MRI: Acquisition of an Ultrahigh Vacuum Scanning Tunneling Microscope

来自重大研究仪器项目的这一奖项将支持老道明大学购买超高真空扫描隧道显微镜(STM)。扫描隧道显微镜将提供单原子分辨率，并允许激光-表面相互作用。加载锁将允许将样品从生长室转移到STM。利用这种扫描隧道显微镜进行的多学科研究包括：(A)电子诱导的表面结构修饰；(B)超快表面相变；(C)原子氢表面刻蚀；(D)飞秒脉冲激光沉积生长薄膜、纳米晶体和量子点；(E)用于电子和/或光子器件的有机电活性聚合物的研究；(F)结构依赖的纳米颗粒光学；(G)合成碳纳米管的形貌研究；以及(H)微波放电的表面修饰。研究生和本科生将利用STM进行研究，并接受薄膜生长、表面和纳米晶体表征以及超高真空技术方面的培训。这项重大研究仪器奖支持老道明大学获得单原子分辨率的超高真空扫描隧道显微镜(STM)。这种扫描隧道显微镜将用于研究电子和光学材料、薄膜和纳米颗粒。研究生和本科生将使用STM进行他们在薄膜生长、表面改性、表面和纳米晶体表征以及超高真空技术方面的研究和培训。这种STM的使用将为我们的学生改善跨学科(例如化学、电气工程、材料科学和物理)的教育环境，并将整合到目前提供的工程和科学的研究生和本科课程中。该仪器将用于向学生强调将原子尺度材料的特性与宏观特性相联系的重要性，以及表面特性如何影响电子材料、聚合物和纳米技术。

This award from the Major Research Instrumentation program will support Old Dominion University with the acquisition of an ultrahigh vacuum scanning tunneling microscope (STM). The STM will provide single atom resolution and allow for laser-surface interaction. A load-lock will allow the transfer of samples from a growth chamber to the STM. Multi-disciplinary reseach to be performed with this STM include: (a) electronic-induced surface structural modification; (b) ultrafast surface phase transitions; (c) surface etching by atomic hydrogen; (d) growth of thin films, nanocrystals and quantum dots by femtosecond pulsed laser depostion; (e) studies of organic electroactive polymers for electronic and/or photonic devices; (f) structural-dependent nanoparticle optics; (g) morphology studies for synthesis of carbon nanotubes; and (h) surface modifications with microwave discharges. Graduate and undergraduate students will perform research with the STM and gain training in thin film growth, surface and nanocrystal characterization, and ultrahigh vacuum technology.This Major Research Instrumentation award supports Old Dominion University with the acquisition of an ultrahigh vacuum scanning tunneling microscope (STM) with single atom resolution. This STM will be used to study electronic and optical materials, thin films, and nanoparticles. Graduate and undergraduate students will be using the STM to perform their research and gain training in thin film growth, surface modification, surface and nanocrystal characterization, and ultrahigh vacuum technology. The use of this STM will enhance the interdisciplinary (e.g. chemistry, electrical engineering, material science, and physics) educational environment for our students and will be integrated in graduate and undergraduate courses presently offered in engineering and sciences. This instrument will be used to highlight to the students the importance of relating atomic scale materials characteristics to macroscopic properties, and how surface properties affect electronic materials, polymers, and nanotechnology.