Surface, Interface, and Bulk Electronic Structure of Nano-Scale Thin Film Organic Semiconductors

在这项研究中，由分析和表面化学计划支持，x射线光谱的强大组合将用于测量有机半导体的表面，体积和界面电子结构。这些新型半导体之所以引起人们极大的兴趣，是因为它们有望开发先进的、柔性的碳基电子设备。该程序将测量这些薄膜形式的材料的基本电子特性，以及它们如何与物理环境相互作用。它的目标是对迄今为止缺失的有机半导体的电子结构进行明确的光谱测量，从而改变我们对这些材料的理解。该计划将在三个方面产生广泛影响。首先，该项目将对学生和博士后研究人员的教育产生重大影响，使他们接触到国家同步辐射x射线用户设施的高度协作研究环境。其次，该计划将通过支持最先进的多技术x射线光谱仪系统的充分利用，对科学基础设施产生广泛的影响。这一设备是对国家用户设施基础设施的重大改进。最后，这个项目本质上是跨学科和协作的。这些测量技术在有机系统中的成功应用将在化学、物理、材料科学和电气工程的许多领域产生潜在的广泛影响。

In this research, supported by the Analytical and Surface Chemistry Program, a powerful combination of x-ray spectroscopies will be used to measure the surface, bulk and interface electronic structure of organic semiconductors. These new semiconductors are the subject of great interest due to the promise they hold for the development of advanced, flexible, carbon-based electronic devices. This program will measure the fundamental electronic properties of these materials in thin film form, as well as how they interact with their physical environment. It aims to produce definitive spectroscopic measurements of electronic structure in organic semiconductors which have hitherto been missing, and thus transform our understanding of such materials. This program will have broad impact in three areas. First, this project will have a significant impact on the education of students and postdoctoral research associates by exposing them to a highly collaborative research environment at national synchrotron radiation x-ray user facilities. Second, this program will have a broad impact on scientific infrastructure by supporting the full utilization of a state-of-the-art multi-technique x-ray spectrometer system. This apparatus is a significant infrastructure enhancement at a national user facility. Finally, this program is interdisciplinary and collaborative by its very nature. The successful application of these measurement techniques to organic systems will potentially have broad impact in a number of areas of chemistry, physics, materials science, and electrical engineering.