应Lionel Vayssieres教授和沈少华教授邀请，美国西弗吉尼亚大学Nianqiang (Nick) Wu教授将于7月3日（明天）上午10:00在能动学院北二楼11楼会议室举行学术讲座，请实验室师生积极参加学习交流。
讲座时间：7月3日（明天）上午10:00
讲座地点：北二楼11楼会议室
讲座题目：Plasmon-Enhanced Solar Energy Conversion in Metal-Semiconductor Heterojunctions
讲座人：Nianqiang (Nick) Wu
邮箱: nick.wu@mail.wvu.edu
摘要：This presentation is focused on the solar energy conversion via photovoltaics or photocatalysts. Emerging of surface plasmon resonance (SPR) provides a new opportunity to improve the performance of solar energy devices. This talk will present our effort on fundamental understanding of the underlying mechanism of plasmon-enhanced solar energy harvesting. In particular, the speech will discuss our newly discovered plasmon-induced resonant energy transfer (PIRET) mechanism in the metal-semiconductor heterojunctions, which is new addition to the existing mechanisms such as light scattering and hot electron injection. The PIRET mechanism along with the hot electron transfer process suggests that plasmonic nanostructures can act as photo-sensitizers. The discovery of plasmonic photo-sensitizers has opened a new avenue to develop efficient photocatalysts and solar cells. The theoretical maximum efficiency of solar energy conversion in plasmonic metal-semiconductor heterojunctions is predicted. This talk will demonstrate our effort on development of effective plasmonic metal-semiconductor heterojunctions to enable strong coupling between the plasmonic metal and the semiconductor. Our results show that plasmon can not only enhance photoconversion but also promote chemical processes in a sustainable manner.
讲座人简介
Dr. Nianqiang (Nick) Wu is currently George B. Berry Chair Professor in Materials Science Program at West Virginia University (WVU), USA. He received his Ph.D. degree in Materials Science & Engineering from Zhejiang University, China in 1997. He was a Postdoctoral Research Fellow at University of Pittsburgh from 1999 to 2001. Afterwards he directed Keck Surface Science Center at Northwestern University in USA in 2001-2005. He then joined WVU as Assistant Professor in 2005, promoted to Associate Professor in 2010 and Full Professor in 2014.
Dr. Wu is a Fellow of the Electrochemical Society (FECS) and a Fellow of Royal Society of Chemistry (FRSC). He was identified in the 2018 Highly Cited Researchers list by Clarivate Analytics (Thomson Reuters). He has received the Benedum Distinguished Scholar Award and the Alice Hamilton Award for Excellence in Occupational Safety & Health. He was the recipient of the WVU Statler College Outstanding Researcher Award. He served as Board of Directors in the Electrochemical Society (ECS) and Chair of ECS Sensor Division in the past. He also served on editorial advisory boards for international journals.
Dr. Wu’s research interest lies in (i) photocatalysts and photoelectrochemical cells for environmental and energy sustainability, (ii) electrochemical energy storage, and (iii) biosensing and photodynamic therapy (precision medicine). He has authored or co-authored 180 journal articles, 3 book chapters and 1 book entitled “Biosensors Based on Nanomaterials and Nanodevices”. His papers were cited more than 2,700 times in a single year in 2018, achieving a total citation of >18,300 throughout his career with an H-index of 64.
