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Light-Material Interactions Using Laser and Flash Sources for Energy Conversion and Storage Applications
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作者 Jung Hwan Park Srinivas Pattipaka +10 位作者 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 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第12期468-514,共47页
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... 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. 展开更多
关键词 LIGHT Light-material interaction NANOMATERIALS Energy conversion and storage devices
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Flexible mica films coated by magnetron sputtered insulating layers for high-temperature capacitive energy storage
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作者 Chao Yin Tiandong Zhang +4 位作者 changhai Zhang Yue Zhang chang kyu jeong Geon-Tae Hwang Qingguo Chi 《SusMat》 SCIE EI 2024年第5期154-162,共9页
High-temperature energy storage performance of dielectric capacitors is cru-cial for the next generation of power electronic devices.However,conduction losses rise sharply at elevated temperature,limiting the applicat... High-temperature energy storage performance of dielectric capacitors is cru-cial for the next generation of power electronic devices.However,conduction losses rise sharply at elevated temperature,limiting the application of energy storage capacitors.Here,the mica films magnetron sputtered by different insulating layers are specifically investigated,which exhibit the excellent high-temperature energy storage performance.The experimental results revealed that the PbZrO3/Al2O3/PbZrO3(PZO/AO/PZO)interface insulating layers can effec-tively reduce the high-temperature leakage current and conduction loss of the composite films.Consequently,the ultrahigh energy storage density(Wrec)and charge‒discharge efficiency(η)can be achieved simultaneously in the flexi-ble mica-based composite films.Especially,PZO/AO/PZO/mica/PZO/AO/PZO(PAPMPAP)films possess excellent Wrec of 27.5 J/cm3 andηof 87.8%at 200◦C,which are significantly better than currently reported high-temperature capaci-tive energy storage dielectric materials.Together with outstanding power density and electrical cycling stability,the flexible films in this work have great appli-cation potential in high-temperature energy storage capacitors.Moreover,the magnetron sputtering technology can deposit large-area nanoscale insulating layers on the surface of capacitor films,which can provide technical support for the industrial production of capacitors. 展开更多
关键词 energy storage high temperature insulating layer magnetron sputtering MICA
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Flexible highly-effective energy harvester via crystallographic and computational control of nanointerfacial morphotropic piezoelectric thin film 被引量:3
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作者 chang kyu jeong Sung Beom Cho +7 位作者 Jae Hyun Han Dae Yong Park Suyoung Yang Kwi-II Park Jungho Ryu Hoon Sohn Yong-Chae Chung Keon Jae Lee 《Nano Research》 SCIE EI CAS CSCD 2017年第2期437-455,共19页
Controlling the properties of piezoelectric thin films is a key aspect for designing highly efficient flexible electromechanical devices. In this stud)~ the crystallographic phenomena of PbZr1-xTixO3 (PZT) thin fil... Controlling the properties of piezoelectric thin films is a key aspect for designing highly efficient flexible electromechanical devices. In this stud)~ the crystallographic phenomena of PbZr1-xTixO3 (PZT) thin films caused by distinguished interfacial effects are deeply investigated by overlooking views, including not only an experimental demonstration but also ab initio modeling. The polymorphic phase balance and crystallinity, as well as the crystal orientation of PZT thin films at the morphotropic phase boundary (MPB), can be stably modulated using interfacial crystal structures. Here, interactions with MgO stabilize the PZT crystallographic system well and induce the texturing influences, while the PZT film remains quasi-stable on a conventional A1203 wafer. On the basis of this fundamental understanding, a high-output flexible energy harvester is developed using the controlled-PZT system, which shows significantly higher performance than the unmodified PZT generator. The voltage, current, and power densities are improved by 556%, 503%, and 822%, respectively, in comparison with the previous flexional single-crystalline piezoelectric device. Finally, the improved flexible generator is applied to harvest tiny vibrational energy from a real traffic system, and it is used to operate a commercial electronic unit. These results clearly indicate that atomic-scale designs can produce significant impacts on macroscopic applications. 展开更多
关键词 energy harvesting morphotropic phaseboundary (MPB) PIEZOELECTRIC first-principles calculation lead zirconium titanate(PZT)
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