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16篇 您的检索式:作者名="Chuanhong Jin"
    题名 作者 年代 出处 被引量
1Plasma-assisted fabrication of monolayer phosphorene and its Raman characterization显示文摘Wanglin Lu Haiyan Nan Jinhua Hong Yuming Chen Chen Zhu Zheng Liang Xiangyang Ma Zhenhua Ni Chuanhong Jin Ze Zhang 2014Nano Research2014,7,6:36
2Chemical vapor deposition growth of large-scale hexagonal boron nitride with controllable orientation显示文摘有一致厚度的大域的六角形的硼氮化物(h-BN ) 的化学蒸汽免职(CVD ) 合成是很挑战性的,主要由于这材料的极其高的成核密度。此处,我们报导晶片规模的成功的生长,有大单人赛水晶的领域尺寸的高质量的 h-BN 单层电影,吗直到~ 72 ??????????????????????????慮潮档湡敮獬???????慮潮畴敢??洠獥灯牯????  ??Xiuju Song Junfeng Gao Yufeng Nie Teng Gao Jingyu Sun Donglin Ma Qiucheng Li Yubin Chen Chuanhong Jin Alicja Bachmatiuk Mark H. Rummeli Feng Ding Yanfeng Zhang Zhongfan Liu 2015Nano Research2015,8,10:12
3Shaped Pt-Ni nanocrystals with an ultrathin Pt-enriched shell derived from one-pot hydrothermal synthesis as active electrocatalysts for oxygen reduction显示文摘有 3d 转变金属的磅的合金 nanocrystals (NC ) ,特别 Ni,是为氧减小反应(ORR ) 的优秀催化剂。在这个工作,第一次,我们表明了水阶段 Pt-M (M = Ni,公司和 Fe ) 的胶体的合成有通过一个灵巧的热水的方法的悦耳的作文和形态学的合金 NC。Pt-Ni 合金 NC 综合了,这个方法更好介绍了 ORR 活动比商业 Pt/C 催化剂。X 光检查精力印射技术的散系列(版本) 表明充实磅的壳在同样综合的 Pt-Ni 合金 NC 上存在。厚分层的充实磅的壳在磅上形成了的大约二个原子 < 潜水艇 class= “ a-plus-plus ” > 50 Ni < 潜水艇 class= “ a-plus-plus ” > 当 Ni 内容增加了, 50 NC 和充实磅的壳的厚度增加了。而且, X 光检查光电子光谱学分析表明 Pt-Ni 合金 NC 上的表面磅原子的氧化水平与一金属的磅 NC 相比减少了,暗示在表面磅原子的 oxophilicity 的减少。有表面磅原子的更低的 oxophilicity 的 Pt-Ni 合金 NC 给更高的 ORR 活动。最活跃的合金样品显示出高 13 倍的特定的活动和高六倍的质量在 0.9 V 对一个可逆的氢电极的活动什么时候与商业 Pt/C 相比。Pt-Ni 合金 NC 也在长期的 ORR 测试比商业 Pt/C 显示出更好的耐久性。Jun Gu Guangxu Lan Yingying Jiang Yanshuang Xu Wei Zhu Chuanhong Jin Yawen Zhang 2015Nano Research2015,8,5:5
4Oxidation behavior of cobalt nanoparticles studied by in situ environmental transmission electron microscopy显示文摘The dynamics of oxidation of cobalt nanoparticles were directly revealed by in situ environmental transmission electron microscopy.Firstly,cobalt nanoparticles were oxidized to polycrystalline cobalt monoxide,then to polycrystalline tricobalt tetroxide,in the presence of oxygen with a low partial pressure.Numerous cavities(or voids) were formed during the oxidation,owing to the Kirkendall effect.Analysis of the oxides growth suggested that the oxidation of cobalt nanoparticles followed a parabolic rate law,which was consistent with diffusion-limited kinetics.In situ transmission electron microscopy allowed potential atomic oxidation pathways to be considered.The outward diffusion of cobalt atoms inside the oxide layer controlled the oxidation,and formed the hollow structure.Irradiation by the electron beam,which destroyed the sealing effect of graphite layer coated on the cobalt surface and resulted in fast oxidation rate,played an important role in activating and promoting the oxidations.These findings further our understanding on the microscopic kinetics of metal nanocrystal oxidation and knowledge of energetic electrons promoting oxidation reaction.Dejiong Zhang Chuanhong Jin Z.Y.Li Ze Zhang Jixue Li 2017Science Bulletin2017,62,11:4
5Self-supporting nanoporous gold-palladium overlayer bifunctional catalysts toward oxygen reduction and evolution reactions显示文摘氧减小反应(ORR ) 和氧进化反应(OER ) 是为能量变换 / 存储系统的关键过程,例如燃料房间,金属空气电池,并且水切开。然而,两反应被他们的懒惰动力学严重地限制,因此要求高度活跃、划算、持久的 electrocatalysts。此处,我们通过驾驶 dealloying 的 nanoporous 黄金(NPG ) 的表面 nanoengineering 开发新奇 bifunctional nanocatalysts。Pd overlayers 被取向附生的 layer-by-layer 生长精确扔到 NPG 系带表面上。更重要地,获得的 NPG-Pd overlayer nanocatalysts 展览显著地在碱的媒介向 ORR 和 OER 提高了 electrocatalytic 活动,对 stateof- 艺术 Pt/C 催化剂的 benchmarked。改进 electrocatalytic 性能被 NPG,从 Pd overlayers 的精确控制的提高的 Pd 利用效率,和变化的唯一的三维的 nanoarchitecture 在电子结构文饰,作为由密度揭示了功能的理论计算。Yan Wang Wei Huang Conghui Si Jie Zhang Xuejiao Yan Chuanhong Jin Yi Ding Zhonghua Zhang 2016Nano Research2016,9,12:3
6Black phosphorus nanoflakes as morphology modifier for efficient fullerene-free organic solar cells with high fill-factor and better morphological stability显示文摘Morphology of the donor:acceptor blend plays a critical role in the photovoltaic performance of the organic solar cells (OSCs).Herein,liquid-phase-exfoliated black phosphorus nanoflakes (BPNFs),for their outstanding electronic property and good compatibility to solution process,were applied to fullerene-free OSCs as morphology modifier.Revealed by X-ray scattering measurements,the PTB7-Th:IEICO-4F blends incorporated with BPNFs exhibit more ordered π-π stacking and promoted domain purity,contributing to lower charge transport resistance and suppressed charge recombination within the bulk heterojunction (BHJ).As a result,a high fill factor (FF) of 0.73 and a best power conversion efficiency (PCE) of 12.2% were obtained for fullerene-free OSCs based on PTB7-Th:IEICO-4F blends incorporating with BPNFs,which is among the highest FF of the as-cast fullerene-free OSCs with PCE over 12%.More importantly,the embedded BPNFs help to improve the morphological stability of the devices probably by retarding the phase mixing in the BHJ during the aging period.Besides,analogous enhancements were observed in another fullerene-free OSCs based on PBDB-T:ITIC.In a word,this work provides a new strategy of using two-dimentional nanoflakes as facile and universal morphology modifier for efficient fullerene-free OSCs.Weitao Yang Long Ye Fenfa Yao Chuanhong Jin Harald Ade Hongzheng Chen 2019Nano Research2019,12,4:3
7Effective passivation of black phosphorus transistor against ambient degradation by an ultra-thin tin oxide film显示文摘Recently, two-dimensional (2D) layered semiconducting materials have been considered as promising channel materials to construct aggressively-scaled transistors owing to their excellent electrostatics and remained high carrier mobility even at atomic thickness (1,2)Among all of the emerging 2D semiconductors.Dianzhong Wu Zhijian Peng Chuanhong Jin Zhiyong Zhang 2019Science Bulletin2019,64,9:2
8Direct Evidence for Lip Lip Interactions in Multi-Walled Carbon Nanotubes显示文摘The stability of open edged multi-walled carbon nanotubes has been investigated by using in situ high resolution transmission electron microscopy at elevated temperatures.Formation of inter-shell structures was experimentally observed for the first time and attributed to a robust interaction between adjacent concentric shells(so-called lip lip interaction).The fl uctuating behavior of the inter-shell structures suggests a mechanism by which the carbon atoms can pass in or out through the inter-shell edges during carbon nanotube growth or shrinkage processes.Chuanhong Jin Kazu Suenaga Sumio Iijima 2008Nano Research2008,1,5:2
9Deriving phosphorus atomic chains from few-layer black phosphorus显示文摘磷原子链,黑磷(BP ) 的最狭窄的 nanostructures,与深入的发展高度相关基于 BP 一个维(1D )nano 电子学部件。在这研究,我们为磷的准备报导一条自顶向下的线路经由在一台传播电子显微镜(TEM ) 内的电子横梁 sculpturing 的原子链。生长和动力学(即,破裂和边移植) 1D,磷链试验性地第一次被捕获。而且,动态行为和同样形成的磷链的联系 energetics 被密度进一步调查功能的理论(DFT ) 计算。这些 1D BP 结构将用作一个新奇平台并且启发 BP 的万用的性质的进一步的探索,这被希望。Zhangru Xiao Jingsi Qiao Wanglin Lu Guojun Ye Xianhui Chen Ze Zhang Wei Ji Jixue Li Chuanhong Jin 2017Nano Research2017,10,7:2
10Direct identification of monolayer rhenium diselenide by an individual diffraction pattern显示文摘在当前的广泛的研究分层二维(2D ) 材料,与象 graphene, hBN,和瞬间 2, 那样的六角形的结构相比,低对称的 2D 材料在各向异性的设备为应用显示出大潜力。金来 diselenide (ReSe 2) 拥有体积空格组 \(P\bar 1 \) 并且与使变形的 cadmium-iodide-type 结构属于三斜晶系的水晶系统。这里,我们建议一个电子把单层 ReSe 2 膜与多层的 ReSe 2 和它的二不同垂直取向区分开来的基于衍射的方法。我们的方法对另外的低对称的水晶系统也适用,包括三斜晶系、单斜晶的格子,只要他们的第三单位房间基础向量不对基础飞机垂直。我们的试验性的结果被 kinematical 电子衍射理论和相应模拟很好解释。我们到另外的 2D 材料的方法的归纳例如 graphene,也被讨论。Zhen Fei Bo Wang Ching-Hwa Ho Fang Lin Jun Yuan Ze Zhang Chuanhong Jin 2017Nano Research2017,10,7:2
11Fabrication of a Freestanding Boron Nitride Single Layer and Its De- fect Assignments 显示文摘JIN Chuanhong LIN Fang Kazu S 2009Physical Review Letters2009,102,19:1
12In-situ fabrication of Mo6S6-nanowire-terminated edges in monolayer molybdenum disulfide显示文摘Edge structures are highly relevant to the electronic, magnetic, and catalyticproperties of two-dimensional (2D) transition metal dichalcogenides (TMDs)and their one-dimensional (1D) counterparts, i.e., nanoribbons, and should beprecisely tailored for the desired application. In this work, we report theformation of novel Mo6S6 nanowire (NW)-terminated edges in monolayermolybdenum disulfide (MoS2) via an e-beam irradiation process combinedwith high temperature heating. The atomic structures of the NW-terminatededges and the dynamic formation process were observed experimentally usingscanning transmission electron microscopy. Further analysis showed that theNW-terminated edge could be formed on both the Mo-zigzag (ZZ) edge andS-ZZ edge and could exhibit a stability superior to that of the pristine ZZ andarmchair (AC) edges. In addition, analogous edge structures could also beformed in MoS2 nanoribbons and other TMD materials such as MoxWl-xSe2. Webelieve that these novel edge structures may impart novel properties to the 2Dand 1D TMD materials and provide new opportunities for their applications incatalytic, spintronic, and electronic devices.Wei Huang Xiaowei Wang Xujing Ji Ze Zhang Chuanhong Jin 2018Nano Research2018,11,11:1
13Monolithic three-dimensional integration of aligned carbon nanotube transistors for high-performance integrated circuits显示文摘Carbon nanotube field-effect transistors(CNT FETs)have been demonstrated to exhibit high performance only through low-temperature fabrication process and require a low thermal budget to construct monolithic three-dimensional(M3D)integrated circuits(ICs),which have been considered a promising tech-nology to meet the demands of high-bandwidth computing and fully func-tional integration.However,the lack of high-quality CNT materials at the upper layer and a low-parasitic interlayer dielectric(ILD)makes the reported M3D CNT FETs and ICs unable to provide the predicted high performance.In this work,we demonstrate a multilayer stackable process for M3D integration of high-performance aligned carbon nanotube(A-CNT)transistors and ICs.A low-κ(-3)interlayer SiO_(2)layer is prepared from spin-on-glass(SOG)through processes with a highest temperature of 220℃,presenting low parasitic capaci-tance between two transistor layers and excellent planarization to offer an ideal surface for the A-CNT and device fabrication process.A high-quality A-CNT film with a carrier mobility of 650 cm 2 V^(-1)s^(-1)is prepared on the ILD layer through a clean transfer process,enabling the upper CNT FETs fabri-cated with a low-temperature process to exhibit high on-state current(1 mAμm^(-1))and peak transconductance(0.98 mSμm^(-1)).The bottom A-CNT FETs maintain pristine high performance after undergoing the ILD growth and upper FET fabrication.As a result,5-stage ring oscillators utilizing the M3D architecture show a gate propagation delay of 17 ps and an active region of approximately 100μm 2,representing the fastest and the most compact M3D ICs to date.Chenwei Fan Xiaohan Cheng Lin Xu Maguang Zhu Sujuan Ding Chuanhong Jin Yunong Xie Lian-Mao Peng Zhiyong Zhang 2023InfoMat2023,5,7:0
14Niobium doping induced mirror twin boundaries in MBE grown WSe2 monolayers显示文摘Mirror twin boundary(MTB)brings unique one-dimensional(1D)physics and properties into two-dimensional(2D)transition metal dichalcogenides(TMDCs),but they were rarely observed in non-Mo-based TMDCs.Herein,by post growth Nb doping,high density 4|4E-W and 4|4P-Se mirror twin boundaries(MTBs)were introduced into molecular beam epitaxy(MBE)grown WSe2 monolayers.Of them,4|4E-W MTB with a novel structure was discovered experimentally for the first time,while 4|4P-Se MTBs present a random permutations of W and Nb,forming a 1D alloy system.Comparison between the doped and non-doped WSe2 confirmed that Nb dopants are essential for MTB formation.Furthermore,quantitative statistics reveal the areal density of MTBs is directly proportional to the concentration of Nb dopants.To unravel the injection pathway of Nb dopants,first-principles calculations about a set of formation energies for excess Nb atoms with different configurations were conducted,based on which a model explaining the origin of MTBs introduced by excess metal was built.We conclude that the formation of MTBs is mainly driven by the collective evolution of excess Nb atoms introduced into the lttice of host WSe2 crystal and subsequent displacement of metal atoms(W or Nb).This study provides a novel way to tailor the MTBs in 2D TMDC materials via proper metal doping and presents new opportunities for exploring the intriguing properties.Bo Wang Yipu Xia Junqiu Zhang Hannu-Pekka Komsa Maohai Xie Yong Peng Chuanhong Jin 2020Nano Research2020,13,7:0
15Spherical to truncated octahedral shape transformation of palladium nanocrystals driven by e-beam in aqueous solution显示文摘The crystallographic shapes of nano crystals play critical roles in determi ning their physical and chemical properties.Liquid phase synthesis serves as one of the most importa nt approaches for preparing shape-controlled nano crystals,therefore,understa nding the formation mecha nisms of the thermod yn amic equilibrium structures of nano crystals in liquid soluti on is importa nt.Using in situ liquid cell tran smissi on electron microscopy(TEM),we observe for the first time the shape transformation of individual palladium nanocrystals from energy unfavored spherical shapes into equilibrium truncated octahedrons in aqueous solution.Via quantitative analysis of the shape evolution dynamics of an individual Pd nano crystal,we find that about 10%of nano crystal atoms were relocated during the shape tran sformation.The mass tran sport is attributed to the synergetic effect of electron beam irradiation and water environment.Yingying Jiang Xiao Li Xiaoming Ma Haifeng Wang Hui Zhang Zheng Liu Ze Zhang Chuanhong Jin 2019Nano Research2019,12,10:0
16Modulation of electronic state in copper-intercalated 1T-TaS_(2)显示文摘Intercalation is an effective method to modify physical properties and induce novel electronic states of transition metal dichalcogenide(TMD)materials.However,it is difficult to reveal the microscopic electronic state evolution in the intercalated TMDs.Here we successfully synthesize the copper-intercalated 1T-TaS_(2) and characterize the structural and electronic modification combining resistivity measurements,atomic-resolution scanning transmission electron microscopy(ADF-STEM),and scanning tunneling microscopy(STM).The intercalated Cu atom is determined to be directly below the Ta atom and suppresses the commensurate charge density wave(CCDW)phase.Two specific electronic modulations are discovered in the near-commensurate(NC)CDW phase:the electron doping state near the defective star of Davids(SDs)in metallic domains and the spatial evolution of the Mott gap in insulating domains.Both modulations reveal that intercalated Cu atoms act as a medium to enhance the interaction between intralayer SDs,in addition to the general charge transfer effect.It also solidifies the Mott foundation of the insulating gap in pristine samples.The intriguing electronic evolution in Cu-intercalated 1T-TaS_(2) will motivate further exploration of novel electronic states in the intercalated TMD materials.Wenhao Zhang Degong Ding Jingjing Gao Kunliang Bu Zongxiu Wu Li Wang Fangsen Li Wei Wang Xuan Luo Wenjian Lu Chuanhong Jin Yuping Sun Yi Yin 2022Nano Research2022,15,5:0
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