Enhanced light extraction by heterostructure photonic crystals toward white-light-emission
2016
Li, Heng | Xu, Zhaohua | Bao, Bin | Song, Yanlin
In this work, we present a novel approach on the simultaneous enhancement of intensity of red, green, and blue (RGB) emission by heterostructure colloidal photonic crystals (PCs) with tri-stopbands. The intensity of RGB emission on heterostructure PCs with tri-stopbands overlapping emission wavelengths of RGB QDs can be up to about 8-fold enhancement in comparison to that on the control sample. Furthermore, CIE diagrams show the chromaticity parameters approaching that of white light. The method will be favorable for developing optical devices of high performance.
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