less than 1 mV/decade [5], which can further reduce the power consumption. NEM switches can potentially operate at ∼1 mV and will consume up to ∼106 times less power than MOSFETs. Therefore, a fundamental understanding of NEM switches in terms of operation, reliability, and integration in IC applications is necessary for achieving ultra-low power computing.
{"title":"Investigation of contact resistance of TiN-TiN contacts for nanoswitches","authors":"Changho Oh, M. D. de Boer","doi":"10.1109/NANO.2017.8117374","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117374","url":null,"abstract":"Nano-electromechanical (NEM) are of interest to address the static and/or dynamic power loss challenges [1]-[4] in digital logic applications. Such mechanical switches prevent any leakage current from forming an air gap that separates the electrical contacts when the device is in the OFF state. The subthreshold swing can also be effectively reduced to less than 1 mV/decade [5], which can further reduce the power consumption. NEM switches can potentially operate at ∼1 mV and will consume up to ∼106 times less power than MOSFETs. Therefore, a fundamental understanding of NEM switches in terms of operation, reliability, and integration in IC applications is necessary for achieving ultra-low power computing.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124535789","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117303
Teng Chen, Wei Jiang
In this study, NiFe2O4/RGO (reduced graphene oxide) were prepared successfully via a facile method based on solvothermal method. The as-synthesized NiFe2O4/RGO nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption/desorption. To investigate the catalytic activity of the as-synthesized NiFe2O4/RGO nanoparticles, the thermal decomposition of ammonium perchlorate (AP) was characterized by differential thermal analyzer (DTA). The results indicated that the low-temperature exothermic peak and the high-temperature exothermic peak were merged into a sole exothermic process with the addition of NiFe2O4/RGO nanoparticles, though there was no change in the position of the phase transition temperature of AP. Moreover, the catalytic activity of NiFe2O4/RGO nanoparticles can make the high temperature exothermic peak of ammonium perchlorate decrease remarkably. The calculated HTD kinetic parameters indicate that NiFe2O4/RGO nanoparticles can decrease the activation energy of AP and increase the reaction rate constant, which further confirms the remarkable catalyst activity. Hence, NiFe2O4/RGO nanoparticles could be a promising addictive in modifying the burning behavior of Solid composite propellant.
{"title":"A facile solvothermal synthesis of NiFe2O4/RGO and its enhanced catalytic activity on thermal decomposition of ammonium perchlorate","authors":"Teng Chen, Wei Jiang","doi":"10.1109/NANO.2017.8117303","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117303","url":null,"abstract":"In this study, NiFe<inf>2</inf>O<inf>4</inf>/RGO (reduced graphene oxide) were prepared successfully via a facile method based on solvothermal method. The as-synthesized NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption/desorption. To investigate the catalytic activity of the as-synthesized NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles, the thermal decomposition of ammonium perchlorate (AP) was characterized by differential thermal analyzer (DTA). The results indicated that the low-temperature exothermic peak and the high-temperature exothermic peak were merged into a sole exothermic process with the addition of NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles, though there was no change in the position of the phase transition temperature of AP. Moreover, the catalytic activity of NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles can make the high temperature exothermic peak of ammonium perchlorate decrease remarkably. The calculated HTD kinetic parameters indicate that NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles can decrease the activation energy of AP and increase the reaction rate constant, which further confirms the remarkable catalyst activity. Hence, NiFe<inf>2</inf>O<inf>4</inf>/RGO nanoparticles could be a promising addictive in modifying the burning behavior of Solid composite propellant.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125629388","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117384
Chen Wang, Yu Huang, X. Duan
Black phosphorus and monolayer phosphorene is an emerging electronic materials for next-generation nanoelectronics. Here we report the polyaniline and protonic acid surface doping of thin black phosphorus to enhance its mobility and on-current, which will define new method to optimize of phosphorene electrical properties and open new revenue to study phosphorene electronics.
{"title":"Enhanced electrical characteristics of black phosphorus by polyaniline and protonic acid surface doping","authors":"Chen Wang, Yu Huang, X. Duan","doi":"10.1109/NANO.2017.8117384","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117384","url":null,"abstract":"Black phosphorus and monolayer phosphorene is an emerging electronic materials for next-generation nanoelectronics. Here we report the polyaniline and protonic acid surface doping of thin black phosphorus to enhance its mobility and on-current, which will define new method to optimize of phosphorene electrical properties and open new revenue to study phosphorene electronics.","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125921928","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 : 2017-07-01DOI: 10.1109/NANO.2017.8117471
A. Khan
Food supply and food safety are the key global public health issues, and are particularly important in heavily populated countries. Rapid industrialization and modernization in the developing world are having profound effects on food supply and food safety. In the age of globalization, the makeup of the international food industry is constantly transforming. Global food retail sales stand at about $4 trillion annually [1]. Globalization of the food supply has also introduced new food-safety risks, and the previously controlled risks now can be introduced into countries, and the contaminated food can be spread across wider geographic areas. Moreover, food-safety concerns may reduce the demand for certain food products, change international food trade patterns, and limit market access for some exporters [2].
{"title":"Nanotechnology applications in food and agriculture","authors":"A. Khan","doi":"10.1109/NANO.2017.8117471","DOIUrl":"https://doi.org/10.1109/NANO.2017.8117471","url":null,"abstract":"Food supply and food safety are the key global public health issues, and are particularly important in heavily populated countries. Rapid industrialization and modernization in the developing world are having profound effects on food supply and food safety. In the age of globalization, the makeup of the international food industry is constantly transforming. Global food retail sales stand at about $4 trillion annually [1]. Globalization of the food supply has also introduced new food-safety risks, and the previously controlled risks now can be introduced into countries, and the contaminated food can be spread across wider geographic areas. Moreover, food-safety concerns may reduce the demand for certain food products, change international food trade patterns, and limit market access for some exporters [2].","PeriodicalId":292399,"journal":{"name":"2017 IEEE 17th International Conference on Nanotechnology (IEEE-NANO)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127667724","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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