Nizamoglu, S.Akin, O.Demir, Hilmi Volkan2015-07-282015-07-282009-06-170003-6951http://hdl.handle.net/11693/13465The quantum efficiency enhancement in nanocrystal solids is critically important for their efficient use as luminophors on color-conversion light emitting diodes (LEDs). For this purpose, we investigate energy gradient mixture of nanocrystal solids for recycling their trapped excitons by varying their donor-acceptor nanocrystal ratios and study the resulting quantum efficiency enhancement as a function of the donor-acceptor ratio in the solid film for hybrid LEDs. We achieve a maximum quantum efficiency enhancement of 17% in these nanocrystal solids when the donor-acceptor ratio is 1:1, demonstrating their highly modified time-resolved photoluminescence decays to reveal the kinetics of strong energy transfer between them.EnglishCadmium compoundsExcitonsIi-vi semiconductorsLight emitting diodesNanostructured materialsPhosphorsPhotoluminescenceTime resolved spectraWide band gap semiconductorsZinc compoundsArticle10.1063/1.3141516