Title: Mechanisms for Spatial Organization in Quantum Dot Self-Assembly

Speaker: Da Gao

Date/Time: September 11, 2008, 9:30am – 10:30am MT

Location: IPOC/3164

Brief Abstract: Finding useful mechanisms for controlling the spatial ordering of self-assembled quantum dots remain a challenge. Inspired by experimental observations of spatially ordered growth hillocks on the {001} surfaces of natural graphite crystals, mechanisms for spatial organization in quantum dot self-assembly are proposed. In this talk I will present how we have successfully investigated these mechanisms via Kinetic Monte Carlo Simulations including the development of the atomistic model and the object-oriented simulation software. Finally, I will summarize what we have learned from these computer experiments as well as the unanswered questions. I will also briefly describe several other materials modeling and simulation projects using first-principles quantum mechanical calculations, and particularly the Density Functional Theory (DFT), as well as the dissipative particle dynamics (DPD).

CSRI POC: Ann Mattsson, (505) 844-9218