Förster resonance energy transfer enhanced color-conversion using colloidal semiconductor quantum dots for solid state lighting
نویسندگان
چکیده
In this paper, we present Förster resonance energy transfer FRET -enhanced color-conversion using colloidal semiconductor quantum dot nanocrystals NCs to make reddish-orange light-emitting diodes for use in ultraefficient solid state lighting. To achieve FRET enhancement at 614 nm, we use an energy gradient hybrid structure made of cyanand orange-emitting CdSe/ZnS NCs PL=492 and 588 nm in solution, respectively . This enables recycling of trapped excitons using FRET and achieves a relative quantum efficiency enhancement of 15.1% in reddish-orange full color-conversion for the integrated hybrid cyan-orange NC layer with respect to the case of full color-conversion using only orange NCs without FRET. © 2009 American Institute of Physics. doi:10.1063/1.3222902
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