Date: 2009. 10. 23, 2:00 PM Place: Rm. 404, Bldg 503 -Abstract- As we all know, nature does marvelous job, particularly in living systems where each functional network is purposely devised, organized and programmed to perform a specific function. Each functional element does not play a significant role by itself, but once integrated as programmed with necessary components, the system is ready to start working. It is the right time for scientists and engineers to challenge Green Technology for energy solution. There have numerous approaches been made for photovoltaic materials and devices for solar cell. We have been interested in developing an artificial photosynthetic model mimicking natural photosynthesis unit. We have designed and synthesized donor-acceptor (D-A) organic chromophores and integrated as a helical supramolecular device; an ensemble of photoreceptor antenna array and reaction center. We investigated energy and electron transfer efficiency of the system and developed a vertically oriented helical superstructure of the chromophore by self-assembling onto the substrate. I will discuss on this and also, touch on a new advanced system.