报告介绍 报告摘要： 　　Amorphous matter especially amorphous alloys （or metallic glasses）are currently among the most actively studied materials. In the last half century, the amorphous alloys, which is a newcomer in glassy family, is at the cutting edge of research and of current interest and significance in condensed matter physics, materials science and engineering. The unique structural features and o...

报告介绍 报告摘要： 　　The formation of chemical bonds depends strongly on the spatio-temporal conditions within an ensemble of starting molecules. We found that by using nanostructured surfaces on metallic single crystals, a significant increase of the reaction rate can be obtained, even with simple linear hydrocarbons exhibiting very poor chemical reactivity. By imposing appropriate self-organized nano-co...

报告介绍 报告摘要： 测定聚合物溶液的相图是项繁琐而细致的工作。将微流技术、荧光标记和激光光散射相结合，发展出一种快速、简便和可靠的聚合物溶液相图测定方法，这源于对基本要领的正确理解和深度把握。

报告介绍 报告摘要： 　　(1) a simple introduction , (2) the main points of the enhancemen by the local electromagnetic field (EM) at spherical silver particles. (3) the experimental evidence for SERS active sites of atomic dimensions . The average signal from the SERS active sites(SAS) mimics a non-genuine" first layer effect” which is often interpreted as “Chemical effect". (3) Th...

报告介绍 报告摘要： 　　While organic molecules are recognized for their strong nonlinear optical properties, the main challenge for applications is the need of developing a solid-state organic material that not only reflects the high optical nonlinearities of its molecular components, but that also has a high optical quality and can be easily and efficiently combined with current integrated optics technolog...

报告介绍 报告摘要： 　　This talk will present an overview of recent discoveries about singlet and triplet excitons and their interaction in rubrene, a molecular crystal currently under intense study as an organic semiconductor for electronic and optoelectronic applications. Photon absorption in this material directly results in the creation of singlet excitons, whose radiative recombination leads to a photo...

报告介绍

报告介绍 Abstract: 　　There have been surging developments in the area of spin-orbit coupled quantum gases. In this talk, I will review the recent experimental and theoretical advances in understanding these fascinating many-body systems. Then I will turn to my current theoretical work on spin-oribt coupled quantum gases. Finally I will conclude with some interesting directions and some challenging problems...

报告介绍 报告摘要：　　Nanobubbles on hydrophobic surfaces can be imaged using Atomic Force Microscopy and are implicated in the very long-range attraction measured between hydrophobic surfaces. However, the widely accepted theory of bubble dissolution predicts that small bubbles under the influence of Laplace pressure should rapidly dissolve resulting in bubble lifetimes of less than a second. Such short li...

报告介绍 报告摘要： Nanopore detector is considered as a promising candidate for the third generation DNA sequencer for $1000 genome. Tremendous progresses have been made for improving the sensitivity of nanopore sensors toward this goal. Nonetheless, there are still several profound and intrinsic challenges for achieving this goal. One is to prepare electrical probes with single-base resolution. The other i...

报告介绍 报告摘要： Because atoms and molecules are small in size and fast in motion, it is difficult to visualize them directly and probe their microscopic motions, which precludes a microscopic understanding on dynamics of condensed matter, such as phase transition kinetics and collective vibrations (normal modes). In contrast, micrometer-sized colloidal particles can serve as good model systems for these ...

报告介绍 报告摘要： 　　Manipulating light on the nanometer scale is a challenging topic not only from a fundamental point of view, but also for applications aiming at the design of miniature optical devices. Nanoplasmonics is a rapidly emerging branch of photonics, which offers various means to manipulate light using surface plasmon excitations on metal nanostructures. Here I will talk about our recent stud...

报告介绍 报告摘要： 　　High cost and insufficient durability are the two major challenges in Fuel cell development and commercialization. For proton exchange membrane fuel cells (PEMFCs), electrocatalysts, and in particular Platinum (Pt)-based electrocatalysts, are the major contributor to both of these barriers. In order to develop cost-effective and durable catalysts, two research approaches have been car...

报告介绍 报告摘要：　　With the advance of semiconductor nanofabrication techniques, high-quality, single-crystal and light-emitting semiconductor nanomembranes become available and serve as an ideal research platform for nanoscale light-matter interaction in a solid-state environment. This talk will focus on cavity quantum electrodynamics (CQED) experiments in GaAs photonic crystal nanomembranes with InAs q...

报告介绍 报告摘要：Active matter consists of a collection of objects that are able to continu-ously convert stored biological or chemical energy to drive their motion. The interest in studying the dynamics of active matter originates from the aim to understand the intriguing self-organization phenomena in nature, including bird flocks,bacteria colonies, tissue repair, and cell cytoskeleton.Very recently, bre...

报告介绍 报告摘要：报告内容分为两部分， 一部分是碳纳米材料（包括单壁碳纳米管、石墨烯）生长机理的分子动力学理论研究。通过自下而上的有机合成方法和分子动力学模拟，生长出手 性和半径都得到控制的单壁碳纳米管；通过DFTB的分子动力学模拟，分别研究 了在Ni和Cu表面石墨烯的两种生长机理：体相-表面和纯表面催化机理。第二部分以有机催化的羟醛缩合反应为例介绍一种功能 强大的全局探索化学反应机理的新方法-Global Reaction Routine Ma...