报告题目：Theoretical studies of the electronic structure of silicon dopants and transition-metal phthalocyanines
报告人：武威 UCL Department of Physics and Astronomy and London Centre for Nanotechnology
地点：LE423
时间：2019.4.16（周二）下午4点
报告摘要：My talk will fall into two parts. In the first part, I will talk about my recent theoretical study of the excited states of defects in silicon, which have a great potential for quantum technologies and terahz radiation. By combining first-principles calculations and quantum chemistry methodology, we have computed the excitation energies and spectra for a donor pair in silicon. In the second part, I will discuss the other type of semiconductors, magnetic organic semiconductors formed by transition-metal phthalocyanine molecules, which can be an important research area and material platform in the future for spintronics, quantum computing, and solar cells. I will show they have a very long spin-lattice relaxation time, and robust magnetic properties with an exchange interaction higher than the boiling point of liquid nitrogen, which is rare in organic semiconductors.
报告人简介：武威博士毕业于英国伦敦大学学院（2019年QS世界大学第10名），并先后在伦敦帝国理工学院化学与材料系（2019年QS世界大学排名第8位），以及世界著名纳米技术研发中心 - 伦敦纳米技术中心工作。武威博士的学术成就集中在国际半导体理论前沿领域的关键性课题，主要包括无机半导体中的杂质团簇和有机半导体以及有机大分子的光磁和含时理论，以及这些材料在量子计算，量子模拟，自旋电子学中的应用。
邀请人：吴小志
