Generation of White Light by Hybridization of Red-Green-Blue-Luminescent Materials

초록

Herein, the fabrication of a white luminescent material with photoluminescence (PL) in the region ranging from 350 to 900 nm is reported. Formation of the luminescent material is achieved simply by the high-temperature (1100 degrees C) annealing of silicon-rich oxide nanowires containing a ZnO phase, which are grown by exposing a Zn film to Si and O plasma generated using a mixture of N2O and SiH4 gases at a low temperature (380 degrees C). The PL spectral response is easily tuned by varying the mixing ratio of the two gases or the Zn film thickness. The generation of white luminescence can be attributed to the hybridization of Si nanocrystals (red), silicon oxide (green), and ZnO (blue)-based materials.

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