報告題目：Advances in highly doped upconversion nanoparticles
報 告 人：金大勇
報告時間：2018年11月22日9:00
報告地點：基礎教育樓443
承辦單位：304am永利集团 超輕材料與表面技術教育部重點實驗室
報告人簡介：金大勇，悉尼科技大學生物醫學材料及儀器研究院院長，澳洲國家可集成生物醫療儀器與技術轉化⛩⛪➰所長, 近五年内作為通訊作者先後在《自然》及子刊中發表了十篇原創性工作（Nature 2017, Nature Nanotechnology 2013, Nature Photonics 2014 和 2018, Nature Communications 2014, 2016, 和 2018, Light: Science & Applications 2016 和 2018），和三篇特邀綜述（Nature Nanotechnology 2015, Nature Methods 2018, Nature Communications 2018）。他榮獲了2015年澳洲國家級科研最高獎尤裡卡獎交叉學科創新獎。他也是2016年澳大利亞百名科技創新領軍人物，和2017年澳洲科學院工程科學獎John Booker獎章獲得者。2017年十月, 金大勇教授作為第一個華人科學家獲得澳大利亞總理獎 - 馬爾科姆•麥金托什 - 年度理工人物。
報告内容：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.