Development of an Ultrahigh Vacuum Nanocircuit Characterization System for Research and Student Training

这笔赠款支持加州大学欧文分校开发一个超高真空表面科学室，用于研究纳米级材料，特别是纳米电子器件的电子特性和潜在的电子应用。超高压系统将有助于为了解纳米级电子设备与其化学环境之间的相互作用奠定基础。特高压室将配备专门的样品处理装置，用于电气传输测量。表面科学技术将应用于高比表面积纳米材料，如碳纳米管，以帮助确定其真实的传输特性，并研究它们与分子吸附物的相互作用。该系统将提供严格控制的化学状态和有限的吸附物种，以便研究用于化学或生物传感器应用的电子纳米材料。该设备将影响加州大学欧文分校20多名化学和材料物理(CHAMP)专业学生的研究生教育。该研究生课程强调物理、化学和纳米科学之间的跨学科联系，并通过动手实验室轮换促进积极的学习环境，向新学生介绍研究生水平的研究。学生将通过研究化学环境对纳米管和纳米线或纳米团簇的电子性质的影响来获得经验，通过制备带有和不带有吸附的器件来获得经验。学生将在化学、物理和生物学科与纳米系统的交叉中获得新的视角。

This grant provides support for the development of an ultra-high vacuum (UHV) surface science chamber at the University of California, Irvine, for the study of nanometer scale materials, specifically the electronic properties and potential electronic applications of nanoelectronic devices. The UHV system will help build a foundation of understanding for the interactions between nanoscale electronic devices and their chemical environment. The UHV chamber will be equipped with specialized sample handling for electrical transport measurements. Surface science techniques will be applied to high-surface area nanomaterials such as carbon nanotubes to help determine their true transport properties and to investigate their interactions with molecular adsorbates. The system will provide carefully controlled chemical states and limited adsorbed species to allow for investigations of electronic nanomaterials for chemical or biological sensor applications.This apparatus will impact the graduate education of more than 20 students enrolled at UC Irvine in the Chemical and Materials Physics (ChaMP) program. This graduate program stresses interdisciplinary connections between physics, chemistry and nanoscience, and it promotes an active learning environment with a hands-on laboratory rotation to introduce new students to graduate level research. Students will gain experience through investigations of the effects of chemical environment on the electronic properties of nanotubes and nanowires or clusters, by preparing devices with and without adsorbates. Students will gain new perspectives in the crossing of the disciplines of chemistry, physics and biology with the nanometer scale systems.