检索结果-南通市图书馆

Flexible aqueous Ca-ion full battery with super-flat discharge voltage plateau

Nano Research 2022年第1期15卷 701-708页

作者： Panpan Wang Hua Wang Zhe Chen Junwei Wu jingting luo Yan Huang School of Materials Science and Engineering Shenzhen UniversityShenzhen 518055China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyShenzhen 518055China Flexible Printed Electronic Technology Center Harbin Institute of TechnologyShenzhen 518055China School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen 518055China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518055China

Recently,multivalent metal-ion batteries have attracted considerable interests on the merits of their natural abundance and multielectron redox ***,the development of Ca-ion battery is still in their preliminary stage because of the lack of suitable electrode *** Ca-storage performance of the existing materials is still unsatisfactory with low capacity,poor cyclic stability,as well as sloping discharge profiles,which cannot provide stable energy *** this work,transition metal oxide Sn-doped In2O3(ITO)has been explored as the aqueous Ca-ion battery anode,which could deliver a high discharge capacity of 71.2 mAh·g^(-1) with an ultra-flat discharge voltage *** Ca storage mechanism was revealed to be reversible conversion reaction based on ex-situ X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),and transmission electron microscopy(TEM)characterizations.A flexible aqueous Ca-ion battery was subsequently assembled with zinc hexacyanoferrate(ZnHCF)cathode and ITO anode sandwiched by hydrogel electrolyte,which could deliver a high specific capacity of 75.3 mAh·g^(-1) at 0.4 A·g^(-1) with a flat output voltage plateau at around 0.8 *** bendable and flexible Ca-ion battery with decent voltage output will pave the way for the energy storage devices towards practical applications in flexible and wearable electronics.

关键词： multivalent metal ion battery aqueous Ca-ion battery voltage plateau ln2O3(ITO) flexible and wearable

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

Giant piezoresponse and promising application of environmental friendly small-ion-doped ZnO

引用

Science China(Technological Sciences) 2012年第2期55卷 421-436页

作者： PAN Feng luo jingting ANG YuChao WANG XuBo ZENG Fei Key Laboratory of Advanced Materials Department of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

In recent years, with the growing concerns on environmental protection and human health, new materials, such as lead-free piezoelectric materials, have received increasing attention. So far, three types of lead-free piezoelectric systems have been widely researched, i.e., perovskites, bismuth layer-structured ferroelectrics, and tungsten-bronze type ferroelectrics. This article presents a new type of environmental friendly piezoelectric material with simple structure, the transition-metal（TM）-doped ZnO. Through substituting Zn2＋ site with small size ion, we obtained a series of TM-doped ZnO with giant piezoresponse, such as Zno.975Vo.o250 of 170 pC/N, Zn0.94Cr0.06O of 120 pC/N, Zn0.913Mn0.0870 of 86 pC/N and Zn0.988Fe0.0120 of 127 pC/N. The tremendous piezoresponses are ascribed to the introduction of switchable spontaneous polarization and high permittivity in TM-doped ZnO, The microscopic origin of giant piezoresponse is also discussed. Substitution of TM ion with small ionic size for Zn2＋ results in the easier rotation of noncollinear TM-O1 bonds along the c axis under the applied field, which produces large piezoelectric displacement and corresponding piezoresponse enhancement. Furthermore, it proposes a general rule to guide the design of new wurtzite semiconductors with enhanced piezoresponses. That is, TM-dopant with ionic size smaller than Zn2＋ substitutes for Zn2＋ site will increase the piezoresponse of ZnO significantly. Finally, we discuss the improved per- formances of some TM-doped ZnO based piezoelectric devices.

关键词： ZnO lead-free piezoelectric doping modification piezoresponse enhancement

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

Controlling Ion Conductance and Channels to Achieve Synapticlike Frequency Selectivity

引用

Nano-Micro Letters 2015年第2期7卷 121-126页

作者： Siheng Lu Fei Zeng Wenshuai Dong Ao Liu Xiaojun Li jingting luo Laboratory of Advanced Materials (MOE) School of Materials Science and Engineering Tsinghua University Institute of Thin Film Physics and Applications Shenzhen Key Laboratory of Sensor Technology Shenzhen University

Enhancing ion conductance and controlling transport pathway in organic electrolyte could be used to modulate ionic kinetics to handle signals. In a Pt/Poly(3-hexylthiophene-2,5-diyl)/Polyethylene?Li CF3SO3/Pt hetero-junction, the electrolyte layer handled at high temperature showed nano-fiber microstructures accompanied with greatly improved salt solubility. Ions with high mobility were confined in the nano-fibrous channels leading to the semiconducting polymer layer,which is favorable for modulating dynamic doping at the semiconducting polymer/electrolyte interface by pulse *** a device realized synaptic-like frequency selectivity, i.e., depression at low frequency stimulation but potentiation at high-frequency stimulation.

关键词： Ions migration Nano-channels Frequency selectivity Semiconducting polymer Organic electrolyte Dynamic doping

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

Flexible multifunctional platform based on piezoelectric acoustics for human–machine interaction and environmental perception

引用

Microsystems & Nanoengineering 2022年第5期8卷 91-103页

作者： Qian Zhang Yong Wang Dongsheng Li Jin Xie Ran Tao jingting luo Xuewu Dai Hamdi Torun Qiang Wu Wai Pang Ng Richard Binns YongQing Fu The State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University310027 HangzhouChina Faculty of Engineering and Environment University of NorthumbriaNewcastle upon Tyne NE18STUK Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake University310024 HangzhouChina Key Laboratory of Optoelectronic Devices and Systems of Education Ministry and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen University518060 ShenzhenChina

Flexible human–machine interfaces show broad prospects for next-generation flexible or wearable electronics compared with their currently available bulky and rigid ***,compared to their rigid counterparts,most reported flexible devices(e.g.,flexible loudspeakers and microphones)show inferior performance,mainly due to the nature of their ***,it is of great significance to improve their performance by developing and optimizing new materials,structures and design *** this paper,a flexible acoustic platform based on a zinc oxide(ZnO)thin film on an aluminum foil substrate is developed and optimized;this platform can be applied as a loudspeaker,a microphone,or an ambient sensor depending on the selection of its excitation *** used as a speaker,the proposed structure shows a high sound pressure level(SPL)of~90 dB(with a standard deviation of~3.6 dB),a low total harmonic distortion of~1.41%,and a uniform directivity(with a standard deviation of~4 dB).Its normalized SPL is higher than those of similar devices reported in the recent *** used as a microphone,the proposed device shows a precision of 98%for speech recognition,and the measured audio signals show a strong similarity to the original audio signals,demonstrating its equivalent performance compared to a rigid commercial *** a flexible sensor,this device shows a high temperature coefficient of frequency of−289 ppm/K and good performance for respiratory monitoring.

关键词： acoustics piezoelectric speakers

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

The influence of sequence of precursor films on CZTSe thin films prepared by ion-beam sputtering deposition

引用

Journal of Semiconductors 2017年第2期38卷 15-19页

作者： Jun Zhao Guangxing Liang Yang Zeng Ping Fan Juguang Hu jingting luo Dongping Zhang Institute of Thin Film Physics and Applications College of Physics and Energy Shenzhen University Shenzhen 518060 China Institute of Chemical Science UMR CNRS 6226 University of Rennes 1 35042 Rennes France

The CuZnSn（CZT） precursor thin films are grown by ion-beam sputtering Cu, Zn, Sn targets with different orders and then sputtering Se target to fabricate Cu_2ZnSnSe_4（CZTSe） absorber thin films on molybdenum substrates. They are annealed in the same vacuum chamber at 400 ℃. The characterization methods of CZTSe thin films include X-ray diffraction（XRD）, energy dispersive spectroscopy（EDS）, scanning electron microscopy（SEM）, and X-ray photoelectron spectra（XPS） in order to study the crystallographic properties, composition, surface morphology, electrical properties and so on. The results display that the CZTSe thin films got the strongest diffraction peak intensity and were with good crystalline quality and its morphology appeared smooth and compact with a sequence of Cu/Zn/Sn/Se, which reveals that the expected states for CZTSe are Cu^（1＋）, Zn^（2＋）, Sn^（4＋）, Se^（2）.With the good crystalline quality and close to ideal stoichiometric ratio the resistivity of the CZTSe film with the sequence of Cu/Zn/Sn/Se is lower, whose optical band gap is about 1.50 eV.

关键词： CZTSe thin films ion-beam sputtering chalcogenide

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

Integrated sensor based on acoustics-electricity-mechanics coupling effect for wireless passive gas detection

引用

Nano Research 2023年第2期16卷 3130-3141页

作者： Licheng Zhou Bohui Zhai Zhixiang Hu Mingqi Zhang Long Li Xiangxin Wang Guangzu Zhang jingting luo Honglang Li Bingbing Chen Shenglin Jiang Hua-Yao Li Huan Liu School of Optical and Electronic Information Wuhan National Laboratory for OptoelectronicsOptics Valley LaboratoryHuazhong University of Science and TechnologyWuhan 430074China Shenzhen Huazhong University of Science and Technology Research Institute Shenzhen Virtual University ParkShenzhen 518000China Key Laboratory of Optoelectronic Devices and Systems College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China CAS Center for Excellence in Nanoscience National Center for Nanoscience and TechnologyBeijing 100190China School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China

Integrated sensor combines multiple sensor functions into a single unit,which has the advantages of miniaturization and better application ***,limited by the sensing platforms of the sensor and the selectivity of the sensitive film,there are still challenges to realize multi-component gas detection in one ***,a principle integration method is proposed to achieve the multi-component gas detection based on the acoustics-electricity-mechanics coupling *** electrical and mechanical properties of the Bi_(2)S_(3)nanobelts materials in different atmospheres indicate the possibility of realizing the principle *** the same time,the surface acoustic wave(SAW)sensor as a multivariable physical transducer can sense both electrical and mechanical *** exposure to 10 ppm NO_(2),NH_(3),and their mixtures,the integrated SAW gas sensor shows a 4.5 kHz positive frequency shift(acoustoelectric effect),an 11 kHz negative frequency shift(mechanics effects),and a reduced 4 kHz negative frequency shift(acoustics-electricity-mechanics coupling effect),***,we realize wireless passive detection of NO_(2)and NH_(3)based on the SAW *** work provides valuable insights that can serve as a guide to the design and fabrication of single sensors offering multi-component gas detection via different gas sensing mechanisms.

关键词： integrated gas sensor bismuth sulfide surface acoustic wave coupling effect wireless passive

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

赛博文本视域下互动影像的交互机制研究

引用

北京电影学院学报 2020年第6期 4-11页

作者：罗婧婷台湾世新大学新闻传播学院

本文以赛博文本作为理解数字媒体时代文本现象的理论视角。该理论聚焦于文本的拓扑结构,其包含了互动性和遍历性特征。作为探析互动影像交互机制的理论,互动影像既在该理论的框架内,又扩展了其意涵。它让遍历性与线性共存的同时,打破了... 详细信息

本文以赛博文本作为理解数字媒体时代文本现象的理论视角。该理论聚焦于文本的拓扑结构,其包含了互动性和遍历性特征。作为探析互动影像交互机制的理论,互动影像既在该理论的框架内,又扩展了其意涵。它让遍历性与线性共存的同时,打破了赛博文本对两者的二元划分。互动影像采用表层交互的迷宫式折返结构,融合潜层叙事的线性逻辑,形成了互动影像独有的交互机制。该机制本身作为"媒材",让影像创作从话语叙事往"体验"转向。

关键词：赛博文本互动影像交互机制遍历

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

从线性叙事到线质叙事:当代电影叙事的症候研究

引用

北京电影学院学报 2024年第9期 65-75页

作者：罗婧婷西南石油大学艺术学院

当代电影叙事的基本范式渐渐从一种奇幻的“心灵之旅”向烧脑的“心灵游戏”转移。这类叙事通常被称为“非线性叙事”,其被置于“线性―非线性”的二元关系中,然而“非线性叙事”概念不仅大而无当,其本身也隐含着一种悖论。如果援引蒂... 详细信息

当代电影叙事的基本范式渐渐从一种奇幻的“心灵之旅”向烧脑的“心灵游戏”转移。这类叙事通常被称为“非线性叙事”,其被置于“线性―非线性”的二元关系中,然而“非线性叙事”概念不仅大而无当,其本身也隐含着一种悖论。如果援引蒂姆·英戈尔德的线条理论,转而将电影叙事置于“线―点”的二元关系中,将传统线性叙事改写为“点质叙事”,而所谓的非线性叙事实则属于“线质叙事”,进而探究其复杂的时间构型、不可靠的叙事者、游戏化趋势等“症候”,提出一种线质叙事理论,便能更好地把握当代电影流动的、鲜活的、多元的叙事实践。

关键词：线性叙事线质叙事时间构型不可靠叙事者游戏化叙事

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

开启物光新征程——纪念深圳大学建校40周年

引用

科学通报 2023年第34期68卷 4615-4617页

作者：彭登峰罗景庭深圳大学物理与光电工程学院深圳518060

深圳大学物理与光电工程学院是2019年1月15日根据学校学科调整,由原光电工程学院、物理与能源学院及电子科学与技术学院(光电相关部分)合并组建而成.其办学历史可以追溯到1985年建立的应用物理系.2006年,由原理学院应用物理系、核技术... 详细信息

深圳大学物理与光电工程学院是2019年1月15日根据学校学科调整,由原光电工程学院、物理与能源学院及电子科学与技术学院(光电相关部分)合并组建而成.其办学历史可以追溯到1985年建立的应用物理系.2006年,由原理学院应用物理系、核技术应用研究所和原师范学院物理教育系组建了物理科学学院,2015年12月物理科学学院更名为物理与能源学院.2006年由原工程技术学院电子科技系、光电信息系组建了电子科学与技术学院.2007年,在光电子学研究所基础上建立光电工程学院,在院(所)创始人牛憨笨院士的带领下,建立了围绕光电和测控领域的完整学科群.

关键词：电子科学与技术学科调整深圳大学物理科学学科群光电子学工程技术学院光电信息

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

后数字时代的“数字—影像”与“电影吸引力”研究

引用

北京电影学院学报 2022年第4期 56-64页

作者：范虹罗婧婷长江师范学院传媒学院台湾艺术大学传播学院中国台湾世新大学新闻传播学院

2022新年伊始,《黑客帝国:矩阵重启》在中国大陆上映,影片使用计算机的堆栈原理,将现实世界嫁接到故事世界中,又拟人化地展现出堆栈的递归演算过程,让观众既看见“英雄之旅”中的奇观,又看到“电脑之旅”中的数字技术。在后数字时代,这... 详细信息

2022新年伊始,《黑客帝国:矩阵重启》在中国大陆上映,影片使用计算机的堆栈原理,将现实世界嫁接到故事世界中,又拟人化地展现出堆栈的递归演算过程,让观众既看见“英雄之旅”中的奇观,又看到“电脑之旅”中的数字技术。在后数字时代,这类展现数字技术反身性的电影,可被界定为一种具有元数字意味的影像类型——数字—影像。而这种在“看见”影像与“看穿”影像之间不断摇摆的幻象,也构成了后数字时代的电影吸引力。

关键词：黑客帝国堆栈结构后数字数字—影像电影吸引力

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：