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Throughout the history of mankind, scientists and engineers have relied on the slow and serendipitous trial-and-error approach for materials discovery. In 1990s, the combinatorial...

个人简介： Dr Tang is a Senior Lecturer (Associate Professor) in Energy in Chemical Engineering at University College London (UCL) and an Honorary Lecturer in Chemistry at Imperia...

Abstract: Bi2Se3 is predicted to be a 3D topological insulator (TI) with a large band gap and a single Dirac cone. Although surface sensitive spectroscopy has revealed the nature...

Due to the reduced spatial dimensions, many intriguing quantum phenomenon arise in two-dimensional (2D) systems, such as graphene, 2D electron gas (2DEG) in semiconductor heteros...

Recently, level crossings in the energy bands of crystals have been identified as a key signature for topological phase transitions. I will discuss the criteria that need to be met...

Seceond Harmonic Genration (SHG) and two photon luminescence are used to study the surface of metallic nanoparticles. We observed the first direct experimental evidence for the sur...

Semiconductor nanostructures such as quantum dots (QDs) have offered unique opportunities to investigate sophisticated quantum optical effects in a solid-state system. These includ...

There have been great interests in recent years on exploring the use of hybrid organic-inorganic nanostructures in various sustainable energy applications including photovoltaics a...

In this talk, I shall discuss issues concerning computational modeling of quantum transport properties of nanoelectronics from the atomic point of view, within the framework of d...

Air pollution and global climate change are important environmental issues that affect our society. In order to address these problems and to develop control strategies, advanced d...

We propose a scheme for coherent rotation of the valley isospin of a single electron confined in a carbon nanotube quantum dot [1]. The scheme exploits the ubiquitous atomic disord...