U.S.-Germany Cooperative Research: Understanding of the Defect Chemistry of Barium Titanates for Dielectric Applications Using Electron Energy-Loss Spectroscopy

该奖项支持赖斯大学的Susanne Stemmer与德国耶拿大学玻璃化学系的Christian Ruessel的合作。该合作研究钛酸盐分子家族，如钛酸钡，近年来在信息存储器件或可调谐微波器件等许多重要应用中引起了人们的关注。目前缺乏提供这些微结构中缺陷分布信息的技术。在这里资助的合作工作将开发一种方法来量化钛酸盐的点缺陷化学和介电性质几乎下降到原子水平的电子能量损失光谱。该项目得益于多组分氧化物缺陷-性能关系方面的专业知识和从高度还原熔体合成氧化物方面的专业知识的协同作用。该研究还将受益于共享表征设备和材料合成设备。

9909963StemmerThis award supports Susanne Stemmer from Rice University in a collaboration with Christian Ruessel of the Department of Glass Chemistry at the University of Jena, Germany. The collaboration studies the titanate family of molecules, such as barium titanate, which have attracted attention recently for many important applications such as information storage devices or tunable microwave devices. Techniques that provide information about the distribution of defects within these microstructures are currently lacking. The cooperative work funded here will develop a method to quantify the point defect chemistry and dielectric properties of titanates almost down to the atomic level by means of electron energy-loss spectroscopy. The project benefits from synergy of expertise in defect-property relationships of multicomponent oxides and expertise in the synthesis of oxides from highly reduced melts. The research will also benefit from sharing characterization facilities and materials-synthesis facilities.