本栏目只有登录用户才能查看!
用户名:
密  码:
加入收藏 | 实验室安全
网站首页
实验室概况
组织结构
动态信息
科学研究
人才队伍
学术交流
开放课题
MOI简报
仪器设备
动态信息
实验室信息
学术动态
学术动态 当前位置:首页 > 动态信息 > 学术动态
 

关于香港城市大学王锋教授学术报告的通知

发布时间:2017-06-01   来源:
报告题目:Controlling lanthanide luminescence in core-shell nanoparticles
报告人:王锋教授 Hong Kong SAR,China and City University of Hong Kong Shenzhen Research Institute
报告时间:2017.6.2 10:00,
报告地点:教三338
 

Abstract: 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 upconversion 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.

 

References

[1] X. Chen, D. Peng, Q. Ju, F. Wang, Photon upconversion in core-shell nanoparticles. Chem. Soc. Rev. 2015, 44, 1318.

[2] Wen, H.; Zhu, H.; Chen, X.; Hung, T. F.; Wang, B.; Zhu, G.; Yu, S. F.; Wang, F. Upconverting near-infrared light through energy management in core–shell–shell nanoparticles, Angew. Chem. Int. Ed. 2013, 52, 13419.

[3] X. Chen, L. Jin, W. Kong, T. Sun, W. Zhang, X. Liu, J. Fan, S. F. Yu, Feng Wang, Confining energy migration in upconversion nanoparticles towards deep ultraviolet lasing, Nature Communications 2016, 7, 10304, doi: 10.1038/ncomms10304.

[4] Chen, B.; Liu, Y.; Xiao, Y.; Chen, X.; Li, Y.; Li, M.; Qiao, X.; Fan, X.; Wang, F. Amplifying Excitation-Power Sensitivity of Photon Upconversion in a NaYbF4:Ho Nanostructure for Direct Visualization of Electromagnetic Hotspots, J. Phys. Chem. Lett. 2016, 7, 4916.

 

 

Biography: Dr. Feng Wang received his BE (2001) and PhD (2006) degrees in Materials Science and Engineering from Zhejiang University. His PhD thesis was focused on the synthesis and characterization of lanthanide-doped fluoride nanomaterials 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. He joined the faculty of City University of Hong Kong in 2012 as an Assistant Profess, and is promoted to Associated Professor in 2017. His research is focused on nano- and micro-structural materials comprising luminescent lanthanides for applications in biology and photonics.


 
【返回】
上一篇:关于美国俄克拉荷马大学杨瑞青教授学术报告的通知
下一篇:关于光电学院兼职教授Hari Shroff学术报告的通知
 
版权所有 浙江大学现代光学仪器国家重点实验室 浙ICP备07500376号
技术支持:蒙特信息·让您方便构建品质网站
仪器设备预约 | 办公系统 | 短信平台 | 论文投稿 | 文件下载| 管理员登录