Surface Chemistry of Electronic Materials

这个跨学科的奖项，杰弗里施瓦茨和史蒂芬L。普林斯顿大学的Bernasek得到了化学系先进材料项目和材料研究系固态化学项目的支持。该研究将解决电子设备中使用的不同材料的界面的合成和表征。共同的主题将是表面改性，从金属-配体相互作用的角度来看。将强调两个领域。首先是使用金属醇盐的表面钝化的研究，以实现基板表面和聚合物覆盖层之间的化学键合。这项研究将有助于包装电子产品，以承受氧化或化学攻击的失败。第二个研究领域将集中在电子材料的活化，通过使用表面络合物将导电有机物质键合到对制备高效发光二极管（LED）具有重要意义的改性电极表面。通常，表面改性的氧化铟锡电极将覆盖有含有聚亚苯基亚乙烯基、聚吡啶基亚乙烯基和聚乙烯基咔唑的共聚物。界面将通过FTIR和XPS表征。 与电子工程系Antoine Kahn教授合作，研究多层器件的LED性能与分子结构之间的关系。封装多层复合材料在微电子器件中无处不在。这种对多层膜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。 在合成，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.