物质科学前沿高端论坛(41)-超硬材料国家重点实验室

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物质科学前沿高端论坛(41)

信息来源:本站 发布时间:2018-06-05

报告一:Developing multifunctional nanoprobe for single entity studies

报告人:何劲 副教授

美国佛罗里达国际大学

报告摘要:With significant progress in nanoscience and nanotechnology, single entity and single cell analysis became possible and showed increased importance in basic, translational, and clinical research. My group are interested to develop novel multifunctional nanobiosensors for single entity and single cell analysis in situ and in real time. Our current approach is focused on developing multifunctional nanopore based multimode sensing techniques. In this talk, I will show that the canopore has the potential to be integrated with carbon or metal nanoelectrode and surface enhanced Raman spectroscopy (SERS) techniques, leading to a variety of electrical, electrochemical and nanophotonic sensing methods for single nanoparticle analysis.

报告人简介:何劲,1999年复旦大学物理系毕业,2005年获美国亚利桑那州立大学(Arizona State University)物理系生物物理博士学位。2005-2007年在亚利桑那州立大学生物设计研究所(Biodesign Institute)作博士后,2007-2011年升任助理研究教授(Assistant Professor Research)2011至今任美国佛罗里达国际大学(Florida International University)物理系副教授。长期从事纳米生物技术的交叉学科研究工作。主要研究方向:单分子单细胞生物物理,纳米尺度和界面的电子和离子输运,多功能纳米孔的制备和生物应用。自2005年以来,已经在国际学术期刊上发表研究论文50多篇。共计被SCI引用2800多次。拥有专利3项。2015年获得美国NSF career award和佛罗里达国际大学(FIUtop scholar

报告二:Development of Hybrid Supercapacitors

报告人:王春蕾 教授

美国佛罗里达国际大学

吉林大学唐敖庆讲座教授

报告摘要:Recently it is of great interest to develop viable on-chip energy storage systems. In this study, interdigitated asymmetric microsupercapacitors were fabricated using photolithography, lift-off and electrodeposition methods. Manganese oxide (MnOx) and reduced graphene oxide (rGO) comprised the pseudocapacitive and the double layer component, respectively. Symmetric MnOx//MnOx, rGO//rGO as well as asymmetric rGO//MnOx microsupercapacitors with different MnOx thicknesses were constructed and characterized in aqueous media. The asymmetric microsupercapacitor with the intermediate MnOx film thickness displayed the optimal energy-power trade-off superior to that of both the symmetric as well as the other asymmetric configurations. The optimal microsupercapacitor exhibited a high stack energy density and high power density. The high energy-power trade-off of the device is attributed to the synergistic effects of utilizing double layer and pseudocapacitive charge storage mechanisms along with in-plane interdigital microelectrode design within one optimized micro-device. In addition to asymmetric microsupercapacitors, our efforts on developing aqueous Li-ion capacitors and solid state systems will be briefly introduced in this talk.

时间:201868日(周五)上午9:00

地点:前卫南区唐敖庆楼C603报告厅

举办单位:超硬材料国家重点实验室

物理学院

吉林省物理学会

中国物理学会高压物理专业委员会