Reflection High Energy Electron Diffraction Equipment

这笔补助金用于购买申请所需的设备 反射式高能电子衍射研究 磷化物基化合物半导体的外延生长。 的 仪器是基于电荷耦合检测器的照相机系统 其具有高灵敏度和动态范围的能力， 用于真实的时间测量的高速数据传输，多个 光束测量能力强，角分辨率高。 的 仪器被用来研究动态的位错， 化合物半导体的外延生长，倾斜生长 超晶格，表面原子结构，精密控制 化学计量、量子线器件和量子效应 晶体管

This grant is to purchase the equipment necessary to apply reflection high energy electron diffraction to the study of epitaxial growth of phosphide-based compound semiconductors. The instrument is a charge coupled detector-based camera system which has the capability of high sensitivity and dynamic range, high speed data transfer for real time measurements, multiple beam measurement capacity, high angular resolution. The instrument is being used to study dynamics of dislocations during epitaxial growth of compound semiconductors, the growth of tilted superlattices, surface atomic structure, precision control of stoichiometry, quantum wire devices, and quantum-effect transistors.