Frequency-domain ultrafast dynamics in II-VI semiconductor heterostructures

在这项由化学部高分子、超分子和纳米化学计划资助的项目中，来自加州大学默塞德分校的Anne Kelley博士和David Kelley博士将利用共振拉曼光谱研究II-VI纳米晶体和异质结构中的电子退相和光学声子与激子、电子和空穴的耦合效应。这项工作将有助于我们理解半导体纳米结构中的超快动力学。了解电荷在纳米结构中的确切迁移方式对于设计和实施可能导致器件进一步微型化的新技术至关重要。凯利博士和凯利博士的工作将揭示纳米结构中电荷迁移的细节，并为未来的技术进步提供信息。在此过程中，研究人员将让研究生和本科生--其中许多人来自传统上在科学界代表性不足的群体--参与尖端研究和发现。

In this project funded by the Macromolecular, Supramolecular, and Nanochemistry Program of the Chemistry Division, Drs. Anne Kelley and David Kelley, from the University of California, Merced, will investigate by resonance Raman spectroscopy such effects as electronic dephasing and coupling of optical phonons to excitons, electrons, and holes in II-VI nanocrystals and heterostructures. The work will contribute to our understanding of ultrafast dynamics in semiconductor nanostructures.Knowledge of the exact ways in which electric charge migrates in nanometer-sized structures is essential for the design and implementation of new technologies that can lead to further miniaturization of devices. The work by Drs. Kelley and Kelley will reveal details of charge migration in nanometer-sized structures and inform future technological advances. Along the way, the investigators will engage graduate and undergraduate students - many from groups traditionally under-represented in science - in cutting-edge research and discovery.