Spatio-Temporal Patterns in Electroluminescent Devices

本研究旨在探讨电致发光半导体中电流细丝的时空模式。这是非线性动力学中一个有趣而新颖的领域。这些图案将由顶部装有CCD相机的金相显微镜观察。帧捕获器将CCD相机的输出数据数字化，并将图像数据加载到实验室的微型计算机中，以供后续数据分析。该系统将能够比预期的灯丝图案的螺旋旋转速度快得多地记录图像。计算机模拟也将进行，以了解这些交流薄膜电致发光半导体器件的非线性特性。UCSB的理论物理研究所对这类工作有强有力的理论支持。

This research is concerned with investigating the spatio-temporal patterns of current filaments in an electroluminescent semiconductor. This is an interesting and novel area of nonlinear dynamics. The patterns will be observed with a metallurgical microscope topped by a CCD camera. A frame-grabber will digitize the output of the CCD camera and load the image data into a laboratory micro-computer for subsequent data analysis. The system will be able to record images much faster than the expected spiral rotation rate of the filament patterns. Computer simulations will also be undertaken to understand the nonlinear hebahior of these ac thin film electroluminescent semiconductor devices. There is strong theoretical support for this type of work at the Institute for Theoretical Physics at UCSB.