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Bridging the Fabry–Perot cavity and asymmetric Berreman mode for long-wave infrared nonreciprocal thermal emitters

Science China Technological Sciences 2024年第10期67卷 3285-3293页

作者： chen zihe YU ShiLv HU Run School of Energy and Power Engineering Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Department of Applied Physics Kyung Hee University

The long-wave infrared band(8–14 μm) is essential for several applications, such as infrared detection, radiative cooling, and near-field heat transfer. However, according to Kirchhoff's law, the intrinsic balance between thermal absorption and emission limits the further improvement of photon energy conversion and thermal management. Thus, breaking Kirchhoff's balance and achieving nonreciprocal thermal radiation in the long-wave infrared band are necessary. Most existing designs for nonreciprocal thermal emitters rely on grating or photonic crystal structures to achieve nonreciprocal thermal radiation at narrow peaks, which are relatively complex and typically realize bands larger than 14 μm. Here, a sandwich structure consisting of an epsilon-nearzero(ENZ) magneto-optical layer(MOL), a dielectric layer(DL), and a metal layer is proposed to achieve a strong nonreciprocal effect in the long-wave infrared band, which is mainly attributed to the strengthening of the asymmetric Berreman mode by the Fabry–Perot cavity. In addition, the impact of the incident angle, DL thickness, and DL refractive index on the nonreciprocal thermal radiation has been investigated. Moreover, by replacing the ENZ MOL with the gradient ENZ MOL, the existence of the DL can further improve the nonreciprocity of the broadband nonreciprocal thermal radiation. The proposed work promotes the development and application of nonreciprocal energy devices.

关键词： long-wave infrared band nonreciprocal thermal radiation sandwich structure Fabry–Perot cavity asymmetric berreman mode

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Defect-mode and Fabry-Perot resonance induced multi-band nonreciprocal thermal radiation

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Science China(Technological Sciences) 2024年第8期67卷 2405-2412页

作者： chen zihe YU ShiLv YUAN cheng CUI XinYou HU Run School of Energy and Power Engineering Huazhong University of Science and TechnologyWuhan 430074China Wuhan Fiberhome Fuhua Electric Co. Ltd.Wuhan 430074China

According to Kirchhoff's radiation law,the spectral-directional absorptivity(α)and spectral-directional emissivity(e)of an object are widely believed to be identical,which places a fundamental limit on photonic energy conversion and *** introduction of Weyl semimetals and magneto-optical(MO)materials into photonic crystals makes it possible to violate Kirchhoff's law,but most existing work only report the unequal absorptivity and emissivity spectra in a single band,which cannot meet the requirements of most practical ***,we introduce a defect layer into the structure composed of one-dimensional(1D)magnetophotonic crystal and a metal layer,which realizes dual-band nonreciprocal thermal radiation under a 3-T magnetic field with an incident angle of 60°.The realization of dual-band nonreciprocal radiation is mainly due to the Fabry-Perot(FP)resonance occurring in the defect layer and the excitation of Tamm plasmon,which is proved by calculating the magnetic field *** addition,the effects of incident angle and structural parameters on nonreciprocity are also *** is more,the number of nonreciprocal bands could be further increased by tuning the defect layer *** the defect layer thickness increases to 18.2μm,tri-band nonreciprocal thermal radiation is realized due to the enhanced number of defect modes in the photonic band gap and the FP resonance occurring in the defect ***,the effect of defect location on nonreciprocity is also *** present work provides a new way for the design of multi-band or even broad-band nonreciprocal thermal emitters.

关键词： Kirchhoff's law multi-band nonreciprocal thermal radiation magnetophotonic crystal Tamm plasmon defect layer Fabry-Perot resonance

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A Li_(3)P nanoparticle dispersion strengthened ultrathin Li metal electrode for high energy density rechargeable batteries

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Nano Research 2024年第5期17卷 4031-4038页

作者： Lin Fu Xiancheng Wang Bao Zhang zihe chen Yuanjian Li Yongming Sun Provincial Guizhou Key Laboratory of Green Chemical and Clean Energy Technology School of Chemistry and Chemical EngineeringGuizhou UniversityGuiyang 550025China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore Institute of Materials Research and Engineering Agency for Science Technology and Research(A*STAR)Singapore 138634Singapore

Achievement of lithium(Li)metal anode with thin thickness(e.g.,≤30µm)is highly desirable for rechargeable high energy density ***,the fabrication and application of such thin Li metal foil electrode remain challenging due to the poor mechanical processibility and inferior electrochemical performance of metallic ***,mechanico-chemical synthesis of robust ultrathin Li/Li_(3)P(LLP)composite foils(~15µm)is demonstrated by employing repeated mechanical rolling/stacking operations using red P and metallic Li as raw *** in-situ formed Li+-conductive Li_(3)P nanoparticles in metallic Li matrix and their tight bonding strengthen the mechanical durability and enable the successful fabrication of free-standing ultrathin Li metal composite ***,it also reduces the electrochemical Li nucleation barrier and homogenizes Li plating/stripping *** matching to high-voltage LiCoO_(2),the full cell with a low negative/positive(N/P)capacity ratio of~1.5 offers a high energy density of~522 W·h·kg^(-1) at 0.5 C based on the mass of cathode and *** into account its facile manufacturing,potentially low cost,and good electrochemical performance,we believe that such an ultrathin composite Li metal foil design with nanoparticle-dispersion-strengthened mechanism may boost the development of high energy density Li metal batteries.

关键词： lithium metal anode high energy density battery mechanico-chemical synthesis ultrathin Li/Li_(3)P composite foil low negative/positive capacity ratio

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Suppressing dendritic metallic Li formation on graphite anode under battery fast charging

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Journal of Energy Chemistry 2024年第4期91卷 484-500页

作者： Shiyu Liu Baoqi Gu zihe chen Renming Zhan Xiancheng Wang Ruikang Feng Yongming Sun Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074HubeiChina

Lithium-ion batteries(LIBs)with fast-charging capability are essential for enhancing consumer experience and accelerating the global market adoption of electric ***,achieving fast-charging capability without compromising energy density,cycling lifespan,and safety of LIBs remains a significant challenge due to the formation of dendritic Li metal on graphite anode under fast charging *** view of this,the fundamentals for the dendritic metallic Li formation and the strategies for suppressing metallic Li plating based on analyzing the entire Li^(+)transport pathway at the anode including electrolyte,pore structure of electrode,and surface and bulk of materials are summarized and discussed in this ***,we highlight the importance of designing thick electrodes with fast Li^(+)transport kinetics and comprehensively understanding the interaction between solid electrolyte interphase(SEI)and Li^(+)migration in order to avoid the formation of dendritic Li metal in practical fast-charging ***,the regulation of Li metal plating with plane morphology,instead of dendritic structure,on the surface of graphite electrode under fast-charging condition is analyzed as a future direction to achieve higher energy density of batteries without safety concerns.

关键词： Safety Fast-charging lithium-ion batteries Dendritic metallic lithium Li^(+) transport

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超工业时代中的人

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长春理工大学学报（社会科学版） 2024年第4期37卷 61-65页

作者：吴琳陈姿和武汉理工大学马克思主义学院湖北武汉430070

超工业时代以数字技术为支撑,贯穿其中的资本逻辑与数字技术的普遍化在便利人类生产与生活的同时,也造成独特的贫困,即导致时间的贫困、象征的贫困、审美的贫困。大多数人趋向被设定的美,其结果必然失落美本身。超工业时代由数字技术所... 详细信息

超工业时代以数字技术为支撑,贯穿其中的资本逻辑与数字技术的普遍化在便利人类生产与生活的同时,也造成独特的贫困,即导致时间的贫困、象征的贫困、审美的贫困。大多数人趋向被设定的美,其结果必然失落美本身。超工业时代由数字技术所引发的贫困,以共时化取代历时化,导致物的趋同,于是人丧失了其独特性,这样的时代不仅失落了人,还破坏了共同体的稳定性。然而,破除超工业时代负面效应的力量就潜藏在数字技术与资本逻辑之中:数字技术的普遍化为群体性反思提供了可能;资本逻辑能够唤醒人的意识觉醒,在超工业化的今天,为人的本质的回归提供助力。

关键词：超工业时代资本逻辑贫困

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高性能地聚物基珊瑚砂浆的配合比设计与性能研究

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混凝土与水泥制品 2024年第8期 84-90页

作者：陈子禾何易王星尧中国电建集团山东电力建设有限公司山东济南250101 江苏苏博特新材料股份有限公司江苏南京211103

采用单一质心设计法研究了矿渣-偏高岭土-激发剂三元体系对地聚物流变性能和力学性能的影响,确定了最佳三元复配比例。在此基础上制备了高性能地聚物基珊瑚砂浆(HPGM),研究了其在MgSO_(4)与NaCl复合盐溶液侵蚀作用下的耐久性能及劣化机... 详细信息

采用单一质心设计法研究了矿渣-偏高岭土-激发剂三元体系对地聚物流变性能和力学性能的影响,确定了最佳三元复配比例。在此基础上制备了高性能地聚物基珊瑚砂浆(HPGM),研究了其在MgSO_(4)与NaCl复合盐溶液侵蚀作用下的耐久性能及劣化机理,并与水泥基珊瑚砂浆(PC)进行了对比。结果表明:当矿渣、偏高岭土、激发剂的掺量分别为29、23、48 kg时,地聚物具有优异的流变性能(塑性黏度5.47 Pa·s、屈服应力547.21 Pa)和力学性能(7 d抗压强度76.3 MPa、28 d抗压强度93.2 MPa);在90 d侵蚀周期中,PC出现了明显的石膏型侵蚀破坏现象,抗压强度损失达31.6%,孔隙率增大了43.7%;HPGM内部致密的凝胶结构有效抑制了膨胀性石膏和其他劣化产物的形成,同时水化产物中的C-(A)-S-H凝胶和类水滑石相吸附了部分游离Cl-,使得HPGM在90 d侵蚀周期中未出现明显的侵蚀破坏现象,其抗压强度损失为12.0%,孔隙率增大了16.2%。

关键词：单一质心设计法流变性能力学性能耐蚀性高性能地聚物基珊瑚砂浆(HPGM)

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Insights on“nitrate salt”in lithium anode for stabilized solid electrolyte interphase

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Carbon Energy 2022年第1期4卷 12-20页

作者： Lin Fu Xiancheng Wang zihe chen Yuanjian Li Eryang Mao Zhi Wei Seh Yongming Sun Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhanChina Institute of Materials Research and Engineering Agency for ScienceTechnology and Research(A*STAR)SingaporeSingapore

A Li/KNO_(3) composite(LKNO),with KNO_(3) uniformly implanted in bulk metallic Li,is fabricated for battery anode via a facile mechanical kneading approach,which exhibits high Coulombic efficiency and prolonged cycle *** mechanism behind the enhanced electrochemical performance of the“salt-in-metal”composite is investigated,where KNO_(3) in metallic Li composite electrode would be sustainably released into the *** presence of NO_(3)-stabilizes the solid electrolyte interphase by producing functional Li_(3)N,LiNxOy,and Li_(2)O species.K^(+)from KNO_(3) also helps to form an electrostatic shield after its adsorption on the electrode protrusions,which suppresses the dendritic growth of metallic *** the above advantages,uniform Li plating with dense and planar structure is realized for the LKNO *** findings reveal a deep understanding of the effect of the“saltin-metal”anode and provide new insights into the use of nitrate additives for high-energy-density Li metal batteries.

关键词： electrostatic shield Li metal battery Li/KNO_(3)composite salt-in-metal stabilized solid electrolyte interphase sustained release

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Stress-Regulation Design of Lithium Alloy Electrode toward Stable Battery Cycling

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Energy & Environmental Materials 2023年第1期6卷 184-191页

作者： Chunhao Li Shuibin Tu Xin Ai Siwei Gui zihe chen Wenyu Wang Xiaoxiao Liu Yuchen Tan Hui Yang Yongming Sun Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Material Processing and Die&Mould Technology Department of MechanicsSchool of Aerospace EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Metallic tin(Sn)foil is a promising candidate anode for lithium-ion batteries(LIBs)due to its metallurgical processability and high ***,it suffers low initial Coulombic efficiency and inferior cycling stability due to its uneven alloying/dealloying reactions,large volume change and stress,and fast electrode structural ***,we report an undulating LiSn electrode fabricated by a scalable two-step procedure involving mechanical lithography and chemical prelithiation of Sn *** the combination of experimental measurements and chemo-mechanical simulations,it was revealed the obtained undulating LiSn/Sn electrode could ensure better mechanical stability due to the pre-swelling state from Sn to Li x Sn and undulating structure of lithography in comparison with plane Sn,homogenize the electrochemical alloying/dealloying reactions due to the activated surface materials,and compensate Li loss during cycling due to the introduction of excess Li from Li_(x)Sn,thus enabling enhanced electrochemical *** cells consisting of undulating LiSn/Sn electrode with an active thickness of∼5 um displayed stable cycling over 1000 h at 1 mA cm^(-2) and 1 mAh cm^(-2) with a low average overpotential of<15 *** paired with commercial LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)(NCM622)cathode with high mass loading of 15.8 mg cm^(-2),the full cell demonstrated a high capacity of 2.4 mAh cm^(-2) and outstanding cycling stability with 84.9% capacity retention at 0.5 C after 100 *** work presents an advanced LiSn electrode with stress-regulation design toward high-performance LIBs,and sheds light on the rational electrode design and processing of other high-capacity lithium alloy anodes.

关键词： chemo-mechanical simulation lithium alloy lithium-ion batteries mechanical lithography stress regulation

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设施葡萄大棚灰霉病调查及空气中灰葡萄孢的致病性分析

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中外葡萄与葡萄酒 2024年第5期 62-68页

作者：陈子荷尹向田刘其宝李廷刚韩星魏彦锋王素娜袁丽芳河北工程大学河北邯郸056038 山东省葡萄研究院山东济南250100

为了明确设施葡萄灰霉病的发生情况,以及设施大棚空气中灰葡萄孢对葡萄的致病性,本研究对山东济阳和招远两地的6个葡萄大棚进行了灰霉病调查,利用大流量空气采样器采集棚内空气样品,对其中的灰葡萄孢进行分离、鉴定和致病力检测。结果显... 详细信息

为了明确设施葡萄灰霉病的发生情况,以及设施大棚空气中灰葡萄孢对葡萄的致病性,本研究对山东济阳和招远两地的6个葡萄大棚进行了灰霉病调查,利用大流量空气采样器采集棚内空气样品,对其中的灰葡萄孢进行分离、鉴定和致病力检测。结果显示,葡萄灰霉病在两基地的葡萄生长季均有发生,且8月灰霉病的病情指数最高,为11.22。通过对空气样本中的真菌进行分离鉴定和致病性分析发现,设施葡萄大棚空气中存在大量的灰霉病菌,该病原菌的分离率最高,为38.89%,且对多个葡萄品种具有致病力,但在不同葡萄品种间存在差异,其中对‘红地球’的致病力最强,对‘阳光玫瑰’的致病力最弱。本研究为设施葡萄灰霉病在空气中的传播提供了有力证据,为设施葡萄中病害的预警和防治奠定了一定的基础。

关键词：设施葡萄灰霉病空气微生物病原鉴定致病性

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Gelatin-Based Metamaterial Hydrogel Films with High Conformality for Ultra-Soft Tissue Monitoring

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Nano-Micro Letters 2024年第2期16卷 347-364页

作者： Yuewei chen Yanyan Zhou zihe Hu Weiying Lu Zhuang Li Ning Gao Nian Liu Yuanrong Li Jing He Qing Gao Zhijian Xie Jiachun Li Yong He State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China School of Mechanical Engineering Guizhou UniversityGuiyang 550025People’s Republic of China Stomatology Hospital School of StomatologyZhejiang University School of MedicineClinical Research Center for Oral Diseases of Zhejiang ProvinceKey Laboratory of Oral Biomedical Research of Zhejiang ProvinceCancer Center of Zhejiang UniversityHangzhou 310006People’s Republic of China

Implantable hydrogel-based bioelectronics(IHB)can precisely monitor human health and diagnose ***,achieving biodegradability,biocompatibility,and high conformality with soft tissues poses significant challenges for *** is the most suitable candidate for IHB since it is a collagen hydrolysate and a substantial part of the extracellular matrix found naturally in most *** study used 3D printing ultrafine fiber networks with metamaterial design to embed into ultra-low elastic modulus hydrogel to create a novel gelatin-based conductive film(GCF)with mechanical *** regulation of GCF nearly covers soft tissue mechanics,an elastic modulus from 20 to 420 kPa,and a Poisson’s ratio from-0.25 to *** negative Poisson’s ratio promotes conformality with soft tissues to improve the efficiency of biological *** GCF can monitor heartbeat signals and respiratory rate by determining cardiac deformation due to its high ***,the gelatin characteristics of the biodegradable GCF enable the sensor to monitor and support tissue *** GCF metamaterial design offers a unique idea for bioelectronics to develop implantable sensors that integrate monitoring and tissue repair and a customized method for endowing implanted sensors to be highly conformal with soft tissues.

关键词： Implantable hydrogel-based bioelectronics Conformality 3D printing Metamaterial design

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