title: Enhanced light extraction by heterostructure photonic crystals toward white-light-emission.
abstract: 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.
authors.affiliation: Department of Material Technology, Jiangmen Polytechnic, Jiangmen, Guangdong 529090, PR China.
authors.forename: Heng
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Material Technology, Jiangmen Polytechnic, Jiangmen, Guangdong 529090, PR China. Electronic address: xuzhaohua@iccas.ac.cn.
authors.forename: Zhaohua
authors.initials: Z
authors.lastname: Xu
authors.affiliation: 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.
authors.forename: Bin
authors.initials: B
authors.lastname: Bao
authors.affiliation: 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. Electronic address: ylsong@iccas.ac.cn.
authors.forename: Yanlin
authors.initials: Y
authors.lastname: Song
keywords: Heterostructure; Photonic crystals; RGB emission; Tri-stopbands