报告题目：Plasmon-Enhanced Solar Energy Conversion by Photoelectrochemical cells and Photovoltaics
报告人：吴年强教授，美国西弗吉尼亚大学航天与机械工程学系
时间：2015年6月26日下午13:30~15:30
地点：曹光彪大楼617会议室
邀请人：洪樟连教授
报告内容：Solar energy can be converted either to electric energy via photovoltaics or to chemical energy via photocatalysts. Emerging of surface plasmon resonance (SPR) provides a new opportunity to improve the performance of photocatalysts and photoelectrochemical cells. 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. 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. 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 the performance of solar water splitting by a hematite nanorod array can be greatly improved by plasmon-induced photonic and energy transfer enhancement.
报告人简介：Dr. Nianqiang (Nick) Wu is currently Professor of Materials Science in Department of Mechanical & Aerospace Engineering at West Virginia University (WVU), USA. He received his Ph.D. degree in Materials Science & Engineering from Zhejiang University, China in 1997. He joined WVU as Assistant Professor in 2005, promoted to Associate Professor in 2010 and Full Professor in 2014.
He currently serves on the advisory board of “Interface”, the home journal of the Electrochemical Society (ECS). He also serves as Vice Chair of Sensor Division in ECS. He has received the Benedum Distinguished Scholar Award, and the Alice Hamilton Award for Excellence in Occupational Safety & Health: Biological Category. He has won the WVU Statler College Outstanding Researcher Award twice.
Dr. Wu’s current research interest lies in chemical sensors and biosensors for health care and environment monitoring, photocatalysts and photoelectrochemical cells for solar energy harvesting. His research is funded by NSF, NIH and DOE. He has published 1 book entitled “Biosensors Based on Nanomaterials and Nanodevices”, 3 book chapters, 134 peer-reviewed papers in journals such as Nature Photonics, Nature Comm., Journal of the American Chemical Society, Analytical Chemistry and etc.. 20 of his papers are ranked among the top 1% most cited in their subject fields (Thomson Reuters 2015). His papers were cited about 1200 times in first six months in 2015 with a total citation count of >7400 times.
欢迎师生参加！
浙江大学材料科学与工程学院
2015年6月25日
