10月22日 耶鲁大学Mark Reed教授学术报告：Molecular Transistors

报告时间：10月22日 上午9:30
报告地点：唐楼A313
报告人：Mark A. Reed
Departments of Electrical Engineering and Applied Physics
Institute for Nanoscience and Quantum Engineering Yale University

Electron devices containing molecules as the active region have been an active area of research over the last few years.  In molecular-scale devices, a longstanding challenge has been to create a true three-terminal device; e.g., one that operates by modifying the internal energy structure of the molecule, analogous to conventional FETs. Here we report¹the observation of such a solid-state molecular device, in which transport current is directly modulated by an external gate voltage. We have realized a molecular transistor made from the prototype molecular junction, benzene dithiol, and have used a combination of spectroscopies to determine the internal energetic structure of the molecular junction, and demonstrate coherent transport.^2,3  Resonance-enhanced coupling to the nearest molecular orbital is revealed by electron tunneling spectroscopy, demonstrating for the first time direct molecular orbital gating in a molecular electronic device.
 
 
¹ H. Song et al.,  Nature 462, 1039 (2009)
² H. Song et al., J. Appl. Phys. 109, 102419 (2011)
³ H. Song et al., J. Phys. Chem. C, 114, 20431 (2010)