报告题目：Advances in highly doped upconversion nanoparticles
报 告 人：金大勇
报告时间：2018年11月22日9:00
报告地点：基础教育楼443
承办单位：材料科学与化学工程学院 超轻材料与表面技术教育部重点实验室
报告人简介：金大勇，悉尼科技大学生物医学材料及仪器研究院院长，澳洲国家可集成生物医疗仪器与技术转化基地所长, 近五年内作为通讯作者先后在《自然》及子刊中发表了十篇原创性工作（Nature 2017, Nature Nanotechnology 2013, Nature Photonics 2014 和 2018, Nature Communications 2014, 2016, 和 2018, Light: Science & Applications 2016 和 2018），和三篇特邀综述（Nature Nanotechnology 2015, Nature Methods 2018, Nature Communications 2018）。他荣获了2015年澳洲国家级科研最高奖尤里卡奖交叉学科创新奖。他也是2016年澳大利亚百名科技创新领军人物，和2017年澳洲科学院工程科学奖John Booker奖章获得者。2017年十月, 金大勇教授作为第一个华人科学家获得澳大利亚总理奖 - 马尔科姆•麦金托什 - 年度理工人物。
报告内容：Doping is the key to the new design of materials towards achieving enhanced performance and untapped properties. The restraint of ‘concentration quenching’, where having too many emitters too close to each other leads to a quenching of the overall luminescence, has been long challenging the field of optical luminescent materials. In my talk, I will illustrate the mechanism, and showcase new strategies that bypass the concentration quenching effect in highly doped luminescent nanoparticles, which now starts to advance the field of luminescence nanomaterials. A broad range of new design strategies and controlled synthesis to enable high doping concentrations will be discussed. Our particular emphasis will be on the new optical properties and their superior performance in a wide range of emerging applications, including single molecule sensing, colour tuning, optical multiplexing, lasing, and super resolution nanoscopy.