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Recent progress in 2D van der Waals heterostructures: fabrication, properties, and applications

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Science China(Information Sciences) 2022年第11期65卷 66-93页

作者： Zenghui WANG Bo XU shenghai pei Jiankai ZHU Ting WEN Chenyin JIAO Jing LI Maodi ZHANG Juan XIA Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China

Two-dimensional van der Waals heterostructures(2D vd W HSs) can be constructed by stacking different 2D materials together in nearly endless ways, and have significantly enriched the 2D materials *** have attracted intense research attention, due to their exotic physical properties and intriguing device performance, often beyond those found in their constituent 2D materials. Here we review research progress in this emerging 2D system, including fabrication methods, material properties, and device applications, and offer our perspectives on emerging research opportunities in this highly active area.

关键词： 2D materials van der Waals heterostructure interlayer coupling stacking layered nanostructures

Broad-range,high-linearity,and fast-response pressure sensing enabled by nanomechanical resonators based on 2D non-layered material:β-In_(2)S_(3)

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InfoMat 2024年第8期6卷 119-127页

作者： Junzhi Zhu Song Wu Luming Wang Jiaqi Wu Jiankai Zhu Luwei Zou Fei Xiao Ziluo Su Chenyin Jiao shenghai pei Zejuan Zhang Jiaze Qin Bo Xu Yu Zhou Juan Xia Zenghui Wang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengduthe People's Republic of China State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaithe People's Republic of China School of Physics Hunan Key Laboratory of Nanophotonics and DevicesCentral South UniversityChangshathe People's Republic of China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengduthe People's Republic of China

Two-dimensional(2D)non-layered materials,along with their unique surface properties,offer intriguing prospects for sensing *** mechanical degrees of freedom is expected to enrich the sensing performances of 2D non-layered devices,such as high frequency,high tunability,and large dynamic range,which could lead to new types of high performance ***,we demonstrate 2D non-layered nanomechanical resonant sensors based onβ-In_(2)S_(3),where the devices exhibit robust nanomechanical vibrations up to the very high frequency(VHF)*** show that such device can operate as pressure sensor with broad range(from 103 Torr to atmospheric pressure),high linearity(with a nonlinearity factor as low as 0.0071),and fast response(with an intrinsic response time less than 1μs).We further unveil the frequency scaling law in theseβ-In_(2)S_(3) nanomechanical sensors and successfully extract both the Young's modulus and pretension for the *** work paves the way towards future wafer-scale design and integrated sensors based on 2D non-layered materials.

关键词： 2D non-layered materials frequency scaling nanomechanical resonators pressure sensing

二维材料及其范德瓦尔斯异质结的高压响应研究进展

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高压物理学报 2021年第3期35卷 1-15页

作者：裴胜海邓晴阳王曾晖夏娟电子科技大学基础与前沿研究院四川成都610054

高压技术是一种高效、连续、可逆的调控材料结构、电学、光学等物理特性的手段,因此利用压强工程在材料中实现超导态、制备超硬材料等成为高压领域的研究热点。不同于传统的三维体相材料,二维材料及其异质结中独特的层间耦合作用使其具... 详细信息

高压技术是一种高效、连续、可逆的调控材料结构、电学、光学等物理特性的手段,因此利用压强工程在材料中实现超导态、制备超硬材料等成为高压领域的研究热点。不同于传统的三维体相材料,二维材料及其异质结中独特的层间耦合作用使其具有许多不同于传统材料的物理特性,且这些物理特性极易受到外场影响和调控,使得高压物理成功地拓展到低维材料领域。本文以石墨烯、黑磷、六方氮化硼和过渡金属二硫族化合物等几种典型的二维材料及其异质结为例,概述了二维材料及异质结在高压调控下的结构、电学、声子动力学、光学等方面的响应,并简要讨论这些高压调控下的二维材料在未来电子、光电器件等领域应用的潜力。

关键词：二维材料范德瓦尔斯异质结高压

Strategies for mitigating detrimental effects in cyber-physical multiplex networks

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Science China(Information Sciences) 2024年第6期67卷 453-454页

作者： Yudong GONG shenghai YANG Sanyang LIU pei WANG Yiguang BAI School of Mathematics and Statistics Xidian University

Detrimental effects,such as widespread epidemics or rumors,can inflict significant damage on society in a remarkably short time[1].Various studies have focused on mitigating these effects independently within single-l... 详细信息

关键词： Cost effectiveness

Coprecipitation Synthesis of Fluorides Nanoparticles with Multiform Structures and Mechanisms Research

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Journal of Wuhan University of Technology(Materials Science) 2019年第3期34卷 558-562页

作者： WURui LU Jiagen College of Chemical & Environment Science Shaanxi Key Laboratory of CatalysisShaanxi University of TechnologyHanzhong723001China Key Laboratory of Analytical Chemistry for LifeScience of Shanxi Province School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi'an710062China

Fluoride nanoparticles with multiform crystal structures and morphologies were successfully synthesized by a facile, effective, and environmentally friendly coprecipitation method. Transmission electron microscopy (TEM) was used to characterize the nanoparticles. The nanoparticles were modified by pei, CTAB, PAA and Ci, respectively. It was feasible for function by -COOH and -NH2 groups, due to the surface modification. Moreover, different surface modifications of the nanoparticles were examined. The possible formation mechanisms for fluoride nanoparticles with surface modification were presented in detail. More importantly, it is expected to be widely applied to biomedicine.

关键词： fluorides nanoparticles synthesis mechanisms

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复合工艺橡胶沥青混合料的性能

江苏大学学报（自然科学版） 2017年第4期38卷 491-496页

作者：李微韩森吴生海孙培牛冬瑜长安大学特殊地区公路工程教育部重点实验室陕西西安710064 南通市通州区组织部江苏南通226300 长安大学材料科学与工程学院陕西西安710064

为了对复合工艺的橡胶沥青技术指标及其混合料路用性能进行研究,在制备橡胶改性沥青时掺入适量裂解剂,确定合理的制备温度和时间;对4种复合工艺橡胶沥青混合料的水稳定性能、低温弯曲性能及疲劳性能进行耐久性试验.结果表明:裂解剂质量... 详细信息

为了对复合工艺的橡胶沥青技术指标及其混合料路用性能进行研究,在制备橡胶改性沥青时掺入适量裂解剂,确定合理的制备温度和时间;对4种复合工艺橡胶沥青混合料的水稳定性能、低温弯曲性能及疲劳性能进行耐久性试验.结果表明:裂解剂质量分数为0.4%的橡胶沥青,以制备温度190℃,制备时间2 h为宜;掺加裂解剂的橡胶沥青混合料具有优异的高温、低温以及抗水损害性能,其动稳定度甚至是基质沥青混合料的3倍左右;复合工艺的橡胶沥青混合料具有优异的抗水损害、抗疲劳破坏性能以及抗低温弯曲性能,其弯拉破坏应变甚至高于橡胶颗粒SBS改性沥青混合料.

关键词：橡胶改性沥青沥青混合料复合工艺裂解剂路用性能

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大型新能源基地汇集工程合理送出需求研究

分布式能源 2024年第4期9卷 69-77页

作者：张凡景天毛生海于洋孙沛傅旭王雷陶嘉琦中国电力工程顾问集团西北电力设计院有限公司陕西省西安市710000 国网经济技术研究院有限公司北京市昌平区102209 国网青海省电力公司青海省西宁市810000

大型新能源基地汇集工程配套建设的输变电容量,一般是按照新能源装机同等容量或略大于新能源装机容量进行配置。考虑到新能源出力具有间歇性、波动性和能量密度低的特点,传统的汇集工程容量配置方法可能造成电网投资的浪费。以新能源基... 详细信息

大型新能源基地汇集工程配套建设的输变电容量,一般是按照新能源装机同等容量或略大于新能源装机容量进行配置。考虑到新能源出力具有间歇性、波动性和能量密度低的特点,传统的汇集工程容量配置方法可能造成电网投资的浪费。以新能源基地整体的度电成本最低为目标,根据新能源实际出力特性,考虑发电企业和电网企业整体效益最大化,对大型新能源基地汇集工程各电压等级的合理送出需求进行了研究。对西北地区两种新能源基地汇集场景的送出需求研究表明,所提方法可有效节省电网投资,降低大型新能源基地整体度电成本,且风光互补汇集站的最优送出容量显著小于纯风电/纯光伏汇集站。该研究结果可为后续大型新能源基地的汇集工程容量选取提供参考。

关键词：新能源基地汇集工程度电成本送出需求

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大型发烟硫酸蒸发器的设计与应用

硫酸工业 2024年第3期 25-26,49页

作者：吴云钱文娟白生海裴清华沈国栋南京高源环保工程有限公司江苏南京210009

介绍了发烟硫酸蒸发器的设计与应用情况。在制酸系统余热满足不了发烟硫酸蒸发所需热量的情况下,采用蒸汽为热源的卧式蒸发器,通过合理的选材、采用严格的焊接和检测工艺,发烟硫酸蒸发器已稳定运行5年以上。

关键词：发烟硫酸蒸发器三氧化硫分析纯硫酸