时间：2021年1月5日（周二）下午2:00-3:30

Time：5 January, Tuesday 2021, 2:00-3:30 PM

地点：西湖大学云栖校区5号楼报告厅

Venue: Lecture Hall, 1F, Building 5, Yunqi Campus

主持人：西湖大学工学院PI 师恩政

Host: Dr. Enzheng Shi, PI of School of Engineering, Westlake University

主讲嘉宾/Speaker：

朱海明教授，浙江大学

Prof. Haiming Zhu，Zhejiang University

主讲人简介/Biography:

    Haiming Zhu is currently a tenure-track professor in the Department of Chemistry, Zhejiang University. He received the Bachelor degree from USTC in 2008 and PhD degree from Emory University in 2014. He worked as a postdoc in Columbia University from 2014 to 2016. His research interests include photoexcitation dynamics in 2D materials and van der Waals heterostructures, interactions and dynamics in mixed dimensional and hybrid heterostructures, coupled electron and lattice motion in ionic and molecular-like inorganic semiconductors and heterostructures, optical properties and photoexcitation dynamics in energy conversion materials and devices. Prof. Zhu has published more than 80 papers on peer-review journals, including Science, Nature Materials, Science Advances, Nature Communications etc.

    朱海明，浙江大学化学系研究员。2008年毕业于中国科学技术大学，获得化学物理学士学位；2014年毕业于美国Emory大学，获得物理化学博士学位。2014-2016年在美国Columbia大学做博士后研究工作。主要从事利用超快时间分辨激光光谱研究低维半导体材料和高新材料的激发态载流子动力学行为。在Science, Nature Materials, Science Advances， Nature Communications等期刊发表文章80余篇。

讲座摘要/Abstract:

    2D semiconductors, including graphene, transition metal dichalcogenides, perovskites, have shown exciting potential in ultrathin and flexible optoelectronic, valleytronics, photovoltaic and light-emitting devices. In this talk, I will talk about the excited state properties in these emerging 2D semiconductors and their implications for optoelectronic applications. In the first part, I’ll show the unusually strong carrier-carrier interaction due to reduced dielectric screening in 2D materials provide very exciting opportunities to achieve energy conversion beyond Shockley–Queisser limit, including hot electron harvesting and multiexciton generation. In the second part of my talk, I’ll show the complex interplay between exciton and lattice dynamics in 2D perovskites, due to the soft and polar nature, leads to significantly screened inter- and intra- exciton interaction and intriguing exciton and spin dynamics.

讲座联系人/Contact：

    工学院办公室

    戴老师 daixueping@westlake.edu.cn