Abstract
Polymer light emitting diodes (PLED) have been always considered as promising candidate for next generation of display technology. The purpose of this thesis is to investigate the integration of PLED and SU-8 waveguide on silicon substrate for data communication. The Integration of red and green PLED with SU-8 waveguide on silicon substrate and the use of photodetector to measure electro-optic modulation from waveguide is successfully demonstrated. In order to achieve multi-wavelength transmission in SU-8 waveguide, we also focused on blue PLED. PFO-DMP is the best commercial blue material because it is of high photoluminescence and electroluminescence efficiency. SU-8 exhibits good thermal and chemical stability and it’s refractive coefficient is 1.5. It is suitable for waveguide material. We found that diffusion layer is the most cost-effective and feasible processing method to couple light into waveguide. The minimum requirement of modulation frequency of data communication is 1M Hz. In our devices, good modulation at 200k Hz was achieved. We believed with continued studies, the data communication with PLED on SU-8 waveguide will become possible.