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界面物理与界面化学
  • 项目名称：界面物理与界面化学
  • 项目类别：国家杰出青年科学基金
  • 批准号：50525206
  • 申请代码：E020803
  • 项目来源：国家自然科学基金
  • 研究期限：2006-01-01-2009-12-31
  • 项目负责人：杨国伟
  • 负责人职称：教授
  • 依托单位：中山大学
  • 批准年度：2005
中文摘要：

在实验上，我们发展了一系列基于液体环境中激光融蚀的亚稳纳米晶合成与纳米结构组装新方法，并采用这些新手段制备出一系列新型半导体纳米结构，这些工作为发展新的微-纳光电器件提供了必要的材料基础。同时，我们还观测到大量的纳米尺度下材料生长的新物理，新化学和新材料现象，它们极大的丰富了我们关于纳米尺度下材料生长的科学知识。此外，我们提出将互不相溶体系的排斥力作为热力学驱动力来组装纳米结构的思想，在非晶碳表面制备出多种多样的ZnO纳米结构。在理论上，我们建立了基于Gibbs自由能的纳米尺度下材料（纳米结构和量子结构）生长的热力学理论，这些理论工具不仅可以用来理解纳米尺度下材料生长的基本物理过程，而且可以用来对所生长的纳米材料进行理论上的设计。我们还建立了基于纳米热力学理论和连续介质力学理论的纳米材料与纳米结构表面与界面能的热力学理论，并且应用所发展的理论预言了一系列由纳米材料表面与界面所诱导的尺度效应，其中部分理论预言已得到实验验证。

中文主题词： 纳米材料与纳米结构,亚稳相,热力学理论
结论摘要：

英文主题词Nanomaterials and nanostructures,metastable phase,thermodynamics

成果综合统计
成果类型
数量
  • 期刊论文
  • 会议论文
  • 专利
  • 获奖
  • 著作
  • 77
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期刊论文
Temperature-dependent surface alloying in Au/Ni (110)
Trapping high pressure nanophase of Ge at ambient pressure and temperature
Ordering Fe nanowires on Cu (100) surface.
Size-dependent interface energy.
Ab initio study of structural and electronic properties of SrTiO3 (001) oxygen-vacancy surfaces
Electron-beam irradiation induced shape transition of Sn-SnO2 nanocable
Mechanisms of size-dependent shape evolution of one-dimensional nanostructural growth.
Optical properties of single-bonded cubic phase of nitrogen
Lattice dynamics of single-bonded cubic nitrogen
Nanometer-size-dependent thermodynamic criterion of thermal stability of binary immiscible metallic
Surface smoothing of amorphous silicon films.
Single-bonded cubic phase of nitrogen: first-principle calculations.
Thermodynamic model of surface energy of nanocrystal
Growth mechanisms of one-dimensional zinc oxide hierarchical structures
Growth mechanism of SnO2/Sn nanocable
Solid solubility limit in alloying nanoparticles.
Charge-induced transformation from miscible to immiscible in alloying nanoparticles.
Physical and chemical origin of size-dependent spontaneous interfacial alloying in shell-core nanost
Size-induced strain and stiffness of nanocrystals
Noble-metal nanoparticle patterning using pulsed-laser deposition in liquid for surface-enhanced Ram
Surface energy and shrinkage of a nanocavity.
Field emission of one-dimensional micro- and nanostructure of zinc oxide.
Origin of self-limiting oxidation of silicon nanwires
Wetting layer evolution upon quantum dots growth
Nanosize-confinement induced enhancement of spontaneous polarization in a ferroelectric nanowire
Supramolecular nanowires self-assembled on a stepped Ag (110) surface
Fe-encapsulated boron fullerene: A novel single molecular device with tunable electronic and magneti
Synthesis of nanocrystals and sequential assembly of functional nanostructures with shape-dependent
Ni@B80: A single molecular magnetic switch
Surface energy of nanostructures with negatives curvature and related size-effects
Localized Nanodiamond Crystallization and Field Emission Performance Improvement of Amorphous Carbon
Size-dependant oxidation behavior for the anomalous initial thermal oxidation process of Si
Strain self-relieving mechanism of quantum dots self-assembly on nanowire
Physical mechanisms of shape evolution induced by Si capping in Ge quantum dots self-assembly
On physical understanding of quantum rings self-assembly upon droplet epitaxy
Novel band structures and transport properties from graphene nanoribbons with armchair edges.
Micro-and nanocubes of carbon with C8-like and blue luminescence
Nanoporous structures: Smaller is stronger
Double hexagonal Fe nanocrystals and magnetism
Micro-and nanocube of silicon with z inc-blende structure
Phase transition from hexagonal to cubic GaN upon laser ablation in liquid
Synthesis of body-center cubic carbon nanocrystal
Origin of unusual rapid oxidation process for ultrathin oxidation (<2 nm) of silicon
Physical mechanisms of hydrogen-enhanced onset of epitaxial growth of silicon by plasma-enhanced che
Surface alloying on nanoscale: Mo on Au nanocrystalline films.
Surface energy of nanowire.
Thermodynamic theory of quantum dots self-assembly
Theoretical determination of contact angle in quantum dots self-assembly
First-principles calculations of structural, electronic and magnetic properties of SeNiO3
Enhanced field emission properties from well-aligned ZnO nanocones
Superheating and melting of nanocavity
Giant magnetic-optic effect in perovskite BiNiO3 with ferromagnetic half-metallic phase
Controllable fabrication and cathodoluminescence performance of GeO2 micro- and nanocubes.
Growth mechanisms of quantum rings upon droplet epitaxy
First-principles study of electronic and magnetic properties of BiNiO3
Shape-induced ultraviolet absorption of CuO shuttle-like nanoparticles.
Anomalous stability and size effects of tin confined a nanotube
Roughing titanium quantum wire on patterned monohydride diamond (001) surface.
First-principles study of structural, electronic, and multiferroic properties in BiCoO3
Physical origin of spontaneous interfacial alloying in immiscible W/Cu multilayers.
Physical mechanisms of blue-shift of UV luminescence of a pencil-like ZnO nanowire
Laser ablation in liquids: applications in synthesis of nanocrystals.
Mechanisms of agave-like zinc oxide nanowire array on amorphous carbons.
First-principles study of pressure-induced metal-insulator transition in BiNiO3
Sink-effect of nanocavities: thermodynamic and kinetic approach.
Ab initio study of rumpled relaxation and core-level shift of barium titanate surface
Anomalous Young’s modulus of nanotube
Thermodynamic theory of nucleation and shape transition of quantum dots.
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