Nano and Micro-scale Self-assembly for Heterogeneous Integration on Unconventional Surfaces.

摘要

Self-assembly is emerging as one of the main methods for construction of heterogeneous systems consisting of multiple component types in nano- and micro- scales. The engineered self-assembly used for system integration involves preparation of parts that can recognize and bind to each other or a template, and perfection of procedures that allow for high yield self-assembly of these parts into a system.;I have investigated the template based self-assembly of various components (such as AlGaAs LEDs, nanorods, etc) on unconventional surfaces such as plastic, paper and glass. The circular double heterojunction red LEDs were designed with both p and n- region metal pads on one side. I have shown successful self-assembly of LEDs on plastic to build a display.;I designed a versatile method to optically program the self-assembly process. Using the optical programming method, I have been able to self-assemble four component types with high yield on a template. Furthermore, I have investigated the template-based self-assembly process for metal rods and inorganic crystals at nano scale. Augmented inertial forces were used to get high self-assembly yield for various nanoparticles on silicon.;Throughout my research I have built functional devices on unconventional surfaces such as plastic, glass and paper. A novel design for a paraffin-based color display is shown as an example of a functional device on paper.;Finally I have shown design and fabrication of an in-vivo implant device that can send signal to outside body using visible red light. These implant can be made much smaller in future using the self-assembly technique that is introduced in this research. A discussion of the results and future directions are presented in the last chapter.