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Energy & Environmental Materials 2024年第4期7卷 344-354页

作者： Jamil Ur Rahman Woo Hyun Nam Yong-Jae Jung Jong Ho Won Jong-Min Oh Nguyen Van Du Gul Rahman Víctor M.García-Suárez Ran He Kornelius Nielsch Jung Young Cho Won-Seon Seo Jong Wook Roh Sang-il Kim soonil lee Kyu Hyoung lee Hyun Sik Kim Weon Ho Shin Leibniz Institute for Solid State and Materials Research Advanced Materials Convergence R&D Division Korea Institute of Ceramic Engineering & Technology Department of Electronic Materials Engineering Kwangwoon University Department of Energy Engineering Dankook University Faculty of Fundamental Science Phenikaa University Department of Physics Quaid-i-Azam University Departamento de Física Universidad de Oviedo Nanomaterials and Nanotechnology Research Center-CINN Department of Materials Science and Engineering Yonsei University School of Nano & Materials Science and Engineering Kyungpook National University Department of Materials Science and Engineering University of Seoul School of Materials Science and Engineering Changwon National University

Bi2Te3-based materials have drawn much attention from the thermoelectric community due to their excellent thermoelectric performance near room ***,the stability of existing n-type Bi2（Te,Se）3materials is still low due to the evaporation energy of Se (37.70 kJ mol-1) being much lower than that of Te (52.55 kJ mol-1).The evaporated Se from the material causes problems in interconnects of the module while degrading the efficiency.

关键词： Bi2Te3 energy harvesting FeTe2 nanoinclusion n-type materials thermoelectric

High-performance colorful semitransparent perovskite solar cells with phase-compensated microcavities

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Nano Research 2018年第5期11卷 2553-2561页

作者： Kyu-Tae lee Ji-Yun Jang Na Young Ha soonil lee Hui Joon Park Department of Materials Science and Engineering University of Illinois Urbana Illinois 61801 USA Department of EnergySystems Research Ajou University Suwon 16499 Republic of Korea Department of Electrical and Computer Engineering Ajou University Suwon 16499 Republic of Korea

We demonstrate highly efficient multi-colored semitransparent perovskite solar cells that can create high angular tolerant controllable transmissive colors up to 60~, based on phase-compensated microcavities. The efficiency of the semitransparent colors was improved by impedance matching, which was enabled by placing a dielectric functional layer on top of traditional optical microcavities, with negligible influence on color pureness. The vast majority of the visible part of solar radiation is efficiently utilized for solar energy harvesting, achieving 10.47%, 10.66%, and 11.18% of efficiency for red, green, and blue （RGB） colored solar cells, respective136 while a very small proportion of the visible solar spectrum is used for structural coloration that can be readily tuned by altering the cavity medium thickness. The approach described herein can be suitable for a variety of applications such as display systems with ultra-low power consumption, highly efficient colorful solar panels, low-power wearable electronics, and energy-efficient optoelectronics.

关键词： perovskite solar cells semitransparency color filters optical cavities

Photoluminescence of Nominally Undoped Heavy n-Type ZnO Nanowires

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Chinese Physics Letters 2011年第2期28卷 200-203页

作者： TANG Hai-Ping HE Hai-Ping LIU Chao KWON Bong-Jun YE Zhi-Zhen lee soonil PARK Ji-Yong Division of Energy Systems Research Ajou UniversitySuwon443-749Korea Baoji University of Arts and Sciences Baoji 721007 State Key Laboratory of Silicon Materials Department of Materials Science and EngineeringZhejiang UniversityHangzhou 310027

We report the identification of a donor band and the correlation between n-type conductivity and the green emission in ZnO ***-dependent photoluminescence is used to investigate nominally undoped ZnO nanowires with high n-type *** the whole temperature range,a dominant free-to-bound transition with a donor band of about 150meV below the conduction band minimum is *** nanowires show very strong green emission,which is quenched with activation energy of about 220 *** correlation between the high n-type conductivity and the strong green emission is discussed in detail,and we suggest that they may have different origins.

关键词： nanowires conductivity conductivity

辉光放电对负偏压增强热丝化学气相沉积碳纳米管的准直生长作用研究(英文)

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人工晶体学报 2004年第4期33卷 629-633页

作者：王必本 lee soonil Kim Junghoi 侯碧辉北京工业大学应用数理学院北京100022 亚洲大学分子科学与技术系

利用负偏压增强热丝化学气相沉积在不同的负偏压和压强下 ,在沉积有不同厚度NiFe膜的Si衬底上制备了碳纳米管 ,并用扫描电子显微镜研究了它们的生长。发现在无辉光放电的情况下 ,碳纳米管弯曲生长 ,而在辉光放电时 ,碳纳米管准直生长 ,... 详细信息

利用负偏压增强热丝化学气相沉积在不同的负偏压和压强下 ,在沉积有不同厚度NiFe膜的Si衬底上制备了碳纳米管 ,并用扫描电子显微镜研究了它们的生长。发现在无辉光放电的情况下 ,碳纳米管弯曲生长 ,而在辉光放电时 ,碳纳米管准直生长 ,表明辉光放电对碳纳米管的准直生长起到了重要的作用。由于辉光放电的产生 ,在衬底表面附近形成很强的电场。相对无辉光放电时的电场 ,场强提高了两个数量级。本工作详细地研究了辉光放电对碳纳米管的准直生长作用。

关键词：辉光放电负偏压增强热丝化学气相沉积 NiFe膜碳纳米管准直生长

Attenuated FOLFIRINOX in the salvage treatment of gemcitabine-refractory advanced pancreatic cancer: a phase II study

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Cancer Communications 2018年第1期38卷 344-351页

作者： Jung Hoon Kim Sang-Cheol lee Sung Yong Oh Seo-Young Song Namsu lee Eun Mi Nam soonil lee In Gyu Hwang Hyo Rak lee Kyu Taek lee Sang-Byung Bae Han Jo Kim Joung Soon Jang Do Hyoung Lim Hyun Woo lee Seok Yun Kang Jung Hun Kang Department of Internal Medicine Institute of Health SciencesGyeongsang National University15 Jinju-daero 816beon-gilJinju 52727Republic of Korea Divsion of Hematology and Oncology Department of Internal MedicineSoonchunhyang University Hospital CheonanCheonan 31151Republic of Korea Department of Internal Medicine Dong-A University HospitalBusan 49201Republic of Korea Department of Internal Medicine Kangwon National University School of MedicineChuncheon 24289Republic of Korea Divsion of Hematology and Oncology Department of Internal MedicineSoonchunhyang University Hospital SeoulSeoul 04401Republic of Korea Department of Internal Medicine Ewha Womans UniversityCollege of MedicineSeoul 07985Republic of Korea Department of Internal Medicine Dankook University HospitalCheonan 31116Republic of Korea Department of Internal Medicine Chung-Ang UniversityCollege of MedicineSeoul 06973Republic of Korea Division of Hematology and Medical Oncology Department of Internal MedicineKorea Cancer HospitalSeoul 01812Republic of Korea Department of Hematology-Oncology Ajou University HospitalSuwon 16499Republic of Korea

Background:Combination therapy with oxaliplatin,irinotecan,fluorouracil,and leucovorin(FOLFIRINOX)chemotherapy drastically improves survival of advanced pancreatic cancer ***,the efficacy of FOLFIRINOX as a second-line treatment after gemcitabine failure has not been tested *** investigated the feasibility and safety of attenuated FOLFIRINOX in patients with gemcitabine-refractory advanced pancreatic ***:A multicenter phase II prospective open-label,single-arm study was conducted at 14 *** with histologically proven invasive ductal pancreatic adenocarcinoma,a measurable or evaluable lesion,Eastern Cooperative Oncology Group performance status 0 or 1,adequate organ function,and aged 19 years or older were *** FOLFIRINOX consisted of oxaliplatin 65 mg/m2,irinotecan 135 mg/m2,and leucovorin 400 mg/m2 injected intravenously on day 1 and 5-fluorouracil 2000 mg/m2 continuously infused intravenously over 46 h on days 1-2,repeated every 2 *** primary endpoint was progression-free survival from the initiation of *** endpoints were the objective response rate,disease control rate,overall survival,safety,and *** estimated overall survival and progression-free survival using the Kaplan-Meier ***:We enrolled 39 patients from 14 *** objective response rate was 10.3%,while the disease control rate was 64.1%.The 6-month and 1-year overall survival rates were 59.0%and 15.4%,*** progression-free survival and overall survival were 3.8 months(95%confidence interval[CI]1.5-6.0 months)and 8.5 months(95%CI 5.6-11.4 months),*** 3 or 4 adverse events were neutropenia(41.0%),nausea(10.3%),anorexia(10.3%),anemia(7.7%),mucositis(7.7%),pneumonia/pleural effusion(5.1%),and fatigue(5.1%).One treatment-related death attributable to septic shock ***:Attenuated FOLFIRINOX may be promising as a second-line therapy for gemcitabin

关键词： Attenuated FOLFIRINOX Second-line Pancreatic cancer Gemcitabine

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辉光放电和压强对准直碳纳米管生长的影响

材料导报 2003年第10期17卷 80-82页

作者：王必本 soonil lee 郝伟严辉 Seungho Choi 北京工业大学应用数理学院北京100022 韩国亚洲大学分子科学与技术系北京工业大学量子材料实验室北京100022

利用负偏压增强热丝化学气相沉积系统在沉积有过渡层Ta和催化剂层NiFe的Si衬底上制备出准直碳纳米管,并用扫描电子显微镜研完了它们的生长和结构,结果表明辉光放电和压强对其生长和结构有极大的影响。若无辉光放电产生,碳纳米管是弯曲的... 详细信息

利用负偏压增强热丝化学气相沉积系统在沉积有过渡层Ta和催化剂层NiFe的Si衬底上制备出准直碳纳米管,并用扫描电子显微镜研完了它们的生长和结构,结果表明辉光放电和压强对其生长和结构有极大的影响。若无辉光放电产生,碳纳米管是弯曲的,有辉光放电时,碳纳米管是准直的。当压强较大时,准直碳纳米管较容易生长,并且随着压强的减小,其平均直径减小和平均长度增大。但压强为5Pa时,准直碳纳米管却不能够生长。最后,分析和讨论了辉光放电和压强对准直碳纳米管生长和结构的影响。

关键词：辉光放电化学气相沉积碳纳米管压强

Enhancing Identity Protection in Metaverse-Based Psychological Counseling System

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Computers, Materials & Continua 2024年第1期78卷 617-632页

作者： Jun lee Hanna lee Seong Chan lee Hyun Kwon Department of Game Software Hoseo UniversityAsan-si31499Korea Yatav Enter Seoul04799Korea Department of Artificial Intelligence and Data Science Korea Military AcademySeoul01805Korea

Non-face-to-face psychological counseling systems rely on network technologies to anonymize information regard-ing client ***,these systems often face challenges concerning voice data leaks and the suboptimal communication of the client’s non-verbal expressions,such as facial cues,to the *** study proposes a metaverse-based psychological counseling system designed to enhance client identity protection while ensuring efficient information delivery to counselors during non-face-to-face *** proposed systemincorporates a voicemodulation function that instantlymodifies/masks the client’s voice to safeguard their ***,it employs real-time client facial expression recognition using an ensemble of decision trees to mirror the client’s non-verbal expressions through their avatar in the metaverse *** system is adaptable for use on personal computers and smartphones,offering users the flexibility to access metaverse-based psychological counseling across diverse *** performance evaluation of the proposed system confirmed that the voice modulation and real-time facial expression replication consistently achieve an average speed of 48.32 frames per second or higher,even when tested on the least powerful smartphone ***,a total of 550 actual psychological counseling sessions were conducted,and the average satisfaction rating reached 4.46 on a 5-point *** indicates that clients experienced improved identity protection compared to conventional non-face-to-face metaverse counseling ***,the counselor successfully addressed the challenge of conveying non-verbal cues from clients who typically struggled with non-face-to-face psychological *** proposed systemholds significant potential for applications in interactive discussions and educational activities in the metaverse.

关键词： Metaverse counseling system face tracking identity protection

Pyrometallurgical recycling of end-of-life lithium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1554-1571页

作者： Juheon lee Kwang Won Park Il Sohn Sanghoon lee Department of Materials Science and Engineering Seoul 03722Korea Yonsei Industry Cooperation Center Yonsei UniversitySeoul 03722Korea RD Solution Wanju gunJeollabuk do 55365Korea

The global importance of lithium-ion batteries(LIBs)has been increasingly underscored with the advancement of high-performance energy storage ***,the end-of-life of these batteries poses significant challenges from environmental,economic,and resource management *** review paper focuses on the pyrometallurgy-based recycling process of lithium-ion batteries,exploring the fundamental understanding of this process and the importance of its *** on the high energy consumption and emission gas issues of the pyrometallurgical recycling process,we systematically analyzed the capital-intensive nature of this process and the resulting technological ***,we conducted an in-depth discussion on the future research directions to overcome the existing technological barriers and *** review will provide valuable insights for researchers and industry stakeholders in the battery recycling field.

关键词： spent lithium-ion batteries recycling sustainability lithium valuable metal

Generalized polynomial chaos expansion by reanalysis using static condensation based on substructuring

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 819-836页

作者： D.lee S.CHANG J.lee Department of Automotive Engineering Hanyang UniversitySeoul 04763Republic of Korea School of Mechanical Engineering Chungnam National UniversityDaejeon 34134Republic of Korea Department of Mechanical Robotics and Energy EngineeringDongguk UniversitySeoul 04620Republic of Korea

This paper presents a new computational method for forward uncertainty quantification(UQ)analyses on large-scale structural systems in the presence of arbitrary and dependent random *** method consists of a generalized polynomial chaos expansion(GPCE)for statistical moment and reliability analyses associated with the stochastic output and a static reanalysis method to generate the input-output data *** the reanalysis,we employ substructuring for a structure to isolate its local regions that vary due to random *** allows for avoiding repeated computations of invariant substructures while generating the input-output data *** substructuring with static condensation further improves the computational efficiency of the reanalysis without losing ***,the GPCE with the static reanalysis method can achieve significant computational saving,thus mitigating the curse of dimensionality to some degree for UQ under high-dimensional *** numerical results obtained from a simple structure indicate that the proposed method for UQ produces accurate solutions more efficiently than the GPCE using full finite element analyses(FEAs).We also demonstrate the efficiency and scalability of the proposed method by executing UQ for a large-scale wing-box structure under ten-dimensional(all-dependent)random inputs.

关键词： forward uncertainty quantification(UQ) generalized polynomial chaos expansion(GPCE) static reanalysis method static condensation substructuring

Regulating interfacial stability of SiO_(x) anode with fluoride-abundant solid–electrolyte interphase by fluorine-functionalized additive

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Rare Metals 2024年第2期43卷 671-681页

作者： Subin lee Taeeun Yim Advanced Batteries Laboratory Department of ChemistryIncheon National UniversityIncheon22012Republic of Korea Research Institute of Basic Sciences College of Natural ScienceIncheon National UniversityIncheon22012Republic of Korea

Silicon oxide(SiO_(x))has received remarkable attention as a next-generation battery material;however,the sudden decrease in the cycling retention constitutes a significant challenge in facilitating its ***(2,2,2-trifluoroethyl)phosphite(TTFP),which can control parasitic reactions such as the pulverization of SiO_(x)anode materials and electrolyte decomposition,has been proposed to improve the lifespan of the *** electrochemical reduction of TTFP results in solid-electrolyte interphase(SEI)layers that are mainly composed of LiF,which occur at a higher potential than the working potential of the SiO_(x)anode and carbonate-based *** electrolyte with TTFP exhibited a substantial improvement in cycling retention after 100 cycles,whereas the standard electrolyte showed acutely decreased *** thickness of the SiO_(x)anode with TTFP also changed only slightly without any considerable delamination spots,whereas the SiO_(x)anode without TTFP was prominently deformed by an enormous volume expansion with several internal *** cycled SiO_(x)anode with TTFP exhibited less increase in resistance after cycling than that in the absence of TTFP,in addition to fewer decomposition adducts in corresponding X-ray photoelectron spectroscopy(XPS)analyses between the cycled SiO_(x)*** results demonstrate that TTFP formed SEI layers at the SiO_(x)interface,which substantially reduced the pulverization of the SiO_(x)anode materials;in addition,electrolyte decomposition at the interface decreased,which led to improved cycling retention.

关键词： Lithium-ion batteries(LIBs) Silicon oxide anode Electrolyte Additive Solid-electrolyte interphases(SEI) Tris(2,2,2-trifluoroethyl)phosphite