文獻名： Enhanced light extraction by heterostructure photonic crystals toward white-light-emission

作者： Heng Li^a, Zhaohua Xua , Bin Bao^b, Yanlin Song^b

^a Department of Material Technology, Jiangmen Polytechnic, Jiangmen, Guangdong 529090, PR China

^b Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China

摘要：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.

關鍵詞：Photonic crystals; Tri-stopbands; RGB emission; Heterostructure