关于瑞典Umeå大学唐诗博士学术报告的通知
2013-09-18
134
关于瑞典Umeå大学唐诗博士学术报告的通知
报告题目： Light-Emitting Electrochemical Cell
报告人：唐诗博士（瑞典Umeå大学）
时间：2013年9月22日（周日）上午10:00
地点：光电楼二楼大教室
摘要：
A frequently overlooked alternative to the organic light-emitting device (OLED) is light-emitting electrochemical cell (LEC). It is similar to a OLED in structure, but in LEC devices the light-emitting polymer (or small-molecule compound) is blended with an electrolyte. The mobile ions in the electrolyte rearrange when a potential is applied between the electrodes, forming high charge-density layers at each electrode interface, allowing efficient and balanced injection of electrons and holes into the polymer. It is particularly noteworthy that efficient injection is possible regardless of the work function of the electrodes, as exemplified by the use of stable materials for both cathode and anode in LEC devices. Recently, the LEC devices have demonstrated distinct improvements in performance, both from an operational lifetime and from an efficiency perspective.
In this talk I will briefly introduce the concept and work mechanism of LEC, and present our work in these fields, including fixed organic p-n junction in LEC device, high-efficient and long lifetime LEC device, white LEC device using blend polymer and single polymer as the emitter, functional and solution-processed trilayer electrochemical device, and first sample utilizing the fluorescent small-molecule compounds as emitter in LEC device.
In this talk I will briefly introduce the concept and work mechanism of LEC, and present our work in these fields, including fixed organic p-n junction in LEC device, high-efficient and long lifetime LEC device, white LEC device using blend polymer and single polymer as the emitter, functional and solution-processed trilayer electrochemical device, and first sample utilizing the fluorescent small-molecule compounds as emitter in LEC device.
主讲人简介：
Dr. Shi Tang received his Bachelor degree in Department of Chemistry at Jilin University in 2002 and Ph.D. degree in State key Laboratory for Supramolecular Structure and Materials at Jilin University in 2008. Then, he joined The Organic Photonics and Electronics Group as a postdoctoral fellow in Department of Physics at Umeå University, Sweden. He has been a researcher supported by Knut and Alice Wallenberg Foundation in Department of Physics at Umeå University since 2013.
Dr Shi Tang’s research focuses on the fabrication of light-emitting electrochemical cells (LECs) and functional device utilizing the electrochemical doping of conjugated polymer. He has authored over 30 papers in peer-reviewed international journals including JACS, Advanced Functional Materials and Chemical Communication, etc.
Dr Shi Tang’s research focuses on the fabrication of light-emitting electrochemical cells (LECs) and functional device utilizing the electrochemical doping of conjugated polymer. He has authored over 30 papers in peer-reviewed international journals including JACS, Advanced Functional Materials and Chemical Communication, etc.
