Hybrid silicon nanocrystal-organic light-emitting devices for infrared electroluminescence.

Cheng, Kai-Yuan; Anthony, Rebecca; Kortshagen, Uwe R; Holmes, Russell J · Nano Lett · 2010

basic_science · Level V

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Abstract

We demonstrate hybrid inorganic-organic light-emitting devices with peak electroluminescence (EL) at a wavelength of 868 nm using silicon nanocrystals (SiNCs). An external quantum efficiency of 0.6% is realized in the forward-emitted direction, with emission originating primarily from the SiNCs. Microscopic characterization indicates that complete coverage of the SiNCs on the conjugated polymer hole-transporting layer is required to observe efficient EL.

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