检索结果-南通市图书馆

Monitoring and engineering interface coupling between monolayer WS_(2)and substrate through controllably introducing interfacial strain

引用

Science China Materials 2024年第9期67卷 3012-3020页

作者： Xiaofei Yue Jiajun Chen Jinkun Han Yabing Shan Shuwen Shen Wenxuan Wu Bingjie Liu Lijia Li Yu Chen Rongjun Zhang Laigui Hu Ran Liu Zhijun Qiu Chunxiao Cong School of Information Science and Technology Fudan UniversityShanghai200433China Commonwealth Scientific and Industrial Research Organization(CSIRO) ClaytonVictoria3168Australia Yiwu Research Institute of Fudan University Yiwu322000China

The interface properties in two-dimensional(2D)layered materials and their van der Waals(vdW)homo-/heterostructures are of importance in both uncovering novel physical phenomena and optimizing device *** considerable research interest and enthusiasm direct toward the interlayer coupling in 2D homo-and heterostructures,there is limited research on the coupling at the 2D layered material-substrate *** limitation is due to the challenges in achieving direct ***,the coupling mechanisms at the 2D layered material-substrate interface is ambiguous,which needs greater *** this study,we have systematically investigated the interface coupling between monolayer WS_(2)and its supported substrates using high-temperature and high-vacuum in-situ Raman spectroscopy through monitoring the low-frequency Raman mode of monolayer WS_(2).Our findings reveal that both interfacial spacing and strain can significantly affect the coupling strength between the monolayer WS_(2)and the supported *** notably,we found that the strategic introduction of appropriate interfacial strain can effectively enhance the interface ***,we have succeeded in achieving effective regulation of the sample-substrate coupling via a convenient way of controlling the cooling process during *** findings contribute to a deeper understanding of the coupling correlation between 2D layered materials and substrates,which is of great significance for the design and optimization of high-performance devices based on 2D layered semiconductors.

关键词： two-dimensional layered material substrate interface coupling low-frequency Raman mode interfacial spacing interfacial strain

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

High-performance 1D CsPbBr_(3)/CdS photodetectors

引用

Rare Metals 2024年第11期43卷 5932-5942页

作者： Zhi-Lin Xiang Qiu-Hong Tan Ting Zhu Pei-Zhi Yang Yan-Ping Liu Ying-Kai Liu Qian-Jin Wang College of Physics and Electronic Information Yunnan Normal UniversityKunming 650500China Yunnan Provincial Key Laboratory for Photoelectric Information Technology Yunnan Normal UniversityKunming 650500China Key Laboratory of Advanced Technique&Preparation for Renewable Energy Materials Ministry of EducationYunnan Normal UniversityKunming 650500China Hunan Key Laboratory for Super-Microstructure and Ultrafast Process School of Physics and ElectronicsCentral South UniversityChangsha 410083China

The emergence of all-inorganic perovskite CsPbBr_(3)has ignited significant interest in optoelectronic devices,However,CsPbBr_(3)thin film-based photodetectors face performance limitations due to grain boundaries and defect *** address these challenges,we introduce a novel typeⅡheterojunction photodetector utilizing CsPbBr_(3)micro wires(MWs)and CdS nanoribbons(NBs).Remarkably,this photodetector exhibits exceptional characteristics:a high on/off current ratio(1.07×10^(5)),a responsivity of up to 1.35×10^(4)A·W^(-1),specific detectivity of 5.94×10^(15)Jones,external quantum efficiency of2.83×10^(4)%and rapid response/recovery time(400μs/3 ms).These superior performances stem from the exceptional crystalline quality of CsPbBr_(3)MWs and CdS NBs,coupled with the establishment of a typeⅡband alignment at their *** configuration enables efficient carrier separation while suppressing ***,1D CsPbBr_(3)MW/CdS NB heterojunction photodetectors demonstrate reliable imaging capabilities under visible light *** findings present an innovative solution for high-performance perovskite-based photodetectors,holding promise for future commercial applications.

关键词： All-inorganic perovskite Photodetectors interface coupling Electric charge transfer

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

Modified two-grid method for solving coupled Navier-Stokes/Darcy model based on Newton iteration

引用

Applied Mathematics(A Journal of Chinese Universities) 2015年第2期30卷 127-140页

作者： SHEN Yu-jing HAN Dan-fu SHAO Xin-ping Department of Mathematics Zhejiang University Department of Mathematics Hangzhou Normal University School of Science Hangzhou Dianzi University

A new decoupled two-gird algorithm with the Newton iteration is proposed for solving the coupled Navier-Stokes/Darcy model which describes a fluid flow filtrating through porous media. Moreover the error estimate is given, which shows that the same order of accuracy can be achieved as solving the system directly in the fine mesh when h = H2. Both theoretical analysis and numerical experiments illustrate the efficiency of the algorithm for solving the coupled problem.

关键词： Navier-Stokes equation Darcy's law interface coupling two-grid algorithm Newton iteration

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

Improved stability of perovskite virtual crystalline films via large grains and fluorine-containing materials in solar cells

Improved stability of perovskite virtual crystalline films v...

引用

第三届新型太阳能电池学术研讨会

作者： Gaoqiang Niu Meihui Hou Shanshan Zhang Yang Wei Cheng Huang Wei Huang Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM)Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (Nanjing Tech)

Perovskite solar cells are promising photovoltaic devices because there has been a rapid progress in this filed and the power conversion efficiencies(PCE) have been improved from % to 2%.Organic-inorganic perovskite materials are unique semiconductors with excellent integrated optical performance and can be prepared by low-temperature solution-processing ***,the chemical or physical instability of the corresponding materials has impeded the development and application of these ***,organic-inorganic perovskite virtual crystalline films possessing high-quality large grains were prepared by a facile and effective one-step precursor solution deposition ***,fluorine-containing amine salts and polyimides with chemical stability and hydrophobicity were developed to improve stability of crystalline films via surface and interface coupling in solar cells.

关键词： perovskite stability grain boundary engineering interface coupling fluorinated materials

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

MULTISCALE SIMULATIONS OF HEAT TRANSFER AND FLUID FLOW PROBLEMS

MULTISCALE SIMULATIONS OF HEAT TRANSFER AND FLUID FLOW PROBL...

引用

第二届热问题计算方法国际会议

作者： Y.L.He W.Q.Tao MOE Key Laboratory of Thermo-Fluid Science and Engineering Xi’an Jiaotong University Xi’an 710049 PR China

＜正＞The multiscale problems in the thermal and fluid science are classified into two categories: multiscale process and multiscale *** are provided for multiscale process and multiscale *** focus of this presentation is at the multiscale *** numerical approaches for multiscale processes have been *** numerical examples of multiscale process are presented.

关键词： Multiscale Simulation Reconstruction Operator interface coupling

来源： cnki会议评论

在线全文

cnki会议

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

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

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：