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Applied Science and Convergence Technology最新文献

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Simulation Studies on Quasi-Bound States in the Continuum Introduced by Out-of-Plane Symmetry Breaking in Dielectric Metasurfaces 介电超表面面外对称破缺引入的连续介质中准束缚态的模拟研究
IF 0.8
Applied Science and Convergence Technology Pub Date : 2022-01-31 DOI: 10.5757/asct.2022.31.1.31
Hyunsung Lim, Jeeyoon Jeong
{"title":"Simulation Studies on Quasi-Bound States in the Continuum Introduced by Out-of-Plane Symmetry Breaking in Dielectric Metasurfaces","authors":"Hyunsung Lim, Jeeyoon Jeong","doi":"10.5757/asct.2022.31.1.31","DOIUrl":"https://doi.org/10.5757/asct.2022.31.1.31","url":null,"abstract":"","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75944617","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}
引用次数: 1
Characterization of SiO2 Over Poly-Si Mask Etching in Ar/C4F8 Capacitively Coupled Plasma Ar/C4F8电容耦合等离子体中SiO2的多晶硅掩模刻蚀特性
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-30 DOI: 10.5757/asct.2021.30.6.176
Inho Seong, Jangjae Lee, C. Cho, Yeong-Seok Lee, S. Kim, S. You
{"title":"Characterization of SiO2 Over Poly-Si Mask Etching in Ar/C4F8 Capacitively Coupled Plasma","authors":"Inho Seong, Jangjae Lee, C. Cho, Yeong-Seok Lee, S. Kim, S. You","doi":"10.5757/asct.2021.30.6.176","DOIUrl":"https://doi.org/10.5757/asct.2021.30.6.176","url":null,"abstract":"","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85539974","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}
引用次数: 15
Control of Cathode Arc Root Behavior in a Reverse Polarity Hollow Electrode Plasma Torch Using an Exit Nozzle 利用出口喷嘴控制反极性空心电极等离子炬阴极电弧根部行为
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-30 DOI: 10.5757/asct.2021.30.6.167
Sang-Min Jeong, Darian Figuera-Michal, Dong-Hyun Lee, Min-Gyu Choi, J. Seo
{"title":"Control of Cathode Arc Root Behavior in a Reverse Polarity Hollow Electrode Plasma Torch Using an Exit Nozzle","authors":"Sang-Min Jeong, Darian Figuera-Michal, Dong-Hyun Lee, Min-Gyu Choi, J. Seo","doi":"10.5757/asct.2021.30.6.167","DOIUrl":"https://doi.org/10.5757/asct.2021.30.6.167","url":null,"abstract":"In this study, a hollow electrode plasma torch with a cylindrical exit nozzle was proposed and tested to control the behavior of cathode arc roots in the reverse polarity electrical connection for the non-transferred mode operation. The test results revealed that in the absence of an exit nozzle, cathode arc roots cause arcing on the electrically floated torch housing, producing an unstable plasma jet. However, in the presence of an exit nozzle, when injecting the secondary gas with a swirl through a gap between the exit nozzle and front electrode, it was confirmed that cathode arc roots can be controlled to form only on the surface of the front electrode, producing a stable plasma jet without arcing on the torch housing. Additionally, the presence of an exit nozzle was observed to have little influence on the voltage–current characteristics of a reverse polarity hollow electrode plasma torch. Instead, heat loss to the coolant was reduced compared to that in the absence of an exit nozzle, thereby improving thermal efficiency.","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87043694","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}
引用次数: 1
Temperature-Dependence Study on the Hydrogen Transport Properties of Polymers Used for Hydrogen Infrastructure 氢基础设施用聚合物氢输运特性的温度依赖性研究
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-30 DOI: 10.5757/asct.2021.30.6.163
J. Jang, Chunjoong Kim, Nak-Kwan Chung
{"title":"Temperature-Dependence Study on the Hydrogen Transport Properties of Polymers Used for Hydrogen Infrastructure","authors":"J. Jang, Chunjoong Kim, Nak-Kwan Chung","doi":"10.5757/asct.2021.30.6.163","DOIUrl":"https://doi.org/10.5757/asct.2021.30.6.163","url":null,"abstract":"Polymeric materials used in hydrogen infrastructure degrade with temperature changes, thereby increasing the risk of hydrogen leakage. Therefore, it is essential to evaluate the hydrogen permeation characteristics at varying temperatures, particularly at low temperatures, for the safe use of hydrogen energy. This study aimed to measure hydrogen permeability at a temperature range of 243–313 K for exploring the hydrogen permeation characteristics according to the temperature of ethylene-propylene diene monomer (EPDM), fluorine-rubber (FKM), and nitrilebutadiene rubber (NBR) for hydrogen infrastructure. Results show that permeability and diffusivity rapidly decreased as the temperature decreased; however, there was no significant change in solubility with the variation in temperature. Activation energies of permeability, diffusivity, and solubility were calculated from the measurement results, among which the activation energy for permeability exhibited the largest value in the order of FKM, NBR, and EPDM.","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86269765","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}
引用次数: 1
Combination of Vacuum and Solution Processes for Stable Indoor Organic Solar Cell under LED Illumination LED照明下稳定室内有机太阳能电池的真空与溶液结合工艺研究
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-30 DOI: 10.5757/asct.2021.30.6.159
Yongju Lee, S. Biswas, Hyeok Kim
{"title":"Combination of Vacuum and Solution Processes for Stable Indoor Organic Solar Cell under LED Illumination","authors":"Yongju Lee, S. Biswas, Hyeok Kim","doi":"10.5757/asct.2021.30.6.159","DOIUrl":"https://doi.org/10.5757/asct.2021.30.6.159","url":null,"abstract":"The use of tiny, micro-powered electronic devices in indoor environments is increasing daily. The demand for high-performing organic photo- voltaics (OPVs) to power these devices has been rapidly growing because OPVs have favorable absorption properties for indoor environments, excellent mechanical flexibility, and other advantageous attributes. Recently, inexpensive, less acidic, and water-processable polyaniline:poly (4-styrenesulfonic acid) (PANI:PSS) was shown to deliver remarkably high performance as the hole transport layer (HTL) in an indoor OPV device with poly(3-hexylthiophene): indene-C60 bisadduct as the active layer. However, PANI:PSS has not been tested in combination with other active materials, although its universal applicability is of key importance for its commercialization. Thus, we tested the potentiality of using PANI:PSS as the HTL of a highly suitable active material, poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b’]dithiophene-2,6-diyl][3-fluoro-2- [(2-ethylhexyl-l)carbonyl]thieno[3,4-b]thiophendiyl]:phenyl-C70-butyric acid methyl ester (PTB7:PC 70 BM) in an OPV device under an LED lamp. The results reveal that the OPV device based on the PANI:PSS HTL and PTB7:PC 70 BM as the active material has high efficiency (11.80%) and a maximum power density of 42.5 𝜇 W/cm 2 under a 1,000 lx LED.","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80525417","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}
引用次数: 0
Numerical Analysis of Thermal Flow Characteristics Inside Waste Combustion Chamber with Multiple Thermal Plasma Jets 多个热等离子体射流的废燃烧室热流特性数值分析
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-30 DOI: 10.5757/asct.2021.30.6.172
Hyeokjun Kang, Jeong-Hwan Oh, Daeun Choi, H. Takana, Sooseok Choi
{"title":"Numerical Analysis of Thermal Flow Characteristics Inside Waste Combustion Chamber with Multiple Thermal Plasma Jets","authors":"Hyeokjun Kang, Jeong-Hwan Oh, Daeun Choi, H. Takana, Sooseok Choi","doi":"10.5757/asct.2021.30.6.172","DOIUrl":"https://doi.org/10.5757/asct.2021.30.6.172","url":null,"abstract":"","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80025095","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}
引用次数: 0
Detection of Carbon Dioxide Using Cucurbit[6]uril-Functionalized Gold Nanorod Gas Sensor Based on Localized Surface Plasmon Resonance 基于局域表面等离子体共振的瓜[6]脲功能化金纳米棒气体传感器检测二氧化碳
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-30 DOI: 10.5757/asct.2021.30.5.186
Seongjae Jo, Jinyeong Kim, Yejin Kim, Oh Seok Kwon
{"title":"Detection of Carbon Dioxide Using Cucurbit[6]uril-Functionalized Gold Nanorod Gas Sensor Based on Localized Surface Plasmon Resonance","authors":"Seongjae Jo, Jinyeong Kim, Yejin Kim, Oh Seok Kwon","doi":"10.5757/asct.2021.30.5.186","DOIUrl":"https://doi.org/10.5757/asct.2021.30.5.186","url":null,"abstract":"Owing to rapid climate change and increasingly stringent carbon regulations, carbon dioxide detection is becoming more important. In this study, we fabricate a cucurbit[6]uril-functionalized gold nanorod-based localized surface plasmon resonance (LSPR) gas sensor to detect carbon dioxide. The gold nanorods provide a high refractive index unit that enables the measurement of gas molecules with low molecular weights, while cucurbit[6]uril is a chemical receptor that binds to carbon dioxide owing to its structural characteristics. Therefore, cucurbit[6]uril was functionalized through direct adhesion on the surface of gold nanorods, which was replaced with citrate. The manufactured sensor can detect the presence of carbon dioxide at a maximum concentration of 400 ppm in the atmosphere. The high potential applicability of the cucurbit[6]uril-applied LSPR gas sensors is demonstrated in this study.","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88561834","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}
引用次数: 0
Spin-Orbit-Entangled Nature of Magnetic Moments and Kitaev Magnetism in Layered Halides 层状卤化物中磁矩和基塔耶夫磁性的自旋-轨道纠缠性质
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-11-24 DOI: 10.5757/ASCT.2021.30.6.191
Heung-Sik Kim
{"title":"Spin-Orbit-Entangled Nature of Magnetic Moments and Kitaev Magnetism in Layered Halides","authors":"Heung-Sik Kim","doi":"10.5757/ASCT.2021.30.6.191","DOIUrl":"https://doi.org/10.5757/ASCT.2021.30.6.191","url":null,"abstract":"$alpha$-RuCl$_3$ has been extensively studied recently because of potential bond-dependent Kitaev magnetic exchange interactions and the resulting quantum spin liquid phase that can be realized therein. It has been known that the covalency between Ru 4$d$- and Cl $p$-orbitals is crucial to induce large Kitaev interactions in this compound, therefore replacing Cl into heavier halogen elements such as Br or I can be a promising way to promote the Kitaev interaction even further. In a timely manner, there have been reports on synthesis of $alpha$-RuBr$_3$ and $alpha$-RuI$_3$, which are expected to host the same spin-orbit-entangled orbitals and Kitaev exchange interactions with $alpha$-RuCl$_3$. Here in this work we investigate electronic structures of $alpha$-RuCl$_3$, $alpha$-RuBr$_3$, and $alpha$-RuI$_3$ in a comparative fashion, focusing on the cooperation of the spin-orbit coupling and on-site Coulomb repulsions to realize the spin-orbit-entangled pseudospin-1/2 at Ru sites. We further estimate magnetic exchange interactions of all three compounds, showing that $alpha$-RuBr$_3$ can be promising candidates to realize Kitaev spin liquid phases in solid-state systems.","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80178075","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}
引用次数: 4
Surface Modification of Steel Foils by Depositing Cr/Al or Al/Cr Thin Films: Effect of Rapid Heat Treatment 沉积Cr/Al或Al/Cr薄膜对钢箔的表面改性:快速热处理的效果
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-09-30 DOI: 10.5757/asct.2021.30.5.146
H. Khachatryan, Kyoung-Bo Kim, Moojin Kim
{"title":"Surface Modification of Steel Foils by Depositing Cr/Al or Al/Cr Thin Films: Effect of Rapid Heat Treatment","authors":"H. Khachatryan, Kyoung-Bo Kim, Moojin Kim","doi":"10.5757/asct.2021.30.5.146","DOIUrl":"https://doi.org/10.5757/asct.2021.30.5.146","url":null,"abstract":"In this study, Al and Cr films were deposited onto steel substrates, and the film growth and microstructure were tracked. In the first set of experiments, Al was directly deposited onto steel, and Cr films were then deposited on top of the formed Al films. In the second set of experiments, it was vice versa ; that is, Cr films were deposited onto the steel substrate, followed by Al film deposition. This technique was aimed at controlling the reflection property of the steel substrate to enable using steel foils for flexible display fabrication. It was observed that temperature significantly influenced grain formation and growth processes. When the temperature reached 550 ∘ C, segregation occurred in the system where Cr contacted the steel, and Al was on the top layer. However, a similar phenomenon was not observed in the steel/Al/Cr system. The reflection value significantly decreased from 92 to 5–7 %, owing to these segregations.","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86073900","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}
引用次数: 0
Effect of Reaction Time on Optical Properties of CsPbBr3 Perovskite Nanocrystals 反应时间对CsPbBr3钙钛矿纳米晶体光学性质的影响
IF 0.8
Applied Science and Convergence Technology Pub Date : 2021-09-30 DOI: 10.5757/asct.2021.30.5.152
Sung Hun Kim, Yong-Ryun Jo, Yong Bin Kim, Ju Seok Kim, S. Yim, Hong Seok Lee
{"title":"Effect of Reaction Time on Optical Properties of CsPbBr3 Perovskite Nanocrystals","authors":"Sung Hun Kim, Yong-Ryun Jo, Yong Bin Kim, Ju Seok Kim, S. Yim, Hong Seok Lee","doi":"10.5757/asct.2021.30.5.152","DOIUrl":"https://doi.org/10.5757/asct.2021.30.5.152","url":null,"abstract":"","PeriodicalId":8223,"journal":{"name":"Applied Science and Convergence Technology","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74381859","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}
引用次数: 1
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