Flexible Solar Cells Using Biotech Materials Processing

"In Phase I STTR research, KTI and UMASS Lowell will demonstrate the feasibility of employing bioprocess synthesized macrodyes as well as redox gel electrolytes prepared from complexable macromolecules in dye sensitized solar cells (DSSCs). DSSCs offerdesign flexibilities, and cost advantage. KTI has already addressed most of the key issues involved in reel-reel manufacturing of DSSCs on flexible substrates.The major objective of the Phase I research is to identify appropriate class of macrodyes for sensitization of titanium oxide and macro-complexing agents for the preparation of gelled redox electrolytes. The macrodyes and macro-complexing agents will befurther optimized for employment in reel-to-reel production of large area DSSC based PV modules with high conversion efficiencies during Phase II research. A prototype flexible solar cell with bioprocess derived macrodyes and gelled electrolytes will bedemonstrated during Phase I Research. Results from Phase I research will be used in developing optimum dyes and redox electrolytes during Phase II research. Expected benefits include products suited for military applications, ranging from enhanced performance for handheld electronics (e.g., GPS) to portable (wearable) PV generators for communications, powering lightweight displays, bio-sensors, etc. Weenvision our technology eventually in the form of a power-generating textile, used in soldiers' tents and field hospitals. Low raw material costs and inexpensive module manufacturing processes are expected to yield a cost $3/Wp for silicon cells)."