Pub Date : 2015-08-01DOI: 10.1109/QIR.2015.7374889
Sang-Bum Kang, Chang-Ju Lee, C. Won, Yi-Sak Koo, Jung-Hee Lee, S. Hahm, S. Hong, B. Cho
We proposed and fabricated an AlGaN/GaN hetero-structure layer-based metal-insulator-semiconductor-insulator-metal type UV sensor by using five stacks of multi-layer graphene. It showed two clear cut-off wavelengths at 330 and 365 nm. Compared with that of Ni electrode, it showed very low leakage current and high photo-responsivity.
{"title":"Double-wavelength sensitive AlGaN/GaN MISIM UV sensor using multi-layer graphene as Schottky electrodes","authors":"Sang-Bum Kang, Chang-Ju Lee, C. Won, Yi-Sak Koo, Jung-Hee Lee, S. Hahm, S. Hong, B. Cho","doi":"10.1109/QIR.2015.7374889","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374889","url":null,"abstract":"We proposed and fabricated an AlGaN/GaN hetero-structure layer-based metal-insulator-semiconductor-insulator-metal type UV sensor by using five stacks of multi-layer graphene. It showed two clear cut-off wavelengths at 330 and 365 nm. Compared with that of Ni electrode, it showed very low leakage current and high photo-responsivity.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":" 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113951877","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374905
W. G. Ariastina, I. Kumara, C. G. Indra Partha, I. G. Dyana Arjana, I. W. Arta Wijaya, A. Amrita, I. Giriantari
This paper presents a field experience in condition monitoring of a power transformer using SFRA technique. A design based comparison approach of the SFRA test results is discussed in the paper. In order to verify the latest condition of the transformer, the SFRA test was complemented with DGA and PD tests. The SFRA test results indicated that there is an abnormality within the transformer windings. The PD test results confirmed this interpretation, where very large ultrasonic impulses were detected. A series of DGA tests have showed that there is an early stage degradation of the insulating paper, which may be associated with fault within the transformer windings. The field experience showed that the monitoring approach has been very useful in indicating the possible occurrence of failure within the transformer structure.
{"title":"Frequency response measurement of a power transformer","authors":"W. G. Ariastina, I. Kumara, C. G. Indra Partha, I. G. Dyana Arjana, I. W. Arta Wijaya, A. Amrita, I. Giriantari","doi":"10.1109/QIR.2015.7374905","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374905","url":null,"abstract":"This paper presents a field experience in condition monitoring of a power transformer using SFRA technique. A design based comparison approach of the SFRA test results is discussed in the paper. In order to verify the latest condition of the transformer, the SFRA test was complemented with DGA and PD tests. The SFRA test results indicated that there is an abnormality within the transformer windings. The PD test results confirmed this interpretation, where very large ultrasonic impulses were detected. A series of DGA tests have showed that there is an early stage degradation of the insulating paper, which may be associated with fault within the transformer windings. The field experience showed that the monitoring approach has been very useful in indicating the possible occurrence of failure within the transformer structure.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128606333","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374916
Lia Aprilia, R. Nuryadi, R. D. Mayasari, D. Gustiono, Masmui, J. Raharjo, Yelvia Deni, B. Yuliarto, M. Iqbal, D. Hartanto
Microcantilever-based sensors have been demonstrated to be a high sensitive sensor in sensing application areas of chemistry, physics, biology, and biomedical. To determine the sensor selectivity, the microcantilever surface must be coated by a sensitive layer. In this work, zinc oxide (ZnO) is prepared on the microcantilever surface as a sensitive layer by employing a crystal growth method. To confirm the elemental of ZnO sensitive layer, the coated microcantilever surface is characterized by energy dispersive spectroscopy (EDS). Next, we investigate the response of microcantilever sensor to CO2 gas in dynamic mode operation. The results show that the microcantilever sensitively responds the gas, which is indicated by the change of resonance frequency. Moreover, the consistent sensing behavior with certain resonance frequency shift due to gas response over repetitive cycles is found. The quite small of response and recovery times indicate that the sensing performance of the microcantilever with ZnO sensitive layer has high repeatablility and high reproducibility.
{"title":"Growth of zinc oxide sensitive layer on microcantilever surface for gas sensor application","authors":"Lia Aprilia, R. Nuryadi, R. D. Mayasari, D. Gustiono, Masmui, J. Raharjo, Yelvia Deni, B. Yuliarto, M. Iqbal, D. Hartanto","doi":"10.1109/QIR.2015.7374916","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374916","url":null,"abstract":"Microcantilever-based sensors have been demonstrated to be a high sensitive sensor in sensing application areas of chemistry, physics, biology, and biomedical. To determine the sensor selectivity, the microcantilever surface must be coated by a sensitive layer. In this work, zinc oxide (ZnO) is prepared on the microcantilever surface as a sensitive layer by employing a crystal growth method. To confirm the elemental of ZnO sensitive layer, the coated microcantilever surface is characterized by energy dispersive spectroscopy (EDS). Next, we investigate the response of microcantilever sensor to CO2 gas in dynamic mode operation. The results show that the microcantilever sensitively responds the gas, which is indicated by the change of resonance frequency. Moreover, the consistent sensing behavior with certain resonance frequency shift due to gas response over repetitive cycles is found. The quite small of response and recovery times indicate that the sensing performance of the microcantilever with ZnO sensitive layer has high repeatablility and high reproducibility.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127187676","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374918
M. Suryanegara, Achmad Nashirudin, Naufan Raharya
Wireless Avionics Intra-Communication (WAIC) is the future avionics communications, which will substitute wire communication in a single aircraft. The WAIC systems do not provide any communication between air-to ground, air-to-air, and air to satellite. The WAIC systems are designed solely for enhancing efficiency and reliability inside the aircraft. The purposes of the system are monitoring, controlling, and communicating avionics in the aircraft, such as landing gear, wings, nacelles, vertical stabilizer, engine, etc. So, that system requires exclusive network for operation of the aircraft. The 22-23 GHz frequency is the candidate for WAIC system. It has sharing scenario with other systems, such as Fixed Service, Aeronautical Mobile service, Radio Astronomy, and EESS (passive) system. This paper simulates interference between WAIC and EESS (passive) systems. The interference between the two systems are the compatibility scenario of sharing study. The simulation scenario is being studied when the aircraft crosses the main beam of the EESS (passive) systems. Then, the results will be analyzed whether WAIC system interferes the EESS (passive) systems or vice versa. The simulations result show that the EESS (passive) systems do not cause harmful interference to WAIC system. So, the frequency band 22-23 GHz is compatible for WAIC system.
{"title":"The interference analysis between wireless Avionics Intra-Communications (WAIC) an EESS systems at 22–23 GHz","authors":"M. Suryanegara, Achmad Nashirudin, Naufan Raharya","doi":"10.1109/QIR.2015.7374918","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374918","url":null,"abstract":"Wireless Avionics Intra-Communication (WAIC) is the future avionics communications, which will substitute wire communication in a single aircraft. The WAIC systems do not provide any communication between air-to ground, air-to-air, and air to satellite. The WAIC systems are designed solely for enhancing efficiency and reliability inside the aircraft. The purposes of the system are monitoring, controlling, and communicating avionics in the aircraft, such as landing gear, wings, nacelles, vertical stabilizer, engine, etc. So, that system requires exclusive network for operation of the aircraft. The 22-23 GHz frequency is the candidate for WAIC system. It has sharing scenario with other systems, such as Fixed Service, Aeronautical Mobile service, Radio Astronomy, and EESS (passive) system. This paper simulates interference between WAIC and EESS (passive) systems. The interference between the two systems are the compatibility scenario of sharing study. The simulation scenario is being studied when the aircraft crosses the main beam of the EESS (passive) systems. Then, the results will be analyzed whether WAIC system interferes the EESS (passive) systems or vice versa. The simulations result show that the EESS (passive) systems do not cause harmful interference to WAIC system. So, the frequency band 22-23 GHz is compatible for WAIC system.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"456 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124325460","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374922
M. F. Lubis, A. Muis
In this paper, a fast shadow removal algorithm developed and implemented for river garbage pollution monitoring is reported. The algorithm is a modification of Retinex PDE shadow removal. In usual serial approach way, although giving satisfaction results in removing shadow in river image, Retinex PDE requires much computation tasks. In order to make it run faster, a parallel processing approach was applied. The parallel processing based shadow removal system had been developed using NVIDIA CUDA platform. The shadow removed images will then be processed using image segmentation. The segmentation process will separate between river and non-river (garbage) part in image. To analyze the accuracy of river and garbage separation, the percentages of garbage part in the segmented shadow removed image are compared with the percentage of garbage part obtained from ground truth image. The speed of computation between serial approach and parallel approach of shadow removal are also be compared and analyzed.
{"title":"Fast shadow removal algorithm for river garbage pollution monitoring system","authors":"M. F. Lubis, A. Muis","doi":"10.1109/QIR.2015.7374922","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374922","url":null,"abstract":"In this paper, a fast shadow removal algorithm developed and implemented for river garbage pollution monitoring is reported. The algorithm is a modification of Retinex PDE shadow removal. In usual serial approach way, although giving satisfaction results in removing shadow in river image, Retinex PDE requires much computation tasks. In order to make it run faster, a parallel processing approach was applied. The parallel processing based shadow removal system had been developed using NVIDIA CUDA platform. The shadow removed images will then be processed using image segmentation. The segmentation process will separate between river and non-river (garbage) part in image. To analyze the accuracy of river and garbage separation, the percentages of garbage part in the segmented shadow removed image are compared with the percentage of garbage part obtained from ground truth image. The speed of computation between serial approach and parallel approach of shadow removal are also be compared and analyzed.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115083620","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374882
Anggit Dwi Novella, H. Wijanto, A. D. Prasetyo
In this research, a single patch microstrip antenna has been made, using dual-feed line technique to produce a circular polarization. A rectangular slot has been used in order to reduce antenna dimension and increase the bandwidth. To increase the gain, front-end parasitic elements has been used. The antenna has a circular polarization with unidirectional radiation pattern. The center frequency is 2.35 GHz. The obtained value of VSWR is less than 1.5 with the bandwidth of 165.9 MHz, and the gain is 6.36 dBic.
{"title":"Dual-feed circularly polarized microstrip antenna for S-Band transmitter of Synthetic Aperture Radar (SAR) system","authors":"Anggit Dwi Novella, H. Wijanto, A. D. Prasetyo","doi":"10.1109/QIR.2015.7374882","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374882","url":null,"abstract":"In this research, a single patch microstrip antenna has been made, using dual-feed line technique to produce a circular polarization. A rectangular slot has been used in order to reduce antenna dimension and increase the bandwidth. To increase the gain, front-end parasitic elements has been used. The antenna has a circular polarization with unidirectional radiation pattern. The center frequency is 2.35 GHz. The obtained value of VSWR is less than 1.5 with the bandwidth of 165.9 MHz, and the gain is 6.36 dBic.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129893759","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374898
A. Munir, Edwar
A computational approach for resonant frequency calculation of coaxial cavity resonator using a cylindrical coordinate system-based finite difference time domain (FDTD) method is presented. Due to the geometry shape of analyzed structure, i.e. coaxial cavity resonator, the use of FDTD method with cylindrical coordinate system is chosen instead of Cartesian coordinate system. A coaxial cavity resonator made of perfect conductor with outer diameter of 100mm, inner diameter of 40mm and length of 150mm is modeled and discretized based on FDTD notation and then numerically computed to determine its resonant frequencies in the frequency range of 1-5GHz. Moreover, a simulation using finite element method (FEM) commercialized software is also conducted to determine resonant frequencies of the resonator for comparison. From the results, it shows that the proposed FDTD approach demonstrates the capability to determine resonant frequencies of coaxial cavity resonator with an acceptable accuracy compared to the FEM commercialized software in the maximum discrepancy around than 3%.
{"title":"Computational approach for resonant frequency calculation of coaxial cavity resonator using cylindrical coordinate system-based FDTD method","authors":"A. Munir, Edwar","doi":"10.1109/QIR.2015.7374898","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374898","url":null,"abstract":"A computational approach for resonant frequency calculation of coaxial cavity resonator using a cylindrical coordinate system-based finite difference time domain (FDTD) method is presented. Due to the geometry shape of analyzed structure, i.e. coaxial cavity resonator, the use of FDTD method with cylindrical coordinate system is chosen instead of Cartesian coordinate system. A coaxial cavity resonator made of perfect conductor with outer diameter of 100mm, inner diameter of 40mm and length of 150mm is modeled and discretized based on FDTD notation and then numerically computed to determine its resonant frequencies in the frequency range of 1-5GHz. Moreover, a simulation using finite element method (FEM) commercialized software is also conducted to determine resonant frequencies of the resonator for comparison. From the results, it shows that the proposed FDTD approach demonstrates the capability to determine resonant frequencies of coaxial cavity resonator with an acceptable accuracy compared to the FEM commercialized software in the maximum discrepancy around than 3%.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"295 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133194823","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374900
Prima Dewi Purnamasari, Jodhi Adhikaprana Sardjono, Dean Zaka Hidayat
Currently, there are several codes to refer to things. For example, barcode and QR code. Barcode is commonly implemented for supporting retail industries, for example to identify books and products. Meanwhile, QR code is generally implemented to code URL and other internet-related things. The purpose of this paper is to provide an innovative and a new way to differentiate things, which is called color code. Color code is visually more appealing and is easily understood for the humans' eyes. This is a strong advantage that makes color code at a distant winning if it is compared to the barcode and QR code. Color code is applicable to various applications, but because the color code technology is visually more attractive, color code is preferably implemented for entertainment and lifestyle need, because naturally humans' eyes are more attracted to color code rather than to other types of codes. Color code can be scanned by the smartphone camera. After the color code is obtained by the camera, an application is used to interpret camera input into data, and then transform the matched flagged sign color code combination into a specific instruction. In this research, we successfully made an application to translate color code based on Java OpenCV for Android smartphones.
{"title":"Color code: An innovative and attractive way to differentiate products","authors":"Prima Dewi Purnamasari, Jodhi Adhikaprana Sardjono, Dean Zaka Hidayat","doi":"10.1109/QIR.2015.7374900","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374900","url":null,"abstract":"Currently, there are several codes to refer to things. For example, barcode and QR code. Barcode is commonly implemented for supporting retail industries, for example to identify books and products. Meanwhile, QR code is generally implemented to code URL and other internet-related things. The purpose of this paper is to provide an innovative and a new way to differentiate things, which is called color code. Color code is visually more appealing and is easily understood for the humans' eyes. This is a strong advantage that makes color code at a distant winning if it is compared to the barcode and QR code. Color code is applicable to various applications, but because the color code technology is visually more attractive, color code is preferably implemented for entertainment and lifestyle need, because naturally humans' eyes are more attracted to color code rather than to other types of codes. Color code can be scanned by the smartphone camera. After the color code is obtained by the camera, an application is used to interpret camera input into data, and then transform the matched flagged sign color code combination into a specific instruction. In this research, we successfully made an application to translate color code based on Java OpenCV for Android smartphones.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134108855","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374899
I. S. Wijaya, I. Widiartha, K. Uchimura, G. Koutaki
This paper proposes alternative solution for pornographic rejection using eigenporn extracted by simplified linear discriminant analysis (LDA) of skin region of interests (ROIs) of pornographic images. The skin ROI is extracted by skin segmentation that is performed by threshold rule of YCbCr color space. The skin ROI is employed to handle the large variability of pornographic images due to backgrounds variations. While eigenporn is employed not only to decrease the dimensionality of the input images but also to handle the large variability of pornographic images due to poses variations. The main aim of this research is to obtain good algorithm for rejection of pornographic contents, which can be developed for rejecting of accessing pornographic contents in the Internet from unexpected people like children. The experimental results show that the proposed rejection system is suitable concept for rejecting of accessing pornographic images, which is shown by higher accuracy and less false rejection rate than those of existing methods (increasing the accuracy by about 2.38% and decrease the FPR and computational time by about 13.20% and 0.195 seconds of those of FD based method, respectively).
{"title":"Pornographic image rejection using eigenporn of simplified LDA of skin ROIs images","authors":"I. S. Wijaya, I. Widiartha, K. Uchimura, G. Koutaki","doi":"10.1109/QIR.2015.7374899","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374899","url":null,"abstract":"This paper proposes alternative solution for pornographic rejection using eigenporn extracted by simplified linear discriminant analysis (LDA) of skin region of interests (ROIs) of pornographic images. The skin ROI is extracted by skin segmentation that is performed by threshold rule of YCbCr color space. The skin ROI is employed to handle the large variability of pornographic images due to backgrounds variations. While eigenporn is employed not only to decrease the dimensionality of the input images but also to handle the large variability of pornographic images due to poses variations. The main aim of this research is to obtain good algorithm for rejection of pornographic contents, which can be developed for rejecting of accessing pornographic contents in the Internet from unexpected people like children. The experimental results show that the proposed rejection system is suitable concept for rejecting of accessing pornographic images, which is shown by higher accuracy and less false rejection rate than those of existing methods (increasing the accuracy by about 2.38% and decrease the FPR and computational time by about 13.20% and 0.195 seconds of those of FD based method, respectively).","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133996663","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 : 2015-08-01DOI: 10.1109/QIR.2015.7374885
T. Abuzairi, M. Nagatsu, N. R. Poespawati, R. W. Purnamaningsih, M. Okada, Yohei Mochizuki
An atmospheric pressure plasma jet (APPJ) technique was developed to functionalize amino groups to obtain plasma-functionalized carbon nanotube (CNT) dot-array as a precursor of biomolecules of the bio-chip sensor. To realize bio-chip sensors based on CNT, it is needed the proper control of their surface functionalization. An APPJ technique for CNT functionalization was implemented in the two-stages: (1) pre-treatment with by Ar gas -500 V dc bias and (2) post-treatment by Ar and NH3 gas mixture without substrate bias. Two-stages plasma treatment are important factors for performing surface functionalization in the APPJ, without any pre-treatment or when we only applying the post-treatment, no functionalization occur in the CNT dot-array.
{"title":"Atmospheric pressure plasma functionalization of carbon nanotube dot-array with two-stage plasma treatments for the development of bio-chip sensors","authors":"T. Abuzairi, M. Nagatsu, N. R. Poespawati, R. W. Purnamaningsih, M. Okada, Yohei Mochizuki","doi":"10.1109/QIR.2015.7374885","DOIUrl":"https://doi.org/10.1109/QIR.2015.7374885","url":null,"abstract":"An atmospheric pressure plasma jet (APPJ) technique was developed to functionalize amino groups to obtain plasma-functionalized carbon nanotube (CNT) dot-array as a precursor of biomolecules of the bio-chip sensor. To realize bio-chip sensors based on CNT, it is needed the proper control of their surface functionalization. An APPJ technique for CNT functionalization was implemented in the two-stages: (1) pre-treatment with by Ar gas -500 V dc bias and (2) post-treatment by Ar and NH3 gas mixture without substrate bias. Two-stages plasma treatment are important factors for performing surface functionalization in the APPJ, without any pre-treatment or when we only applying the post-treatment, no functionalization occur in the CNT dot-array.","PeriodicalId":127270,"journal":{"name":"2015 International Conference on Quality in Research (QiR)","volume":"2009 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125603358","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：