Pub Date : 2006-01-01DOI: 10.1109/NEMS.2006.334873
Zhe Wang, Yudong Huang, X. Bai, X. Chen
The pyrolyzed polyaniline (PANI) consisted of amorphous hard carbon full of pores. Carbon nanotubes (CNTs) grew on pyrolyzed PANI substrate with the rough surface containing some pores using a low pressure chemistry vapor deposition (LPCVD) method with xylene as a carbon precursor source and Fe/SiO2 nanoparticles as catalyst. The pore extrusion and the deposited carbon particles adhesion of CNTs growing inside the pore of pyrolyzed PANI make CNTs mount to the substrate tightly. The field emission properties of production were investigated: the turn-on field is 1.6-2.6V/mum, the threshold field is 5.3-8.8V/mum and the enhancement factor is 4540-7200
聚苯胺(PANI)是由多孔的无定形硬碳组成。以二甲苯为碳前驱体源，Fe/SiO2纳米颗粒为催化剂，采用低压化学气相沉积(LPCVD)法制备了碳纳米管。在热解聚苯胺的孔内生长的碳纳米管的孔隙挤压和沉积的碳颗粒粘附使碳纳米管紧贴在基体上。研究了产品的场发射特性:导通场为1.6 ~ 2.6 v /mum，阈值场为5.3 ~ 8.8 v /mum，增强系数为4540 ~ 7200
{"title":"Preparation and Field Emission Properties of Carbon Nanotubes Grown on Novel Porous Pyrolyzed Polyaniline Substrate","authors":"Zhe Wang, Yudong Huang, X. Bai, X. Chen","doi":"10.1109/NEMS.2006.334873","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334873","url":null,"abstract":"The pyrolyzed polyaniline (PANI) consisted of amorphous hard carbon full of pores. Carbon nanotubes (CNTs) grew on pyrolyzed PANI substrate with the rough surface containing some pores using a low pressure chemistry vapor deposition (LPCVD) method with xylene as a carbon precursor source and Fe/SiO2 nanoparticles as catalyst. The pore extrusion and the deposited carbon particles adhesion of CNTs growing inside the pore of pyrolyzed PANI make CNTs mount to the substrate tightly. The field emission properties of production were investigated: the turn-on field is 1.6-2.6V/mum, the threshold field is 5.3-8.8V/mum and the enhancement factor is 4540-7200","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"49 1","pages":"687-690"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79925435","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334711
F. Mohammadi, R. Zandi-zand, M. Yousefi
(Ni+RuO2)/Ni active cathodes were prepared by electrochemical co-deposition of suspended RuO2 particles along with Ni2+ ions onto Ni substrates from an electrolyte solution (Watt bath). Morphology and composition of the cathodes were investigated by SEM and EDX analysis. The observations revealed the RuO 2-Ni layers covered by cauliflower-like particles which distributed homogeneously on the Ni substrate. Particle size and distribution of RuO2 particles in suspension and on the cathode surface were studied by light scattering (LS) and X-ray map techniques, respectively. The LS results revealed a Gaussian distribution with an average RuO2 particle size of 527nm in suspension while X-ray map showed a non-uniform nano particle size distribution below 100 nm. Electrochemical activity of the cathodes were evaluated by linear sweep voltametry (LSV) and the results showed that the enhanced activity of the cathodes were mainly ascribable to the RuO 2 content or the increase in the active sites. The effect of Ni substrates pre-treatment on activity and morphology of prepared cathodes showed morphology changes and enhanced effect on electrochemical activity of the cathodes
{"title":"Co-Electrodeposition and Characterization of Ni+RuO2 Nano-Electrocatalyst for Hydrogen Evolution in Chlor-Alkali Process","authors":"F. Mohammadi, R. Zandi-zand, M. Yousefi","doi":"10.1109/NEMS.2006.334711","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334711","url":null,"abstract":"(Ni+RuO2)/Ni active cathodes were prepared by electrochemical co-deposition of suspended RuO2 particles along with Ni2+ ions onto Ni substrates from an electrolyte solution (Watt bath). Morphology and composition of the cathodes were investigated by SEM and EDX analysis. The observations revealed the RuO 2-Ni layers covered by cauliflower-like particles which distributed homogeneously on the Ni substrate. Particle size and distribution of RuO2 particles in suspension and on the cathode surface were studied by light scattering (LS) and X-ray map techniques, respectively. The LS results revealed a Gaussian distribution with an average RuO2 particle size of 527nm in suspension while X-ray map showed a non-uniform nano particle size distribution below 100 nm. Electrochemical activity of the cathodes were evaluated by linear sweep voltametry (LSV) and the results showed that the enhanced activity of the cathodes were mainly ascribable to the RuO 2 content or the increase in the active sites. The effect of Ni substrates pre-treatment on activity and morphology of prepared cathodes showed morphology changes and enhanced effect on electrochemical activity of the cathodes","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"43 1","pages":"1258-1262"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80246204","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334602
J. Lou, B. Liu, S. Fu
In recent years, a new fiber optic position sensing technology with holographic variable line-space (VLS) plane grating is developed. The period of VLS plane grating is about less than 10 micron. The grooves of the holographic VLS plane grating are not straight in general. Due to the grooves bend of 2-D holographic VLS plane gratings, measurement errors of the position sensor are inevitable when the scanning direction of a position sensor isn't in the symmetry axis of a VLS plane grating. This work briefly describes the theoretical background to the position sensor concept and the geometry theory of holographic VLS gratings. We report a theoretical analysis of the measurement errors in two basic cases: translation deviation and rotation deviation. The proposed method has been applied to examples of computer simulation. The results obtained are quite noteworthy.
{"title":"Study on Measurement Errors of Position Sensor with Two-Dimension Holographic Variable Line-Space Plane Gratings","authors":"J. Lou, B. Liu, S. Fu","doi":"10.1109/NEMS.2006.334602","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334602","url":null,"abstract":"In recent years, a new fiber optic position sensing technology with holographic variable line-space (VLS) plane grating is developed. The period of VLS plane grating is about less than 10 micron. The grooves of the holographic VLS plane grating are not straight in general. Due to the grooves bend of 2-D holographic VLS plane gratings, measurement errors of the position sensor are inevitable when the scanning direction of a position sensor isn't in the symmetry axis of a VLS plane grating. This work briefly describes the theoretical background to the position sensor concept and the geometry theory of holographic VLS gratings. We report a theoretical analysis of the measurement errors in two basic cases: translation deviation and rotation deviation. The proposed method has been applied to examples of computer simulation. The results obtained are quite noteworthy.","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"1 1","pages":"1018-1020"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81619766","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334889
Yuh-Chung Hu, D.T.W. Lin, G.-D. Lee
This paper derives a closed form solution with fringing filed effects for the pull-in voltages of the micro fixed-fixed beam subjected to electrostatic loads and initial stress. The closed form solution is derived based on the Euler's beam theory and the energy method. The accuracy of the present closed form solution is verified through comparing with the experimentally measured data conducted in the published works. The error of the present closed form solution is within 1% compared to the experimentally measured data. The present closed form solution is more accurate than the past works and is very simple and highly accurate for implementation in the design and mechanical characterization of the micro devices.
{"title":"A Closed Form Solution for the Pull-in Voltage of the Micro Bridge with Initial Stress subjected to Electrostatic Loads","authors":"Yuh-Chung Hu, D.T.W. Lin, G.-D. Lee","doi":"10.1109/NEMS.2006.334889","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334889","url":null,"abstract":"This paper derives a closed form solution with fringing filed effects for the pull-in voltages of the micro fixed-fixed beam subjected to electrostatic loads and initial stress. The closed form solution is derived based on the Euler's beam theory and the energy method. The accuracy of the present closed form solution is verified through comparing with the experimentally measured data conducted in the published works. The error of the present closed form solution is within 1% compared to the experimentally measured data. The present closed form solution is more accurate than the past works and is very simple and highly accurate for implementation in the design and mechanical characterization of the micro devices.","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"283 1","pages":"757-761"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76832107","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334778
Yen-Chen Lin, K. Chuang, Tsu-Te Wang, C. Chiu, S. Fan
EWOD (electrowetting-on-dielectric) and LDEP (liquid dielectrophoresis) are investigated to provide digital and analog microfluidic functions on an integrated chip respectively. By altering the frequency of the applied voltage and the surrounding medium of a EWOD device, we found that when using oil as surrounding medium and applying an AC signal 100 kHz, liquid column would be drawn and follow the thin connecting lines of the EWOD driving electrodes instead of remaining on top of the center of the EWOD driving electrodes. This new phenomenon is described in this paper and is regarded as a LDEP effect. Three fundamental tools for integrated digital and analog microfluidics are developed, including a digital-to-analog converter, an analog-to-digital converter, and a valve. Combining EWOD and LDEP effects, liquids can be pumped on a virtual channel (analog microfluidics), defined by energized thin LDEP electrode lines, continuously from liquid reservoir or from a digitized droplet (digital microfluidics). On the contrary, liquids on LDEP electrodes (analog microfluidics) can also be pumped on a EWOD electrode and be digitized in droplet forms with precise volumes (digital microfluidics). EWOD and LDEP can be selectively programmed on a single chip, making integrated digital and analog microfluidics a reality
{"title":"Integrated Digital and Analog Microfluidics by EWOD and LDEP","authors":"Yen-Chen Lin, K. Chuang, Tsu-Te Wang, C. Chiu, S. Fan","doi":"10.1109/NEMS.2006.334778","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334778","url":null,"abstract":"EWOD (electrowetting-on-dielectric) and LDEP (liquid dielectrophoresis) are investigated to provide digital and analog microfluidic functions on an integrated chip respectively. By altering the frequency of the applied voltage and the surrounding medium of a EWOD device, we found that when using oil as surrounding medium and applying an AC signal 100 kHz, liquid column would be drawn and follow the thin connecting lines of the EWOD driving electrodes instead of remaining on top of the center of the EWOD driving electrodes. This new phenomenon is described in this paper and is regarded as a LDEP effect. Three fundamental tools for integrated digital and analog microfluidics are developed, including a digital-to-analog converter, an analog-to-digital converter, and a valve. Combining EWOD and LDEP effects, liquids can be pumped on a virtual channel (analog microfluidics), defined by energized thin LDEP electrode lines, continuously from liquid reservoir or from a digitized droplet (digital microfluidics). On the contrary, liquids on LDEP electrodes (analog microfluidics) can also be pumped on a EWOD electrode and be digitized in droplet forms with precise volumes (digital microfluidics). EWOD and LDEP can be selectively programmed on a single chip, making integrated digital and analog microfluidics a reality","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"54 1","pages":"1414-1417"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80796858","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334702
J. Hwang, S.W. Park, J.B. Cho, K. Oh, S.S. Yang, Soonil Lee, K. Koh, K. Jung
This paper reports the fabrication and experiment of a micro time of flight (TOF) mass spectrometer adopting a new ion generation method using a carbon nanostructure. The device is composed of an ion source and an ion separator. The ion source generates electrons by the field emission method. Carbon nanostructure has good field emission property. The emitted electrons collide with sample molecules and ionize the sample molecules. These ions are accelerated by separator. The current output signal is generated when the ions reach the ion detector in the order of mass size. The size of the assembled micro TOF mass spectrometer is 11 times 11 times 1 mm3. The experiment is performed in a vacuum chamber. The sample gas is introduced to the chamber and suitable voltages are applied to separation electrodes for the ion acceleration. Then we observe the current signal from the ion detector. The experimental result verifies the feasibility of the ion source and the ion separator included in the fabricated micro mass spectrometer
{"title":"The Micro Mass Spectrometer with A Carbon Nano Structure Ion Source","authors":"J. Hwang, S.W. Park, J.B. Cho, K. Oh, S.S. Yang, Soonil Lee, K. Koh, K. Jung","doi":"10.1109/NEMS.2006.334702","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334702","url":null,"abstract":"This paper reports the fabrication and experiment of a micro time of flight (TOF) mass spectrometer adopting a new ion generation method using a carbon nanostructure. The device is composed of an ion source and an ion separator. The ion source generates electrons by the field emission method. Carbon nanostructure has good field emission property. The emitted electrons collide with sample molecules and ionize the sample molecules. These ions are accelerated by separator. The current output signal is generated when the ions reach the ion detector in the order of mass size. The size of the assembled micro TOF mass spectrometer is 11 times 11 times 1 mm3. The experiment is performed in a vacuum chamber. The sample gas is introduced to the chamber and suitable voltages are applied to separation electrodes for the ion acceleration. Then we observe the current signal from the ion detector. The experimental result verifies the feasibility of the ion source and the ion separator included in the fabricated micro mass spectrometer","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"37 1","pages":"1220-1223"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85780707","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334806
Chi Feng Chen, Yao Chang Wang, S. Chi, K. Lin
Mach Zehnder type optical modulators with modified ridge structure on a coplanar waveguide traveling wave electrode are investigated by the use of finite element method and BPM CAD waveguide software. The two ends of conventional ridge structure added taped ridge structures is considered, the transmission loss is obviously reduced. It is shown that the device increased modified ridge structure can efficiently reduce the transmission loss and the extinction ratio at the same output waveguide. In other words, the optical properties of Mach Zehnder type optical modulator with modified ridge structure on a coplanar waveguide traveling-wave electrode are obviously enhanced
{"title":"Improved Mach Zehnder Optical Modulators with Modified Ridge Structure","authors":"Chi Feng Chen, Yao Chang Wang, S. Chi, K. Lin","doi":"10.1109/NEMS.2006.334806","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334806","url":null,"abstract":"Mach Zehnder type optical modulators with modified ridge structure on a coplanar waveguide traveling wave electrode are investigated by the use of finite element method and BPM CAD waveguide software. The two ends of conventional ridge structure added taped ridge structures is considered, the transmission loss is obviously reduced. It is shown that the device increased modified ridge structure can efficiently reduce the transmission loss and the extinction ratio at the same output waveguide. In other words, the optical properties of Mach Zehnder type optical modulator with modified ridge structure on a coplanar waveguide traveling-wave electrode are obviously enhanced","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"13 1","pages":"1457-1461"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78403457","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334708
Xiaoyin Cheng, Yang Li, X. Tao, H. Tsang, M. Leung, P. Xue, Xiaoxiang Cheng, C. Yuen
The sensitivity and stability are mainly factors to hold back the practical applications of Polypyrrole coated fabrics. In this paper, a flexible fabric strain sensor with high sensitivity, good stability and large deformation is reported. It is fabricated by depositing a nano-layer (200nm to 300nm) of polypyrrole on the fabric substrate at low temperature. Thickness and morphology of the conducting thin film on the surface of the fibers were examined by scanning probe microscopy (SPM) and scanning electron microscopy (SEM). The measurement of the conductivity change with strain shows the fabrics so prepared exhibits a high strain sensitivity of ~160 for a deformation as large as 50%, while its good stability is indicated by a small loss of conductivity after the thermal and humidity aging tests, and supported by the slight change in conductivity and sensitivity over a storage of eighteen months. The flexible strain sensor is expected to be a promising "soft" smart material with good sensing properties in the preparation of smart garment, wearable hardware and biomedical applications
{"title":"Polypyrrole-coated Fabric Strain Sensor with High Sensitivity and Good Stability","authors":"Xiaoyin Cheng, Yang Li, X. Tao, H. Tsang, M. Leung, P. Xue, Xiaoxiang Cheng, C. Yuen","doi":"10.1109/NEMS.2006.334708","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334708","url":null,"abstract":"The sensitivity and stability are mainly factors to hold back the practical applications of Polypyrrole coated fabrics. In this paper, a flexible fabric strain sensor with high sensitivity, good stability and large deformation is reported. It is fabricated by depositing a nano-layer (200nm to 300nm) of polypyrrole on the fabric substrate at low temperature. Thickness and morphology of the conducting thin film on the surface of the fibers were examined by scanning probe microscopy (SPM) and scanning electron microscopy (SEM). The measurement of the conductivity change with strain shows the fabrics so prepared exhibits a high strain sensitivity of ~160 for a deformation as large as 50%, while its good stability is indicated by a small loss of conductivity after the thermal and humidity aging tests, and supported by the slight change in conductivity and sensitivity over a storage of eighteen months. The flexible strain sensor is expected to be a promising \"soft\" smart material with good sensing properties in the preparation of smart garment, wearable hardware and biomedical applications","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"23 1","pages":"1245-1249"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77775774","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334736
Yanbao Ma, M. Fields, Chien-Pin Sun, Fengyuan Zhang, J. Liao, Yang Li, B. Churchill, Chih-Ming Ho
A novel micro mixer was designed and optimized by using numerical simulations. The performance of the mixer was tested by mixing two aqueous solutions under the microscope and the flow field was visualized using two different dyes. Efficient mixing was achieved by using pressure disturbances. Optimal mixing conditions were found by parametric studies using numerical simulations. Based on results of numerical simulation, more than 82% mixing can be finished within a mixing distance of less than 3.0mm for flow rates ranging from 1.2mul/min to 20mul/min. The mixing results were validated by comparing the flow patterns between numerical results and experimental results. There was a strong agreement between numerical results and experimental results
{"title":"Design of Microfluidic Mixer Utilizing Pressure Disturbances","authors":"Yanbao Ma, M. Fields, Chien-Pin Sun, Fengyuan Zhang, J. Liao, Yang Li, B. Churchill, Chih-Ming Ho","doi":"10.1109/NEMS.2006.334736","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334736","url":null,"abstract":"A novel micro mixer was designed and optimized by using numerical simulations. The performance of the mixer was tested by mixing two aqueous solutions under the microscope and the flow field was visualized using two different dyes. Efficient mixing was achieved by using pressure disturbances. Optimal mixing conditions were found by parametric studies using numerical simulations. Based on results of numerical simulation, more than 82% mixing can be finished within a mixing distance of less than 3.0mm for flow rates ranging from 1.2mul/min to 20mul/min. The mixing results were validated by comparing the flow patterns between numerical results and experimental results. There was a strong agreement between numerical results and experimental results","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"56 1","pages":"1303-1306"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72887977","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 : 2006-01-01DOI: 10.1109/NEMS.2006.334899
Chang Tian, Xiuxia Zhang, Changchun Zhu, Weihua Liu
A carbon nanotubes cathode was prepared by chemical vapor deposition (CVD) method on silicon substrate, and a field emission display with the carbon nanotubes cathode was fabricated by the vacuum-fluorescent-display-like package processes. Both the power supply voltage and the device voltage were measured at the same time. Very ideal current-voltage characteristic and luminance - voltage characteristic of the carbon nanotubes-field emission display (CNT-FED) are obtained for device voltage. It is found that substituting power supply voltage for device voltage is unreasonable. Compared with the luminance-voltage curve and the luminance-power curve, the luminance-current curve is better linear. Theoretical analysis showed that the reasons are the inner resistance of the CNT-FED consumes electric energy and real voltage change between the cathode and the anode of CNT-FED is very small after electrons emit. Hence, we prefer to describe the characteristic of CNT-FED by luminance-current linear relationship, which is advantageous to device test and design.
{"title":"Luminescent Rule of Carbon Nanotubes Field Emission Display","authors":"Chang Tian, Xiuxia Zhang, Changchun Zhu, Weihua Liu","doi":"10.1109/NEMS.2006.334899","DOIUrl":"https://doi.org/10.1109/NEMS.2006.334899","url":null,"abstract":"A carbon nanotubes cathode was prepared by chemical vapor deposition (CVD) method on silicon substrate, and a field emission display with the carbon nanotubes cathode was fabricated by the vacuum-fluorescent-display-like package processes. Both the power supply voltage and the device voltage were measured at the same time. Very ideal current-voltage characteristic and luminance - voltage characteristic of the carbon nanotubes-field emission display (CNT-FED) are obtained for device voltage. It is found that substituting power supply voltage for device voltage is unreasonable. Compared with the luminance-voltage curve and the luminance-power curve, the luminance-current curve is better linear. Theoretical analysis showed that the reasons are the inner resistance of the CNT-FED consumes electric energy and real voltage change between the cathode and the anode of CNT-FED is very small after electrons emit. Hence, we prefer to describe the characteristic of CNT-FED by luminance-current linear relationship, which is advantageous to device test and design.","PeriodicalId":6362,"journal":{"name":"2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"90 1","pages":"801-804"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82083389","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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