Surface Chemistry of Electronic Materials

这项授予普林斯顿大学的Jeffrey Schwartz和Steven L.Bernasek的跨学科奖项得到了化学部的先进材料计划和材料研究部的固体化学计划的支持。这项研究将致力于电子设备中使用的不同材料界面的合成和表征。从金属-配体相互作用的角度来看，共同的主题是表面修饰。将强调两个方面。首先是使用金属醇盐进行表面钝化的研究，以实现衬底表面和聚合物覆盖层之间的化学结合。这项研究将有助于封装电子产品经受住氧化或化学侵蚀的破坏。第二个研究领域将集中在通过使用表面络合物将导电有机物种键合到修饰电极表面来激活电子材料，这对制备高效发光二极管(LED)具有重要意义。通常，表面修饰的氧化铟锡电极将覆盖含有聚苯乙炔、聚吡啶乙烯和聚乙烯咔唑的共聚物。接口将通过FTIR和XPS进行表征。多层膜器件的发光性能与分子结构的关联将通过与电气工程学教授Antoine Kahn的合作进行。封装的多层膜复合材料普遍存在于微电子器件中。这种对多层膜中表面和界面的合成和表征的基础研究将导致更高效和环境稳定的器件。合成、表征、聚合物科学和微电子学研究的高度跨学科性质将为学生提供广泛的培训。

This interdisciplinary award to Jeffrey Schwartz and Steven L. Bernasek at Princeton University is supported by the Advanced Materials Program in the Chemistry Division and the Solid State Chemistry Program in the Division of Materials Research. The research will address the synthesis and characterization of the interfaces of dissimilar materials used in electronic devices. The common theme will be surface modification, viewed from the perspective of metal-ligand interactions. Two areas will be emphasized. First is a study of surface passivation using metal alkoxides to effect chemical bonding between the substrate surface and a polymer overlayer. This study will facilitate packaging electronics to withstand failure by oxidative or chemical attack. The second research area will focus on the activation of electronic materials by using surface complexes to bond conducting organic species to modified electrode surfaces of importance for the preparation of efficient light emitting diodes (LED). Typically, surface-modified indium tin oxide electrodes will be overlayered with copolymers containing polyphenylenvinylene, polypyridylvinylene and polyvinylcarbazole. Interfaces will be characterized by FTIR and XPS. Correlation of LED performance of multilayer devices with molecular structure will be carried out through collaboration with Prof. Antoine Kahn in Electrical Engineering.Encapsulated multilayer composites are ubiquitous in microelectronic devices.This fundamental study of the synthesis and characterization of surfaces and interfaces in multilayers will lead to more efficient and environmentally stable devices. The highly interdisciplinary nature of the research in synthesis, characterization, polymer science and microelectronics will provide broad training for students.