报告题目：杂化碳基器件：带有活性分子的碳纳米管/石墨烯器件的功能化（Hybrid carbon based devices: functionalization of nanotube and graphene devices with active molecules）
报 告 人：陈雅妮博士（InstitutNéel/CNRS, France）
报告时间：2016年6月13日（周一）10:00
报告地点：校本部E106
邀 请 人：赵新洛 教授
报告简介：
As 1D conductors, carbon nanotubes bridge the gap between small molecules electronics and semiconductor technology with great promises while being a playground for organic chemistry. Beyond miniaturization, they offer the opportunity to design new devices from accurate sensors to optoelectronic and quantum devices. In this talk, I will firstly present the work about gate tunable electron-phonon coupling in a double wall carbon nanotube (DWNT) system. The inner metallic tube is affected by electrostatic gate and shows dramatic changes of overall Raman signature. Then I will introduce the work on DWNT-chromophore hybrid devices, including the fabrication and structure, light to electron transduction of the hybrids and optoelectronic response of hybrids in the single electron regime. Light excitation of the molecules leads to doping of the hybrids and reveals the coupling between the nanotube walls. The hybrid system presents signature of single electron tunneling at 10 K and kinetics of single electron tunneling can be tuned by light illumination.
References:
1: B. Zhao and H. Guo, J. Am. Chem. Soc., 137 15964 (2015), State-to-state mode specificity: Energy sequestration and flow gated by transition state.
2: H. Guo and B. Jiang, Acc. Chem. Res., 47, 3679 (2014), The sudden vector projection model for reactivity: Mode specificity and bond selectivity made simple.
