检索结果-南通市图书馆

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

引用

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

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Performance of iron-air battery with iron nanoparticle-encapsulated C-N composite electrode

引用

Frontiers in energy 2024年第1期18卷 42-53页

作者： Can FANG Xiangmei TANG Jiaoyan WANG Qingfeng YI School of Chemistry and Chemical Engineering Hunan University of Science and TechnologyXiangtan 411201China hunan provincial key laboratory of advanced materials for new energy storage and conversion Xiangtan 411201China

Highly efficient and stable iron electrodes are of great significant to the development of iron-air battery(IAB).In this paper,iron nanoparticle-encapsulated C–N composite(NanoFe@CN)was synthesized by pyrolysis using polyaniline as the C–N *** performance of the NanoFe@CN in different electrolytes(alkaline,neutral,and quasi-neutral)was investigated via cyclic voltammetry(CV).The IAB was assembled with NanoFe@CN as the anode and IrO_(2)+Pt/C as the *** effects of different discharging/charging current densities and electrolytes on the battery performance were also *** K_(2)SO_(4)electrolyte can effectively suppress the passivation of iron electrode,and the battery showed a good cycling stability during 180 charging/discharging *** to the pure nano-iron(NanoFe)battery,the NanoFe@CN battery has a more stable cycling stability either in KOH or NH_(4)Cl+KCl electrolyte.

关键词： energy storage and conversion metallic composites nanocomposites iron-air battery iron anode

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cu-substitution P2-Na_(0.66)Mn_(1-x)Cu_(x)O_(2) sodium-ion cathode with enhanced interlayer stability

引用

Journal of energy Chemistry 2022年第12期75卷 478-485,I0012页

作者： Huanqing Liu Xu Gao Jun Chen Jinqiang Gao Haoji Wang Yu Mei Huan Liu Wentao Deng Guoqiang Zou Hongshuai Hou Xiaobo Ji State key laboratory of Powder Metallurgy College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083HunanChina School of materials Science and Engineering Hunan Provincial Key Lab of Advanced Materials for New Energy Storage and ConversionHunan University of Science and TechnologyXiangtan 411201HunanChina

P2-type Mn-based layered oxides are viewed as promising cathode materials for sodium ion battery by virtue of their high theoretical *** that pure Na_(2/3)MnO_(2)suffers from poor cycling performances,Cu-substitution strategy is proposed to effectively alleviate this ***,the structural evolution mechanism of the Cu-containing samples still remains ***,we propose that CuSubstitution P2-type Na_(0.66)Mn_(1-x)Cu_(x)O_(2)with enlarged lattice parameters are conducive to improving the interlayer structure stability through mitigating TMO_(2)slabs *** by synchrotron XAS spectra and ex/in situ XRD,the expansion/contraction of MnO_6 octahedron is dramatically reduced with the increased Cu content,showing the facilitated Na ion ***,when the ratio of Cu to Mn reaches 1:4,the phase transition from P2 to P'2 type at the end of discharge can be suppressed,resulting in the improved interlayer skeleton *** Cu-containing samples with stable interlayer structure exhibit high capacity retention and outstanding rate performances(a capacity of 79.9 m Ah g^(-1)at 5C).This Cu-substitution strategy provides a promising approach to designing highly stable cathodes.

关键词： Sodium-ion battery Manganese-based cathode Cu-substitution In-plane distortion Jahn-Teller effect

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Revealing the structure design of alloyed based electrodes for alkali metal ion batteries with in situ TEM

引用

Journal of energy Chemistry 2021年第8期30卷 405-418,I0009页

作者： Huawen Huang Ran Bi Jie Cui Ming-Ming Hu Li Tian Xianfeng Yang Lei Zhang School of Chemistry&Chemical Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510640China Analytical and Testing Centre South China University of TechnologyGuangzhou 510640China School of materials Science and Engineering Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and ConversionHunan University of Science and TechnologyXiangtan 411201China

Alloyed based anode materials with high theoretical specific capacity and low reaction potential are considered to be highly potential high-energy density anode materials for alkali metal ion batteries(AMIBs).Thus,the design of alloyed based materials with high electrochemical performance has attracted great *** the numerous characterization methods for guiding electrode materials design,in situ transmission electron microscopy(TEM)gradually plays an irreplaceable role due to its high temporal and spatial resolution in directly observing the change of morphology,crystal structure and element ***,we reviewed the two current research hotspots and mainly focused on the structure design of alloyed based electrode material under the guidance of in situ ***,various nanostructure designs of alloyed based electrode materials with guidance of in situ TEM were employed to solve the key scientific issues of the violent volume change during alloying/dealloying processes for enhanced electrochemical *** through introducing buffer space in the electrode material to reduce volume change to improve structural stability,including porous structure(0 D),nanotube structure(1 D),simple hollow structure,yolk-shell structure and some hybrid hollow structures(3 D).Furthermore,the direct guidance of in situ TEM is expected for creating new opportunities to nextgeneration electrode material design for AMIBs.

关键词： In situ TEM Alloyed based anode Nanostructure design Alkali metal ion batteries

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Excellent thermoelectric performance in weak-coupling molecular junctions with electrode doping and electrochemical gating

引用

Science China(Physics,Mechanics & Astronomy) 2020年第7期63卷 78-88页

作者： Dan Wu Xuan-Hao Cao Pin-Zhen Jia Yu-Jia Zeng Ye-Xin Feng Li-Ming Tang Wu-Xing Zhou Ke-Qiu Chen Deparment of Applied Physics School of Physics and ElectronicsHunan University.Changsha 410082.China School of materials Science and Engineering Hunan University of Science and Technology&Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and ConversionXiangTan 411201China

Excellent thermoelectric performance in molecular junctions requires a high power factor, a low thermal conductance, and a maximum figure of merit(ZT) near the Fermi level. In the present work, we used density functional theory in combination with a nonequilibrium Green’s function to investigate the thermoelectric performance of carbon chain-graphene junctions with both strong-coupling and weak-coupling contact between the electrodes and the molecules. The results revealed that a room temperature ZT of 4 could be obtained for the weak-coupling molecular junction, approximately one order of magnitude higher than that reached by the strong-coupling junction. The reason for this is that strong interfacial scattering suppresses most of the phonon modes in weak-coupling systems, resulting in ultralow phonon thermal conductance. The influence of electrode width,electrode doping, and electrochemical gating on the thermoelectric performance of the weak-coupling system was also investigated, and the results revealed that an excellent thermoelectric performance can be obtained near the Fermi level.

关键词： thermoelectric molecular junctions weak-coupling electrochemical gating density functional theory

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Stress effect on lattice thermal conductivity of anode material NiNB_(2)O_(6)for lithium-ion batteries

引用

Chinese Physics B 2023年第5期32卷 43-48页

作者：陈奥童话吴成伟谢国锋谢忠祥向长青周五星 School of materials Science and Engineering&hunan provincial key laboratory of advanced materials for new energy storage and conversion Hunan University of Science and TechnologyXiangtan 411201China School of Science Hunan Institute of TechnologyHengyang 421002China College of Information Science and Engineering Jishou UniversityJishou 416000China

The thermal transport properties of NiNB_(2)O_(6)as anode material for lithium-ion battery and the effect of strain were studied by machine learning interatomic potential combined with Boltzmann transport *** results show that the lattice thermal conductivity of NiNB_(2)O_(6)along the three crystal directions[100],[010],and[001]are 0.947 W·m^(-1)·K^(-1),0.727 W·m^(-1)·K^(-1),and 0.465 W·m^(-1)·K^(-1),respectively,indicating the anisotropy of the lattice thermal conductivity of NiNB_(2)O_(6).This anisotropy of the lattice thermal conductivity stems from the significant difference of phonon group velocities in different crystal directions of NiNB_(2)O_(6).When the tensile strain is applied along the[001]crystal direction,the lattice thermal conductivity in all three directions ***,when the compressive strain is applied,the lattice thermal conductivity in the[100]and[010]crystal directions is increased,while the lattice thermal conductivity in the[001]crystal direction is abnormally reduced due to the significant inhibition of compressive strain on the group *** indicate that the anisotropy of thermal conductivity of NiNB_(2)O_(6)can be enhanced by the compressive strain,and reduced by the tensile strain.

关键词： nickel niobate lattice thermal conductivity uniaxial strain machine learning potential

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Anomalous strain effect on the thermal conductivity of low-buckled two-dimensional silicene

引用

National Science Review 2021年第9期8卷 23-31页

作者： Bin Ding Xiaoyan Li Wuxing Zhou Gang Zhang Huajian Gao Institute of High Performance Computing A*STAR Centre for advanced Mechanics and materials Applied Mechanics Laboratory Department of Engineering Mechanics Tsinghua University School of materials Science and Engineering & hunan provincial key laboratory of advanced materials for new energy storage and conversion Hunan University of Science and Technology School of Mechanical and Aerospace Engineering College of Engineering Nanyang Technological University

The thermal conductivity of two-dimensional materials, such as graphene, typically decreases when tensile strain is applied, which softens their phonon modes. Here, we report an anomalous strain effect on the thermal conductivity of monolayer silicene, a representative low-buckled two-dimensional (LB-2D)material. Reax FF-based molecular dynamics simulations are performed to show that biaxially stretched monolayer silicene exhibits a remarkable increase in thermal conductivity, by as much as 10 times the freestanding value, with increasing applied strain in the range of [0, 0.1], which is attributed to increased contributions from long-wavelength phonons. A further increase in strain in the range of [0.11, 0.18] results in a plateau of the thermal conductivity in an oscillatory manner, governed by a unique dynamic bonding behavior under extreme loading. This anomalous effect reveals new physical insights into the thermal properties of LB-2D materials and may provide some guidelines for designing heat management and energy conversion devices based on such materials.

关键词： low-buckled two-dimensional materials strain effect thermal conductivity bonding dynamics

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Microwave-assisted acid-induced formation of linker vacancies within Zr-based metal organic frameworks with enhanced heterogeneous catalysis

引用

Chinese Chemical Letters 2021年第2期32卷 787-790页

作者： Yu Liang Chenhui Li Lanjun Chen Jia Huo Mohammed Loubidi Yangyang Zhou Yanbo Liu State key laboratory of Chem/Bio-sensing and Chemometrics College of Chemistry and Chemical Engineering.Hunan UniversityChangsha 410082China hunan provincial key laboratory of advanced materials for new energy storage and conversion.hunan University of Science and Technology Xiangtan 411201China

Herein,we report a microwave-assisted acid-induced post-treatment method for the formation of linker vacancies within Zr-based metal organic frameworks(Zr-MOFs).The number of linker vacancies can be easily regulated with this method by changing the concentration of the HCl solution and the duration of microwave *** optimized defective UiO-66 showed higher linker defects with a higher specific surface area and thermal *** results of the catalytic cyclization of citronella showed that the Zr-MOFs with more defects exhibited enhanced catalytic *** work may provide a new method for the creation of defective MOFs with high activity and stability.

关键词： Metal-organic frameworks Microwave Acid etching Linker vacancy Stability Heterogeneous catalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Patterned phosphor-in-glass films with efficient thermal management for high-power laser projection displays

引用

Journal of advanced Ceramics 2023年第11期12卷 2075-2086页

作者： Zezhong Yang Song Zheng Guoyu Xi Tao Pang Shaoxiong Wang Qingying Ye Bin Zhuang Daqin Chen College of Physics and energy Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy MaterialsFujian Normal UniversityFuzhou 350117China Huzhou key laboratory of materials for energy conversion and storage College of ScienceHuzhou UniversityHuzhou 313000China Fujian provincial Collaborative Innovation Center for advanced High-Field Superconducting materials and Engineering Fujian Normal UniversityFuzhou 350117China Fujian provincial Engineering Technology Research Center of Solar energy conversion and energy storage Fujian Normal UniversityFuzhou 350117China

Recently,high-performance color converters excitable by blue laser diode(LD)have sprung up for projection ***,the thermal accumulation effect of the color converters is a non-negligible problem under high-power LD ***,we developed novel opto-functional composites(patterned CaAlSiN3:Eu^(2+)phosphor-in-glass film–Y_(3)Al_(5)O_(12):Ce^(3+)phosphor-in-glass film@Al_(2)O_(3)plate with aluminum"heat sink")via a thermal management methodology of combining"phosphor wheel"and"heat sink"for a lighting source of highpower laser projection *** new composite design makes it effective to transport generated thermal phonons away to reduce the thermal ionization process,and to yield stable and high-quality white light with brightness of 4510 lm@43 W,luminous efficacy of 105 lm/W,correlated color temperature of 3541 K,and color rendering index of ***,the phosphor-in-glass film-converted laser projection system was also successfully designed,showing a more vivid color effect compared to a traditional LED-based *** work emphasizes the importance of the thermal management upon high-power laser irradiation,and hopefully facilitates the development of a new LD-driven lighting source for high-power laser projection displays.

关键词： phosphor-in-glass(PiG)film laser-driven lighting luminescent materials heat dissipation glass ceramics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ultra-low thermal conductivity of roughened silicon nanowires:Role of phonon-surface bond order imperfection scattering

引用

Chinese Physics B 2020年第8期29卷 102-107页

作者： Heng-Yu Yang Ya-Li Chen Wu-Xing Zhou Guo-Feng Xie Ning Xu School of materials Science and Engineering Hunan University of Science and TechnologyXiangtan 411201China hunan provincial key laboratory of advanced materials for new energy storage and conversion Xiangtan 411201China School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China Deparment of Physics Yancheng Institute of TechnologyYancheng 224051China

The ultra-low thermal conductivity of roughened silicon nanowires(SiNWs)can not be explained by the classical phonon-surface scattering *** there have been several efforts at developing theories of phonon-surface scattering to interpret it,but the underlying reason is still *** consider that the bond order loss and correlative bond hardening on the surface of roughened SiNWs will deeply influence the thermal transport because of their ultra-high surface-to-volume *** combining this mechanism with the phonon Boltzmann transport equation,we explicate that the suppression of high-frequency phonons results in the obvious reduction of thermal conductivity of roughened ***,we verify that the roughness amplitude has more remarkable influence on thermal conductivity of SiNWs than the roughness correlation length,and the surface-to-volume ratio is a nearly universal gauge for thermal conductivity of roughened SiNWs.

关键词： thermal conductivity silicon nanowires bond order imperfections phonon-surface scattering

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：