松下与IMEC联合开发工作电压1．8v的MEMS谐振器
松下与比利时的IMEC宣布，共同开发了Q值为业界最高水平的低电压驱动MEMS谐振器。部分开发技术已在“IEDM 2010（2010 IEEE International Electron Devices Meeting）”（2010年12月6—...松下与IMEC联合开发工作电压1．8v的MEMS谐振器
松下与比利时的IMEC宣布，共同开发了Q值为业界最高水平的低电压驱动MEMS谐振器。部分开发技术已在“IEDM 2010（2010 IEEE International Electron Devices Meeting）”（2010年12月6—8日，美国旧金山）上公开。展开更多
In this paper, we demonstrate that controlled dopantoncentration is an essential issue for charge carriers transporting in red Phosphorescent Organic Light-Emitting Device （PHOLED）. Carriers transport via dopant mol...In this paper, we demonstrate that controlled dopantoncentration is an essential issue for charge carriers transporting in red Phosphorescent Organic Light-Emitting Device （PHOLED）. Carriers transport via dopant molecules in the emitting layer with a single host, however, via both dopant and host molecules when their energy levels are well aligned. Conditions for reduced driving-voltage and enhanced efficiency of red PHOLED are obtained by employing a mixed host structure. A pure red PHOLED with color coordinates of （0.67, 0.33） has been realized by using only 4 wt% dopant, The device achieves 100 cd/cm2 at 2.9 V, with correspond- ing power efficiency of 9.3im/W and external quantum efficiency of 14.3%.展开更多
文摘松下与IMEC联合开发工作电压1．8v的MEMS谐振器
松下与比利时的IMEC宣布，共同开发了Q值为业界最高水平的低电压驱动MEMS谐振器。部分开发技术已在“IEDM 2010（2010 IEEE International Electron Devices Meeting）”（2010年12月6—8日，美国旧金山）上公开。
基金the National Hi-Tech Research and Development Program of China，the Ministry of Science and Technology of China，the National Natural Science Foundation of China，the Research Fund for the Doctoral Program of Higher Education，the Scientific and Technological Developing Scheme of Jilin Province
文摘In this paper, we demonstrate that controlled dopantoncentration is an essential issue for charge carriers transporting in red Phosphorescent Organic Light-Emitting Device （PHOLED）. Carriers transport via dopant molecules in the emitting layer with a single host, however, via both dopant and host molecules when their energy levels are well aligned. Conditions for reduced driving-voltage and enhanced efficiency of red PHOLED are obtained by employing a mixed host structure. A pure red PHOLED with color coordinates of （0.67, 0.33） has been realized by using only 4 wt% dopant, The device achieves 100 cd/cm2 at 2.9 V, with correspond- ing power efficiency of 9.3im/W and external quantum efficiency of 14.3%.
