检索结果-南通市图书馆

Distance-dependent magnetization modulation induced by inter-superatomic interactions in Cr-doped Au_(6)Te_(12)Se_(8) dimers

引用

Chinese Physics B 2024年第12期33卷 408-415页

作者： Yurou Guan Nanshu Liu Cong Wang Fei Pang Zhihai Cheng Wei Ji Beijing Key Laboratory of Optoelectronic Functional materials&Micro-Nano Devices School of PhysicsRenmin University of ChinaBeijing 100872China Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education) Renmin University of ChinaBeijing 100872China

Individual superatoms are assembled into more complicated nanostructures to diversify their physical *** of assembled superatoms remains,however,ambiguous,particularly in terms of its distance ***,we report density functional theory calculations on the distance-dependent magnetism of transition metal embedded Au_(6)Te_(8)Se_(12)(ATS)superatomic *** the four considered transition metals,which include V,Cr,Mn and Fe,the Cr-embedded Au_(6)Te_(12)Se_(8)(Cr@ATS)is identified as the most suitable for exploring the inter-superatomic distancedependent *** thus focused on Cr@ATS superatomic dimers and found an inter-superatomic magnetizationdistance oscillation where three transitions occur for magnetic ordering and/or anisotropy at different inter-superatomic *** the inter-superatomic distance elongates,a ferromagnetism(FM)-to-antiferromagnetic(AFM)transition and a sequential AFM-to-FM transition occur,ascribed to competitions among Pauli repulsion and kinetic-energy-gains in formed inter-superatomic Cr-Au-Au-Cr covalent bonds and Te-Te quasi-covalent *** the third transition,in-plane electronic hybridization contributes to the stabilization of the AFM *** work unveils two mechanisms for tuning magnetism through non-covalent interactions and provides a strategy for manipulating magnetism in superatomic assemblies.

关键词： low dimensional materials magnetic interactions

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

The roles of black phosphorus in performance enhancement of halide perovskite solar cells

引用

Journal of Energy Chemistry 2022年第4期31卷 672-683页

作者： Damir Aidarkhanov Charles Surya Annie Ng Department of Electrical and Computer Engineering School of Engineering and Digital SciencesNazarbayev UniversityKabanbay Batyr Ave.53Nur-Sultan 010000Kazakhstan Innovation and Technology Commission Central Government Offices2 Tin Mei AvenueHong Kong 999077China

Hybrid organic-inorganic perovskite solar cells(PSCs) are considered to be the most promising thirdgeneration photovoltaic(PV) technology with the most rapid rate of increase in the power conversion efficiency(PCE). To date, their PCE values are comparable to the established photovoltaic technologies such as crystalline silicon. Intensive research activities associated with PSCs have been being performed,since 2009, aiming to further boost the device performance in terms of efficiency and stability via different strategies in order to accelerate the progress of commercialization. The emerging 2 D black phosphorus(BP) is a novel class of semiconducting material owing to its unique characteristics, allowing them to become attractive materials for applications in a variety of optical and electronic devices, which have been comprehensively reviewed in the literature. However, comprehensive reviews focusing on the application of BP in PSCs are scarce in the community. This review discusses the research works with the incorporation of BP as a functional material in PSCs. The methodology as well as the effects of employing BP in different regions of PSCs are summarized. Further challenges and potential research directions are also highlighted.

关键词： Perovskite solar cells Black phosphorus Power conversion efficiency Stability low dimensional materials

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

Emerging single-photon detection technique for high-performance photodetector

引用

Frontiers of physics 2024年第6期19卷 199-224页

作者： Jinxiu Liu Zhenghan Peng Chao Tan Lei Yang Ruodan Xu Zegao Wang College of materials Science and Engineering Sichuan UniversityChengdu 610065China Department of materials Science and Engineering Stanford UniversityCalifornia 94305USA Department of Biomedical Engineering and Technology Institute of Basic Theory for Chinese MedicineChina Academy of Chinese Medical SciencesBeijing 100700China

Single-photon detections(SPDs)represent a highly sensitive light detection technique capable of detecting individual photons at extremely low light intensity *** technology mainly relies on the mainstream SPDs,such as photomultiplier tubes(PMTs),avalanche photodiodes(SAPD),superconducting nanowire single-photon detectors(SNSPDs),supercon-ducting transition-edge sensor(TES),and hybrid lead halide ***,the complexity and high manufacturing cost,coupled with the requirement of special conditions like a low-temperature environment,pose significant challenges to the wide adoption of *** address the challenges faced by SPDs,significant efforts have been devoted to enhan-cing their *** this review,we first summarize the principles and technical challenges of several ***,superconductors,semiconductors,3D bulk materials,2D film materials,1D nanowires,and OD quantum dots have all been discussed for single-photon *** such as special optical structure,waveguide integration,and strain engineering have been employed to elevate the performance of single-photon *** techniques enhance light absorption and modulate the band structure of the material,thereby improving the single-photon *** providing an overview of the current situation and future challenges of SPDs,this review aims to propose potential solutions for photon detection technology.

关键词： single-photon detection superconductor semiconductor low dimensional materials optical structure waveguide integration strain engineering

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

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

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

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：