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Light-Material Interactions Using Laser and Flash Sources for Energy Conversion and Storage Applications

Nano-Micro Letters 2024年第12期16卷 468-514页

作者： Jung Hwan Park Srinivas Pattipaka geon-tae hwang Minok Park Yu Mi Woo Young Bin Kim Han Eol Lee Chang Kyu Jeong Tiandong Zhang Yuho Min Kwi-Il Park Keon Jae Lee Jungho Ryu Department of Mechanical Engineering(Department of Aeronautics Mechanical and Electronic Convergence Engineering)Kumoh National Institute of Technology61Daehak-RoGumiGyeongbuk 39177Republic of Korea Department of Materials Science and Engineering Pukyong National University45Yongso-RoNam-GuBusan 48513Republic of Korea Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea Division of Advanced Materials Engineering Jeonbuk National UniversityJeonju 54896JeonbukRepublic of Korea School of Electrical and Electronic Engineering Harbin University of Science and TechnologyHarbin 150080People’s Republic of China Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbin 150080People’s Republic of China Department of Materials Science and Metallurgical Engineering Kyungpook National University80 Daehak-RoBuk-GuDaegu 41566Republic of Korea School of Materials Science and Engineering Yeungnam UniversityDaehak-RoGyeongsan-Si 38541Gyeongsangbuk-doRepublic of Korea

This review provides a comprehensive overview of the progress in light-material interactions(LMIs),focusing on lasers and flash lights for energy conversion and storage *** discuss intricate LMI parameters such as light sources,interaction time,and fluence to elucidate their importance in material *** addition,this study covers various light-induced photothermal and photochemical processes ranging from melting,crystallization,and ablation to doping and synthesis,which are essential for developing energy materials and ***,we present extensive energy conversion and storage applications demonstrated by LMI technologies,including energy harvesters,sensors,capacitors,and *** the several challenges associated with LMIs,such as complex mechanisms,and high-degrees of freedom,we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.

关键词： Light Light-material interaction Nanomaterials Energy conversion and storage devices

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Light-Material Interactions Using Laser and Flash Sources for Energy Conversion and Storage Applications

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Nano-Micro Letters 2024年第12期 476-522页

作者： Jung Hwan Park Srinivas Pattipaka geon-tae hwang Minok Park Yu Mi Woo Young Bin Kim Han Eol Lee Chang Kyu Jeong Tiandong Zhang Yuho Min Kwi-Il Park Keon Jae Lee Jungho Ryu Department of Mechanical Engineering(Department of Aeronautics Mechanical and Electronic Convergence Engineering) Kumoh National Institute of Technology Department of Materials Science and Engineering Pukyong National University Energy Technologies Area Lawrence Berkeley National Laboratory Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology(KAIST) Division of Advanced Materials Engineering Jeonbuk National University School of Electrical and Electronic Engineering Harbin University of Science and Technology Key Laboratory of Engineering Dielectrics and Its Application Ministry of Education Harbin University of Science and Technology Department of Materials Science and Metallurgical Engineering Kyungpook National University School of Materials Science and Engineering Yeungnam University

This review provides a comprehensive overview of the progress in light-material interactions(LMIs), focusing on lasers and flash lights for energy conversion and storage applications. We discuss intricate LMI parameters such as light sources, interaction time, and fluence to elucidate their importance in material processing. In addition, this study covers various light-induced photothermal and photochemical processes ranging from melting, crystallization, and ablation to doping and synthesis, which are essential for developing energy materials and devices. Finally, we present extensive energy conversion and storage applications demonstrated by LMI technologies, including energy harvesters, sensors, capacitors, and batteries. Despite the several challenges associated with LMIs, such as complex mechanisms, and high-degrees of freedom, we believe that substantial contributions and potential for the commercialization of future energy systems can be achieved by advancing optical technologies through comprehensive academic research and multidisciplinary collaborations.

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Heterostructures in two-dimensional colloidal metal chalcogenides:Synthetic fundamentals and applications

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Nano Research 2019年第8期12卷 1750-1769页

作者： Yuho Min Eunmi Im geon-tae hwang Jong-Woo Kim Cheol-Woo Ahn Jong-Jin Choi Byung-Dong Hahn Joon-Hwan Choi Woon-Ha Yoon Dong-Soo Park Dong Choon Hyun geon Dae Moon Functional Ceramics Department Powder & Ceramics DivisionKorea Institute of Materials Science (KIMS)ChangwonGyeongnam51508Republic of Korea Department of Polymer Science and Engineering Kyungpook National UniversityDaegu41566Republic of Korea Dongrtam Regional Division Korea Institute of Industrial TechnologyBusan46938Republic of Korea

As a new class of two-dimensional materials, two-dimensional (2D) heterostructures constructed from metal chalcogenides (MCs) have been gaining tremendous attention due to their unprecedented physical and chemical phenomena, mainly originated from their distinct structural features such as composition, architecture type, spatial arrangement of each component, crystal structure, exposed facet and interface, dimensionality in their heterostructures. Towards the realization of practical applications, synthetic approaches need a rational design with a variety of architecture types including laterally-combined, vertically-aligned, and conformally-coated 2D MC heterostructures. Among various synthetic routes, solution-based synthesis is thought of as an alternative to fabrication through high-cost setups since it can control those structural features in a cheap fashion. This review presents recent progress on solution-based synthesis to produce various 2D MC heterostructures with a focus on the synthetic fundamentals in terms of thermodynamic and kinetic aspects related to the growth mechanism. Four different synthetic approaches are reviewed: seeded growth, cation exchange reaction, colloidal atomic layer deposition, direct synthesis including one-step process and modified electrochemical method. We also provide some representative applications of 2D MC heterostructures and their hybrid composites in various fields including optoelectronics, thermoelectrics, catalysis, and battery. Finally, we offer an insight into challenges and future directions in a synthetic improvement of 2D MC heterostructures.

关键词： metal chalcogenide heterostructure anisotropic nanomaterials two-dimensional (2D) nanomaterials solution-based synthesis

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Recent progress and future research directions for electrochromic zinc-ion batteries

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Journal of Energy Chemistry 2024年第3期90卷 220-232,I0007页

作者： tae Gwang Yun Byungil hwang Jun Young Cheong Department of Molecular Science and Technology Ajou UniversitySuwon 16499Republic of Korea School of Integrative Engineering Chung-Ang UniversitySeoul 06974Republic of Korea Bavarian Center for Battery Technology(Bay Batt)and Department of Chemistry University of Bayreuth95447 BayreuthGermany

In recent times,future energy storage systems demand a multitude of functionalities beyond their traditional energy storage *** line with this technological shift,there is active research and development of electrochromic-energy storage systems designed to visualize electrochemical charging and discharging *** conventional electrochromic-energy storage devices primarily integrated supercapacitors,known for their high power density,to enable rapid color ***,the low energy density of supercapacitors restricts overall energy storage capacity,acting as a significant barrier to expanding the application range of such *** this review,we introduce electrochromic zinc(Zn)-ion battery systems,which effectively overcome the limitation of low energy density,and provide illustrative examples of their applicability across diverse *** many recent research works are present for electrochromic Zn-ion batteries,little review has so far taken *** objective is to discuss on the current progress and future directions for electrochromic Zn-ion batteries,which are applicable for wearable electronics applications and energy storage *** review provides an initial milestone for future researchers in electrochromic energy storage and zinc-ion batteries,which will lead to a stream of future works related to them.

关键词： Electrochromic Zn-ion battery Flexible Transition metal oxide Conductive polymer

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Effects of Initial and Boundary Conditions on Heavy Rainfall Simulation over the Yellow Sea and the Korean Peninsula:Comparison of ECMWF and NCEP Analysis Data Effects and Verification with Dropsonde Observation

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Advances in Atmospheric Sciences 2024年第9期41卷 1787-1803页

作者： Jiwon hwang Dong-Hyun CHA Donghyuck YOON tae-Young GOO Sueng-Pil JUNG Department of Civil Urban Earth and Environmental Engineering Ulsan National Institute of Science and TechnologyUlsan 44919South Korea Program in Atmospheric and Oceanic Sciences Princeton UniversityPrincetonNew Jersey 08544USA National Institute of Meteorological Sciences NIMSJeju 63568South Korea

This study evaluated the simulation performance of mesoscale convective system(MCS)-induced precipitation,focusing on three selected cases that originated from the Yellow Sea and propagated toward the Korean *** evaluation was conducted for the European Centre for Medium-Range Weather Forecasts(ECMWF)and National Centers for Environmental Prediction(NCEP)analysis data,as well as the simulation result using them as initial and lateral boundary conditions for the Weather Research and Forecasting ***,temperature and humidity profiles from 3D dropsonde observations from the National Center for Meteorological Science of the Korea Meteorological Administration served as validation *** showed that the ECMWF analysis consistently had smaller errors compared to the NCEP analysis,which exhibited a cold and dry bias in the lower levels below 850 *** model,in terms of the precipitation simulations,particularly for high-intensity precipitation over the Yellow Sea,demonstrated higher accuracy when applying ECMWF analysis data as the initial *** advantage also positively influenced the simulation of rainfall events on the Korean Peninsula by reasonably inducing convective-favorable thermodynamic features(i.e.,warm and humid lower-level atmosphere)over the Yellow *** conclusion,this study provides specific information about two global analysis datasets and their impacts on MCS-induced heavy rainfall simulation by employing dropsonde observation ***,it suggests the need to enhance the initial field for MCS-induced heavy rainfall simulation and the applicability of assimilating dropsonde data for this purpose in the future.

关键词： initial conditions dropsonde heavy rainfall forecast global model analysis evaluation

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Anode surface engineering of zinc-ion batteries using tellurium nanobelt as a protective layer for enhancing energy storage performance

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Journal of Energy Chemistry 2024年第5期92卷 113-123页

作者： Soobeom Lee Yeonjin Je Boeun Seok Hyun tae Kim Yong-Ryun Jo Soong Ju Oh Byoungyong Im Dae Guen Kim Sang-Soo Chee geon-Hyoung An Department of Energy System Engineering Gyeongsang National UniversityJinju 52725Republic of Korea Nano Convergence Materials Center Korea Institute of Ceramic Engineering and Technology(KICET)Jinju 52851Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea School of Materials Science and Engineering Gyeongsang National UniversityJinju 52828Republic of Korea GIST Advanced Insitute of Instrumental Analysis(GAIA) Electron Microscopy LaboratoryGwangju Institute of Science and TechnologyGwangju 61005Republic of Korea Center for Advanced Materials and Processing Institute for Advanced EngineeringYongin 17180Republic of Korea Department of Energy Engineering Gyeongsang National UniversityJinju 52725Republic of Korea

Over the years,zinc-ion batteries(ZIBs)have attracted attention as a promising next-generation energy storage technology because of their excellent safety,long cycling performance,eco-friendliness,and high-power ***,issues,such as the corrosion and dissolution of the Zn anode,limited wet-tability,and lack of sufficient nucleation sites for Zn plating,have limited their practical *** introduction of a protective layer comprising of tellurium(Te)nanobelts onto the surface of Zn anode has emerged as a promising approach to overcome these limitations and improve the electrochemical behav-ior by enhancing the safety and wettability of ZIBs,as well as providing numerous nucleation sites for Zn *** the presence of a Te-based protective layer,the energy power density of the surface-engineered Zn anode improved significantly(ranging from 310 to 144 W h kg^(-1),over a power density range of 270 to 1,800 W kg^(-1)),and the lifespan capability was *** results demonstrate that the proposed strategy of employing Te nanobelts as a protective layer holds great promise for enhancing the energy storage performance of zIBs,making them even more attractive as a viable energy storage solution forthefuture.

关键词： Zn ion battery Anode Protective layer Tellurium Nanobelt

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Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

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Nano-Micro Letters 2024年第6期16卷 1-13页

作者： Jeong‑Woong Shin Dong‑Je Kim tae‑Min Jang Won Bae Han Joong Hoon Lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok Kang Jun Hyeon Lim Chan‑Hwi Eom Amay J.Bandodkar Hanul Min Suk‑Won hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Substrates or encapsulants in soft and stretchable formats are key components for transient,bioresorbable electronic systems;however,elastomeric polymers with desired mechanical and biochemical properties are very limited compared to nontransient ***,we introduce a bioresorbable elastomer,poly(glycolide-co-ε-caprolactone)(PGCL),that contains excellent material properties including high elongation-at-break(<1300%),resilience and toughness,and tunable dissolution *** of PGCLs as polymer matrices,in combination with conducing polymers,yields stretchable,conductive composites for degradable interconnects,sensors,and actuators,which can reliably function under external *** of device components with wireless modules demonstrates elastic,transient electronic suture system with on-demand drug delivery for rapid recovery of postsurgical wounds in soft,time-dynamic tissues.

关键词： Biodegradable elastomer Conductive polymer composites Biomedical device Transient electronics

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Investigations for the Surface of the Oxide Semiconductor Changes by Reduction

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Chinese Physics Letters 2016年第5期33卷 84-87页

作者： Bonghoon Kang Sung-tae hwang Department of Visual Optics Far East UniversityChungcheongbuk-doKorea College of Engineering Hansung University

Oxide semiconductor SrTiO3 single crystals are exposed to a reducing atmosphere H2/N2 to induce the reduction of Ti4＋ to Ti3＋ and the release of oxygen from the lattice compensating the reduction of the Ti ions. In a reducing atmosphere H2/N2 the optical edge brings about a red shift. The infrared reflection spectra suggest that the （11） STO single crystal surface can be terminated by the domain of the SrO or TiO2 alternative layer during the reduction. The anisotropy and asymmetry of optical second-harmonic intensity explain a slight shrinkage. The dielectric constant reaches about 6000 and shows almost frequency dependence at all temperatures. With the increasing temperature, the dielectric constant increases rapidly. The high temperature region and low temperature region have activation energies of 0.89 and 1.04, respectively.

关键词： of on in STO as by for

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Electrochemically metal-doped reduced graphene oxide films:Properties and applications

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Journal of Materials Science & Technology 2020年第5期40卷 72-80页

作者： Myung-Sic Chae tae Ho Lee Kyung Rock Son tae Hoon Park Kyo Seon hwang tae Geun Kim School of Electrical Engineering Korea UniversityAnam-ro 145Seongbuk-guSeoul 02841South Korea Department of Clinical Pharmacology and Therapeutics College of MedicineKyung Hee UniversitySeoul 02447South Korea

The fine control of doping levels in graphene materials such as reduced graphene oxide(RGO)is important to properly manipulate their ambipolar transport characteristics for various device ***,conventional doping methods involve complex chemical reactions,large-scale doping processes,and poor ***,a simple and controllable electrochemical doping treatment(EDT),performed via the conductive channels created at the RGO surface by the application of an electric field,is introduced to tailor the electrical properties of RGO films.X-ray photoelectron spectroscopy and Raman spectroscopy measurements are performed to detect the presence of Ni atoms in RGO films after the EDT(EDT-RGO).Then,EDT-RGO field-effect transistors(FETs)are fabricated with different doping areas(0 to 100%fractional area)on the RGO active channel to investigate the effect and selective-area doping capability of the *** to p-type doping compensation by the intercalated Ni atoms,the electron mobility of the EDT-RGO FET decreases from 1.40 to 0.12 cm2 V-1s-1 compared with that of the undoped RGO-FET,leading to the conversion from ambipolar to unipolar p-type transfer characteristics.

关键词： Reduced graphene oxide Electrochemical doping treatment Electrical breakdown process Field-effect transistor

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Bedside index for severity in acute pancreatitis:comparison with other scoring systems in predicting severity and organ failure

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Hepatobiliary & Pancreatic Diseases International 2013年第6期12卷 645-650页

作者： Ji Young Park tae Joo Jeon tae Hwan Ha Jin tae hwang Dong Hyun Sinn tae-Hoon Oh Won Chang Shin Won-Choong Division of Gastroenterology Department of Internal MedicineInje University Sanggye Paik Hospital

BACKGROUND:The early identification of severe acute pancreatitis is important for the management and for improving *** bedside index for severity in acute pancreatitis(BISAP)has been considered as an accurate method for risk stratification in patients with acute *** study aimed to evaluate the comparative usefulness of the ***:We retrospectively analyzed 303 patients with acute pancreatitis diagnosed at our hospital from March 2007to December ***,APACHE-II,Ranson criteria,and CT severity index(CTSI)of all patients were *** stratified the number of patiants with severe pancreatitis,pancreatic necrosis,and organ failure as well as the number of deaths by BISAP *** used the area under the receiveroperating curve(AUC)to compare BISAP with other scoring systems,C-reactive protein(CRP),hematocrit,and body mass index(BMI)with regard to prediction of severe acute pancreatitis,necrosis,organ failure,and ***:Of the 303 patiants,31(10.2%)were classified as having severe acute *** failure occurred in 23(7.6%)patients,pancreatic necrosis in 40(13.2%),and death in6(2.0%).A BISAP score of 2 was a statistically significant cutoff value for the diagnosis of severe acute pancreatitis,organ failure,and *** for BISAP predicting severe pancreatitis and death were 0.80 and 0.86,respectively,which were similar to those for APACHE-II(0.80,0.87)and Ranson criteria(0.74,0.74)and greater than AUCs for CTSI(0.67,0.42).The AUC for organ failure predicted by BISAP,APACHE-II,Ranson criteria,and CTSI was 0.93,0.95,0.84 and 0.57,*** for BISAP predicting severity,organ failure,and death were greater than those for CRP(0.69,0.80,0.72),hematocrit(0.45,0.35,0.14),and BMI(0.41,0.47,0.17).CONCLUSION:The BISAP predicts severity,death,and especially organ failure in acute pancreatitis as well as APACHE-II does and better than Ranson criteria,CTSI,CRP,hematocrit,and BMI.

关键词： acute pancreatitis scoring system pancreatic necrosis organ failure

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