报告时间：2017年6月14日15：30-17：00

报告地点：友谊校区阶五教室

报 告 人：IEEE Fellow瑞士苏黎世联邦理工大学Christofer Hierold教授

主 持 人：常洪龙教授

主题：Device Architectures for Single Walled CNT Sensors and NO2 Measurement Results

内容简介：We report on the concept of applying single walled carbon nanotube field effect transistors (SWNT FETs) as functional building blocks in gas sensors. Advances in the device architecture, fabrication processes as well as better understanding of the behavior of SWNT FETs has enabled the vision of using individual-tube devices directly for NO2 gas sensors. Significant progress has been made in understanding the sources of drift and hysteresis, and techniques have been introduced to counteract. Reducing the presence of process residues and dielectrics close to the SWNT to the best possible level leads to the suppression of hysteresis and significant improvement in the noise performance as well as improvement in the cross-sensitivity to humidity. Suspended devices are also attractive for self-heated, ultra-low-power architectures.

报告人简介：Christofer Hierold教授于1987年和1990年获得德国慕尼黑工业大学的硕士和博士学位，并从2002年起任瑞士苏黎世联邦理工大学教授。Christofer Hierold教授在苏黎世联邦理工大学的研究方向主要是用于MEMS制造的新型材料、先进微系统、热电器件和碳纳米管传感器。Christofer Hierold教授发表了超过230篇期刊、国际会议论文和超过20篇国际专利。他是IEEE MEMS 2009的共主席，Transducers2013程序委员会主席，Transducers2019大会主席。从2012年十月起，Christofer Hierold教授担任MEMS领域顶级期刊IEEE Journal of Microelectromechanical Systems的主编。Christofer Hierold教授还是瑞士工程科学院院士和IEEE Fellow。