成大物理系徽
凝態組博士班專題討論 (Seminar)
演講題目: Inelastic Effects On The Transport Properties Of Nanojunction Junction.
演講人: 陳煜璋 教授
國立交通大學電子物理系
演講時間: 2006 年 9 月 21 日
星期四  下午 1 : 10
演講地點: 國家理論科學研究中心二樓演講廳(R203)
內容摘要:  


Understanding electron transport through a single molecular attached to two electrodes is a fundamental issue in molecular electronics. We investigate the effects of electron-phonon inelastic scattering on the transport properties in a single molecular junction in the regime of quasi-ballistic transport. Particularly, we will discuss the small structures occurred in the I-V characteristics and also the current-induced local heating in electrode-alkanethiol-electrode junction due to electrons scattered by the vibrations of molecule. We find that the inelastic profile displays an odd-even effect with chain length which compares well with experimental results. We also compare local temperatures of alkanethiols from theoretical calculations with the measurement from conducting Atomic Force Microscopy (C-AFM).