会报告题目：Carbon Dot Luminophores
报告时间：2022年9月27日15:00-16:00
腾讯会议ID：378-368-646
报告人：Andrey L. Rogach 教授
报告人简介：
Andrey L.Rogach，香港城市大学材料科学与工程系光电材料专业讲座教授，兼任香港城市大学功能光电学中心（CFP）创始主任。研究重点是胶体半导体、金属纳米晶体、纳米碳材料及其混合结构的合成、组装和光谱学以及它们在能源相关和光电领域的应用。Andrey L.Rogach教授是欧洲科学院外籍院士和美国电磁学院院士，并自2011年起担任ACS Nano（IF 15.88）副编辑。Andrey教授在其科研领域发表了500多篇论文，h-index为127，引用超过55,000次，被列为高被引研究员。
报告简介：
Carbon dots (CDs) – small crystalline or amorphous carbon-based quasi-spherical nanoparticles – have recently attracted much attention as promising fluorescent materials. One of their widely accepted advantages is the simplicity of the formation of highly luminescent CDs from a wide variety of organic precursors. At the same time, several recent studies on these chemically synthesized CDs raised questions about the chemical nature of the resulting products; their strong luminescence can originate from the presence of molecular organic fluorophores. On the other hand, use of proper synthetic procedures yield purely carbon dot samples of different sizes; color-tunable fluorescence of CDs with blue, green, yellow, orange, red and even near-infrared emission can be achieved, with the color depending on size of the π-conjugated domains in the CD graphitic core. Recently, we have extended the family of these light-emitting colloidal carbon nanoparticles towards other shapes, such as nanorods with linearly polarized emission, nanobelts andnanorolls. Application of CDs in luminescent solar concentrators has been demonstrated.
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