学术报告

【2019-47】

报告人： Feng Wang, Department of Materials Science and Engineering, City University of Hong Kong

报告题目：Controlling Lanthanide Luminescence Core-Shell Nanoparticles

报告人简介：

Dr. Feng Wang is an Associate Professor in the Department of Materials Science and Engineering at City University of Hong Kong. He received his BE(2001)and PhD(2006)degrees in Materials Science and Engineering from Zhejiang University under the supervision of Prof. Minquan Wang and Prof. Xianping Fan. He then carried out postdoctoral research work with Prof. Xiaogang Liu at the National University of Singapore and the Institute of Materials Research and Engineering in Singapore. His research interests include the design, synthesis, mechanistic investigation, and application of micro/nanostructured luminescent materials.Dr. Wang is2018 highly cited research by Clarivate Analytics. He has published about 80 papers with total citations more than 15000 times, such as Nature, Nature Materials, Nature Communications, Angew.Chem. Int.Ed., J. Am. Chem. Soc., etc.

报告内容简介：

 Spectral conversion of light radiation is essential for a variety of modern-day technologies including displays, photovoltaics, data storage, and cancer therapy. In the past decades, a variety of luminescent materials, including organic dyes and semiconductor quantum dots, were developed to realize photon energy conversion in the ultraviolet(UV) to near infrared (NIR) spectral range. However, practical application of these techniques is typically limited by constraints such as toxicity and/or poor stability. In this regard, lanthanide-doped nanoparticles have been developed as a promising alternative to conventional luminescent nanomaterials By comparison, these nanoparticles offer low cytotoxicity, sharp emission peaks, long-lived excited electronic states, as well as high stability against photo bleaching and chemical degradation. In this talk, I focus on our recent efforts on lanthanide-doped core-shell nanoparticles that are generally composed of a layer-by-layer structure with a set of lanthanide ions incorporated into separate layer. Examples will be given to demonstrate how to tune the luminescence process and enhance multiphoton upconversion emission for exciting new technological applications.

报告时间：2019年9月12日(星期四)上午10:00

报告地点：致知楼材料科学与工程学院三层报告厅(2307室)