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In situ polymerization of poly(3,4-ethylenedioxythiophene)protective layer towards stable zinc anode

Nano Research 2025年第1期18卷 382-394页

作者： Debin Luo Peng Zhou Xiaowei Lv Panpan Sun Xiaohua Sun Hewei Zhao College of materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China Hubei Three Gorges laboratory Yichang 443007China School of Chemistry Beihang UniversityBeijing 100191China

Aqueous zinc-ion devices are considered promising candidates for energy storage due to their high safety,low cost and relatively high energy ***,the dendrite growth,hydrogen evolution reaction(HER)and corrosion of the zinc anode significantly limit the development of Zn-ion ***,an inexpensive poly(3,4-ethylenedioxythiophene)(PEDOT)protective layer was constructed in situ on the Zn surface using electropolymerization to suppress dendrite growth and side reactions,thereby enhancing the reversibility of *** and theoretical calculations revealed that this hydrophilic protective layer promotes the desolvation process of hydrated Zn^(2+)and facilitates the transport of zinc ions,thus improving the thermodynamic and kinetic properties of Zn^(2+)deposition and inhibiting interfacial side ***,the optimized PEDOT@Zn symmetric battery exhibited a cycling stability exceeding 1250 h at 0.5 mA·cm^(-2)and 0.25 mAh·cm^(-2),with a significantly reduced overpotential(from 91.8 to 35 mV).With the assistance of the PEDOT protective layer,the PEDOT@Zn//Cu battery maintained approximately 99.5%Coulombic efficiency after 450 ***-situ scanning electron microscopy(SEM)and in situ optical microscopy characterizations further confirmed that the PEDOT protective layer can effectively suppress the growth of zinc ***,the Zn-ion capacitors assembled by the PEDOT@Zn and activated carbon also demonstrated outstanding cycling stability.

关键词： zinc-ion devices zinc anode poly(3 4-ethylenedioxythiophene)(PEDOT) dendrite desolvation process

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An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao key laboratory of advanced Green Functional materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial key laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State key laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic materials and devices State key laboratory of Luminescent materials and devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin key laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State key laboratory of Silicon materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management

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Role of localized phonon vibration in luminescence performance of Pr doped Ba(Mg_(0.28)Zr_(0.16)Ta_(0.56))O_(3)transparent ceramics

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Journal of Rare Earths 2022年第11期40卷 1728-1733,I0003页

作者： Zihao Wang Zicheng Wen Fei Tang Kangzhen Tian Chuandong Zuo Lizhen Zhang jiangsu key laboratory of advanced laser materials and devices School of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China Songshan Lake materials laboratory.Dongguan 523808 China

Oxygen-assisted high temperature solid-state reaction approach was employed for the fabrication of Pr activated Ba(Mg_(0.28)Zr_(0.16)Ta_(0.56))O_(3)transparent ceramic *** refinement of X-ray diffraction pattern was carried out to reveal the lattice parameters and crystal structural *** the blue-light excitation ofλ=473 nm,the phosphor exhibits a sharp intense red emission centered at645 nm,accompanied by several other weak *** evolution with temperature shows a significant luminescence quenching behavior,and the underlying multi-phonon interaction with optical center is revealed by proposing an unprecedent theoretical calculation *** a phonon effect is further confirmed from the red-shift of peak position with temperature,and the involved phonon energy of50.7 meV is determined from Raman scattering *** interestingly,the fitted results of transient-state PL spectra show a fluctuation of luminescence lifetime at various temperatures,further indicating a significant effect of phonon vibration in the system.

关键词： Luminescence quenching Phonon vibration Oxygen-assisted sintering PBMZT transparent ceramics Rare earths

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Polarization-Insensitive Magnetic Quadrupole-Shaped and Electric Quadrupole-Shaped Fano Resonances Based on a Plasmonic Composite Structure

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Chinese Physics Letters 2016年第7期33卷 68-71页

作者：董晨李宝李韩笑刘慧陈孟琪李冬冬闫长春张道华 jiangsu key laboratory of advanced laser materials and devices School of Physics and Electronic EngineeringJiangsu Normal University School of Electrical and Electronic Engineering Nanyang Technological University

A combined structure with the unit cell consisting of four sub-units with 90° rotation in turn is designed. Each of sub-units is composed of two gold rods in transverse arrangement and one gold rod in longitudinal arrangement. Simulating electromagnetic responses of the structure, we verify that the structure exhibits the double Fano resonances, which originate from the coupling between magnetic quadrupoles and electric dipoles and the coupling between electric quadrupoles and electric dipoles. Simulation results also demonstrate that the structure is polarization-insensitive and shows an analogue of electromagnetically induced transparency at the two Fano resonances. Such a plasmonic structure has potential applications in photoelectric elements.

关键词： of is it in Polarization-Insensitive Magnetic Quadrupole-Shaped and Electric Quadrupole-Shaped Fano Resonances Based on a Plasmonic Composite Structure mode that on

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Mid-infrared luminescence of Dy^(3+)-doped Ga_2S_3–Sb_2S_3–CsI chalcohalide glasses

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Chinese Physics B 2018年第7期27卷 463-467页

作者： Anping Yang Jiahua Qiu Mingjie Zhang Mingyang Sun Zhiyong Yang jiangsu key laboratory of advanced laser materials and devices School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou 221116 China State key laboratory of Silicate materials for Architectures Wuhan University of Technology Wuhan 430070 China

The mid-infrared （MIR） luminescent properties of Dy3＋ ions in a new chalcohalide glass host, Ga2S3-Sb2S3-CsI, are investigated; and the suitability of the doped glass for MIR fiber lasers is evaluated. The Dy3＋-doped chalcohalide glasses exhibit good thermal stability and intense MIR emissions around 2.96 μm and 4.41 μm. These emissions show quantum efficiencies （η） as high as ～ 60%, and have relatively large stimulated emission cross sections （σem）. The low phonon energy （～ 307 cm-1） of the host glass accounts for the intense MIR emissions, as well as the high η. These favorable thermal and emission properties make the Dy3＋-doped Ga2S3-Sb2S3-CsI glasses promising materials for MIR fiber amplifiers or lasers.

关键词： chalcogenide glasses rare earth emission property mid-infrared laser

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Structural evolution study of additions of Sb_2S_3 and CdS into GeS_2 chalcogenide glass by Raman spectroscopy

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Chinese Physics B 2017年第10期26卷 255-261页

作者：郭海涛张鸣杰许彦涛肖旭升杨志勇 jiangsu key laboratory of advanced laser materials and devices School of Physics and Electronic EngineeringJiangsu Normal University State key laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of Sciences (CAS) State key laboratory of Silicate materials for Architectures Wuhan University of Technology

The structures of pseudo-binary GeS2-Sb2S3, GeS2-CdS, Sb2S3-CdS, and pseudo-ternary GeS2-Sb2S3-CdS chalco- genide systems are systematically investigated by Raman spectroscopy. It is shown that a small number of [S3Ge-GeS3] structural units （SUs） and -S-S-/S8 groups exist simultaneously in GeS2 glass which has a three-dimensional continuous network backbone consisting of cross-linked corner-sharing and edge-sharing [GeS4] tetrahedra. When Sb2S3 is added into GeS2 glass, the network backbone becomes interconnected [GeS4] tetrahedra and [SbS3] pyramids. Moreover, Ge atoms in [S3Ge-GeS3] SUs tend to capture S atoms from Sb2S3, leading to the formation of [S2Sb-SbS2] SUs. When CdS is added into GeS2 glass, [Cd4GeS6] polyhedra are formed, resulting in a strong crystallization tendency. In addition, Ge atoms in [S3Ge-GeS3] SUs tend to capture S atoms from CdS, resulting in the dissolution of Ge-Ge bond. Co-melting of Sb2S3 or CdS with GeS2 reduces the viscosity of the melt and improves the homogeneity of the glass. The GeS2 glass can only dissolve up to 10-mol% CdS without crystallization. In comparison, GeS2-SbzS3 glasses can dissolve up to 20-mo1% CdS, implying that Sb2S3 could delay the construction of [Cd4GeS6] polyhedron and increase the dissolving amount of CdS in the glass.

关键词： chalcogenide glass Raman spectroscopy structure Ge-Sb-Cd-S system

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Crystal growth,spectral properties and Judd-Ofelt analysis of Pr:CaF_(2)-YF_(3)

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Chinese Physics B 2021年第10期30卷 624-629页

作者： Jie Tian Xiao Cao Wudi Wang Jian Liu Jianshu Dong Donghua Hu Qingguo Wang Yanyan Xue Xiaodong Xu Jun Xu School of Physics Science and Engineering Institute for Advanced StudyTongji UniversityShanghai 200092China jiangsu key laboratory of advanced laser materials and devices School of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China

The 0.6 at.%Pr^(3+)-doped CaF_(2)-YF_(3)crystal was successfully grown by the temperature gradient technique(TGT).X-ray diffraction analysis showed that the grown crystal still had cubic *** absorption spectrum,emission spectrum,Judd-Ofelt analysis and fluorescence decay curve at room temperature were *** fluorescence lifetime of Pr:CaF_(2)-YF_(3)crystal was 45.46µs,and theσem·τof ^(3)P0→^(3)H_(6) and ^(3)P0→^(3)F_(2) transitions were calculated to be 80.92×10^(−20) cm^(2)·µs and 388.7×10^(−20) cm^(2)·µs,*** FWHMs are 20.1 nm and 6.8 nm,which are higher than those of Pr:LiYF_(4),Pr:LiLuF_(4),Pr:LiGdF_(4) and Pr:BaY_(2)F_(8) *** results show that the Pr:CaF_(2)-YF_(3)crystal is expected to achieve 605 nm orange light and 642 nm red light laser operation.

关键词： CaF2-YF3 crystal growth spectral property Judd-Ofelt theory

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Thioacetamide Additive Homogenizing Zn Deposition Revealed by In Situ Digital Holography for advanced Zn Ion Batteries

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Nano-Micro Letters 2024年第6期16卷 261-275页

作者： Kaixin Ren Min Li Qinghong Wang Baohua Liu Chuang Sun Boyu Yuan Chao Lai Lifang Jiao Chao Wang School of Chemistry and materials Science Jiangsu Normal UniversityXuzhou 221116JiangsuPeople’s Republic of China jiangsu key laboratory of advanced laser materials and devices School ofPhysics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116JiangsuPeople’s Republic of China key laboratory of advanced Energy materials Chemistry(Ministry of Education) Nankai University300071 TianjinPeople’s Republic of China

Zinc ion batteries are considered as potential energy storage devices due to their advantages of low-cost,high-safety,and high theoretical ***,dendrite growth and chemical corrosion occurring on Zn anode limit their *** problems can be tackled through the optimization of the ***,the screening of electrolyte additives using normal electrochemical methods is time-consuming and ***,a fast and simple method based on the digital holography is *** can realize the in situ monitoring of electrode/electrolyte interface and provide direct information concerning ion concentration evolution of the diffusion *** is effective and time-saving in estimating the homogeneity of the deposition layer and predicting the tendency of dendrite growth,thus able to value the applicability of electrolyte *** feasibility of this method is further validated by the forecast and evaluation of thioacetamide *** on systematic characterization,it is proved that the introduction of thioacetamide can not only regulate the interficial ion flux to induce dendrite-free Zn deposition,but also construct adsorption molecule layers to inhibit side reactions of Zn *** easy to operate,capable of in situ observation,and able to endure harsh conditions,digital holography method will be a promising approach for the interfacial investigation of other battery systems.

关键词： Digital holographic microscopy In situ observation Electrode/electrolyte interface Zn dendrites Screening electrolyte additives

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Spectral properties of Pr:CNGG crystals grown by micro-pulling-down method

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Chinese Physics B 2019年第8期28卷 345-348页

作者： Yan-Yan Xue Na Li Dong-Hua Hu Qing-Song Song Xiao-Dong Xu Dong-Hai Wang Qing-Guo Wang Dong-Zhen Li Zhan-Shan Wang Jun Xu School of Physics Science and Engineering Institute for Advanced StudyTongji UniversityShanghai 200092China jiangsu key laboratory of advanced laser materials and devices School of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116China

Pr^3+-doped calcium niobium gallium garnet(Pr:CNGG)single crystals with different Pr^3+concentrations are successfully grown by the micro-pulling-down(μ-PD)*** crystal structure,room-temperature absorption spectra,and fluorescence spectra of Pr:CNGG crystals are measured and *** fluorescence results indicate their large dependence on the doping *** fluorescence lifetime of the 1D2 energy level is also *** results indicate that Pr:CNGG crystal could be a potential solid-state laser gain medium.

关键词： Pr:CNGG μ-PD method spectral properties

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Dual-phase competitive behavior in N-type Sn–Bi–Te thermoelectric films achieving high thermoelectric performance

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Progress in Natural Science:materials International 2024年第4期34卷 795-802页

作者： Yingqi Chen Guoxiang Wang Yixiao Gao laboratory of Infrared materials and devices The Research Institute of Advanced Technologies Ningbo University key laboratory of Photoelectric Detection materials and devices of Zhejiang Province

The dual-phase competitive behavior is introduced as an effective strategy to optimize the physical and chemical properties of N-type Bi2Te3thermoelectric（TE） materials. Controllable SnTe-embedded Bi2Te3nanocomposites can be synthesized with the addition of excessive Sn into Bi2Te3by tuning the crystallization behavior under proper thermal heating temperature. Notably, the precipitation temperature of Bi2Te3increases from 473 K for Sn20.9（Bi2Te3）79.1to 573 K for Sn34.4（Bi2Te3）65.6, expanding the controllable temperature span for the presence of SnTe phase. The second-phase nanoprecipitate SnTe can improve electrical conductivity by competing with the Bi2Te3phase, achieving an increase of four orders of magnitude at the critical temperature of ～500 K. Simultaneously, it increases the interfacial energy filtration effect between nanocrystalline grains, decoupling electrical parameters between conductivity and Seebeck coefficient. Consequently, the high power factor of ～147 μW/mK2at 650 K for optimized Sn26.6（Bi2Te3）73.4films can be obtained, which is more than twice that of the pure Bi2Te3material. Our work demonstrates a new physical mechanism to unravel the complicated structure-property relationship by dual-phase competitive behavior during phase transition. This study fills the gap in knowledge on the effects of the SnTe phase regarding the Bi2Te3system and provides guidance for the innovative design of high-performing inorganic thermoelectrics.

关键词： Bi2Te3 Thermoelectric properties Dual-phase Sn doped Magnetron sputtering

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